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1

Skerry, Nathaniel S. (Nathaniel Standish) 1971. "Transformed materials : a material research center in Milan, Italy." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/70358.

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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2002.
Includes bibliographical references (p. 74-75).
[Transformed Materials] is an exploration into today's design methodologies of architecture production. The emergence of architectural form is questioned in relation to the temporal state of design intent and the physical material construct. At a time when there is an increased awareness of the current state of technology, material innovation and methods of fabrication, there are new speculations of what materiality is and can be. This thesis will propose an architecture that emerges through an exploration of the material concept that directly informs and expresses the fundamental ideas of the project. Building methods have changed widely over time, and are co-responsible for creating a dialog between functional requirements, technological invention, and material implication that reflects the current cultural state. Today's architectural products have in a sense reverted back to thin surfaces. Current cultural issues such as socioeconomic, environmental impact, transportability, efficiency, lightness, storability, technology, and mass production, have over time created a state of "thinness ". This project tries to offset the current trend of building by accepting the norms of architectural products, and reinventing their role within a contemporary language that explores more deeply the material qualities and properties associates with it. This thesis will use steel as the primary building material. Steel is a material that has become standardized in how it is shaped and formed, thus its ability to produce an architecture has been reduced purely to a dogmatiC approach of engineered solutions or preconceived results. Steel, is artificial by nature; if we suspend our preconceptions of steel, could the material be designed such that its role is critical in defining space, structure and program in a tectonic system? The area of research and examination will be focused on the design of a Material Research Center (mRC). located in Milan, Italy.
by Nathaniel S. Skerry.
M.Arch.
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2

Summers, Joshua. "Materials and craft in architecture." Cincinnati, Ohio : University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=1054816376.

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3

Samsonow, Emily L. "Material Celebration: Exploring the Architectural Potential of Waste Materials." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1306501078.

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4

Carbone, Christopher M. (Christopher Martin) 1975. "Mainstreaming straw as a construction material : understanding the future of bio-based architectural materials." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/64914.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2003.
Includes bibliographical references (p. 143-158).
There is a current trend in design and construction towards the use of distinct prefabricated components in the production of buildings. There is also a growing awareness by architects and builders of the environmental impact caused by the production, operation, and disposal of buildings. Since the industrial revolution, building materials have tended towards high-energy solutions, as materials of renewable origin are inherently difficult to manufacture to the tight tolerances demanded from modern design. Additionally, they are perceived as more susceptible to fire and rot than many synthetic materials. Yet, impending energy shortages as well as environmental concerns now force us to reconsider if there are ways to use renewable materials without compromising design. One such material worthy of reconsideration is straw; which has been used for thousands of years in architecture. Straw refers to the dried stems of grain bearing grasses, which are often burned or tilled back into the soil after the grain has been harvested. This paper will survey the current global production of straw and the environmental impact of straw use in construction. Further, it will identify future opportunities for the use of straw in modern design. Included is a design for a straw insulation system for commercial architecture. The system is comprised primarily of straw with a bio-based shell. This insulation system is designed for disassembly from the other building systems so that these organic materials can return to their natural cycles at the end of the use phase. A sample design is given to demonstrate its use in construction, and prototypes are built to test the feasibility of this design. Computer simulations are performed to demonstrate hygro-thermal response of this design to the climates of Boston, Massachusetts; Minneapolis, Minnesota; and Los Angeles, California. Preliminary thermal testing of the prototypes qualitatively indicates their effectiveness. The analysis is then expanded to a discussion of the link between global waste generation, resource consumption, and life spans of building systems. Finally, a simple method of classifying natural resources is presented which may help educate future generations to better understand the full ramifications of design and development, and a life cycle analysis of the designed component is performed using this new classification scheme.
by Christopher M. Carbone.
S.M.
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5

Parrott, Jordan A. "Timbre Architecture: The Glitch is the System." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1243013919.

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6

Dierichs, Karola [Verfasser], and Achim [Akademischer Betreuer] Menges. "Granular architectures : granular materials as "designer matter" in architecture / Karola Dierichs ; Betreuer: Achim Menges." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/1205736948/34.

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7

Medhi, Jishu K. "Modular Architecture for Intelligent Aerial Manipulators." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1573811910421278.

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8

Liao, Nancy Han 1975. "Complex curvilinear surfaces in composite materials." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/68382.

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Thesis (M.Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2001.
Includes bibliographical references.
The thesis will propose a method of architectural design that applies the use of continuous and curvilinear surfaces. It will explore a method of engaging the continuous surface as an expression and response to t he dynamic form-giving forces of the 1. functional /programmatic needs, 2. environmental and 3. metaphoric, all of which will be further elaborated in the Introduction. This thesis will be conducted with the understanding that these shaping forces, as well as materiality, are critical and complex design issues that can be communicated through the form-giving process by an exploration and application of a continuous and curvilinear surface constructed with composite materials in an urban site condition.
by Nancy Han Liao.
M.Arch.
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9

Tichenor, James 1976. "Electronically modulated materials : effects and context." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/27032.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2004.
Includes bibliographical references (p. 94-96).
Recent advancements and increased availability of technologies have led to the design of surfaces and materials that can encode physical properties into digital information that can be manipulated at will. While research at the nano and micro scales continues to develop new materials, the availability and improvements of microcontrollers in recent years has allowed designers to become involved in the developments of human and macro scale physical-digital surfaces. In this thesis I will develop a set of aesthetic issues and attempt to show examples of how I tackled those issues through a series of projects in the domain of physical-digital surfaces. These projects will range in scale and level of refinement from design proposals to working prototypes. The set of aesthetic issues developed for this thesis will contextualize the surface studies that I have been working on within an art historical context and also suggest areas for further investigation and experimentation.
by James Tichenor.
S.M.
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10

Nguyen, Van Tang. "Nanostructured soft-hard magnetic materials with controlled architecture." Thesis, Le Mans, 2018. http://www.theses.fr/2018LEMA1007.

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Parmi les aimants sans terres raresactuellement étudiés, τ-MnAl ferromagnétique est uncandidat à haut potentiel, car il possède despropriétés magnétiques intrinsèques prometteuses.Dans cette thèse, Mn(Fe)AlC a été synthétisé parbroyage mécanique. Les effets du carbone sur lamicrostructure et les propriétés magnétiques ont étéétudiés. Les résultats montrent qu’une pureté élevéede τ-MnAl(C) pouvait être obtenue avec un dopage à2% en atomes de carbone, montrant clairement l’effetstabilisant du carbone. L’alliage Mn54.2Al43.8C2possède les meilleures propriétés magnétiques :aimantation à 2T M2T = 414 kAm-1, aimantationrémanente Mr = 237 kAm-1, coercivité HC = 229 kAm-1et |BH|max = 11,2 kJm-3. HC augmente inversementproportionnellement avec la taille des cristallites de laphase τ et proportionnellement à la teneur en C. Descalculs ab initio confirment l’effet stabilisant etindiquent les positions interstitielles préférentielles ducarbone dans la maille quadratique de la phase τ-MnAl.Les alliages Mn51-xFexAl47C2 (x = 0,25, 0,5, 1, 2, 4, 6)ont également été synthétisés par broyagemécanique, montrant une pureté élevée de la phaseτ jusqu'à un taux de substitution de 2% du Mn par duFe. L'ajout de Fe dans MnAl(C) réduit l'aimantationet TC, mais augmente légèrement la valeur de HC. Laspectrométrie 57Fe Mössbauer à 300K a été utiliséepour sonder l'environnement local dans ε-, τ-, β- etγ2-MnFeAl(C). γ2-, ε- et β-MnFeAl(C) présentent unestructure hyperfine quadripolaire alors que τ-Mn50.5Fe0.5Al47C2 montre une structutr hyperfinemagnétique assez complexe. Une expérience despectrométrie Mössbauer effectuée à bassetempérature (10K) et sous champ magnétique (8T)montre un ordre ferromagnétique local non colinéairedes moments magnétiques de Fer par rapport à ladirection du champ appliqué. Le champ hyperfin del’alliage MnFeAl calculé par Wien2k confirme lespropriétés magnétiques et les résultats despectrométrie Mössbauer
Among currently investigated rare-earth-free magnets, ferromagnetic τ-MnAl is a highly potential candidate as having promising intrinsic magnetic properties. In my thesis, Mn(Fe)AlC was synthesized by mechanical alloying method. Effects of carbon on microstructure and magnetic properties were systematically investigated. It was found that high purity of τ-MnAl(C) could be obtained at 2 at.% C doping, showing clearly stabilizing effect of carbon. Mn54.2Al43.8C2 has the best magnetic properties: magnetization at 2T M2T = 414 kAm-1, remanent magnetization Mr = 237 kAm-1, coercivity HC = 229 kAm-1, and |BH|max = 11.2 kJm-3. HC increased inversely with the crystallite size of τ phase and proportionally with C content. Moreover, first principle calculation showed both stabilizing effect and preferable interstitial positions of carbon in tetragonal τ-MnAl. Mn51-xFexAl47C2 (x= 0.25, 0.5, 1, 2, 4, 6) alloys were also synthesized by mechanical alloying method, showing high purity of τ phase up to 2 at.% Fe doping. Adding of Fe on MnAl(C) reduced both magnetization and TC but likely increased slightly HC. 57Fe Mössbauer spectrometry at 300K was used to probe local enviroment in ε-, τ-, β-, and γ2-MnFeAl(C). In which, γ2-, ε-, and β-MnFeAl(C) exhibited a quadrupolar structure while τ -Mn50.5Fe0.5Al47C2 spectrum showed a rather complex magnetic hyperfine splitting. The interaction between Fe and Mn examined by in-field Mössbauer measurement at 10 K and 8 T showed a non-collinear magnetic structure between Fe and Mn with different canting angles at different sites. Hyperfine field of MnFeAl alloy calculated by Win2k supported both magetic properties and Mossbauer results
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11

Dominique, Matilda. "The Architecture of Threads." Thesis, Konstfack, Textil, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-4751.

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Most people might not reflect upon textiles as anything more than the soft material in our clothes. As a crafts practitioner, I gain knowledge of woven materials that go beyond that. The knowledge of weaving and materials is developing the ideas that form the concept of this project. From the tacit knowledge, derived from years of practically working with textile materials, an intellectual understanding of materials and the worlds they construct is growing. In this project, I decipher my own ideas of the woven structure in order to invite others to experience the universe within textiles. I look at the weave as a structure, built up by small particles in forms of threads. If seeing the weave from a distance, each repeated pattern can in turn be perceived as the smallest element. By seeing woven materials from more than one perspective, I believe that the understanding of the construction itself can develop. As this understanding grows, so does the ability to judge the quality of the material. In this line of thought, the tools used to reflect upon what materials are, how they are made and what they signify, becomes greater. To visualise the knowledge I have of the textile structures I make, I work with a waffle weave structure, together with a dyeing technique called Ikat. I also draw connections between the woven structure and that of a map – as a tool that humans use to understand their surroundings. The use of perspectives and scale is another tool that is used to widen our perception of the world around us. In order to create an experience of the universe within textiles and to invite others into that world, I draw parallels between the miniature scale of the woven material and larger, architectural structures. The final outcome of this project is a textile installation, consisting of three weavings that together form a larger construction. The construction is open for people to enter and experience. Inside the construction a smaller woven piece is presented as a map over the woven world. This weaving initially contains the same information as the large structure, but on a much smaller scale.

Image no. 16 has been removed due to copyright reasons. A link to the image can be found in the List of References

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12

Langford, William Kai. "Electronic digital materials." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/95609.

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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 107-109).
Digital materials are constructions assembled from a small number of types of discrete building blocks; they represent a new way of building functional, multi-material, three-dimensional structures. In this thesis, I focus on the construction of microelectronics from vertically assemble-able two-dimensional parts. With just a conducting and insulating part-type, I show that it is possible to make discretely assembled electrical networks. With a third resistive part-type, I show that it is possible to make any passive electronic component and complex impedance circuitry, including antennas and matching networks. Finally, with four semiconducting part-types I suggest that it is possible to assemble active components like diodes and transistors. This work details the part production processes to create two-dimensional micro-bricks, modeling and assembly strategies to create functional structures from discrete parts, the measurement and evaluation of the bulk properties of the assemblies, and experiments in assembly automation.
by William Kai Langford.
S.M.
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13

Little, Travis Shane. "Materials matter exploring unconventional appliications of brick in architecture /." Cincinnati, Ohio : University of Cincinnati, 2006. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1148267772.

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Thesis (Master of Architecture)--University of Cincinnati, 2006.
Title from electronic thesis title page (viewed July 17, 2006). Includes abstract. Keywords: Materials, Brick, Application. Includes bibliographical references.
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14

Tsarouchas, Dimitris. "Fibre network materials : architecture and effective linear elastic properties." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610878.

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15

LITTLE, TRAVIS SHANE. "MATERIALS MATTER: EXPLORING UNCONVENTIONAL APPLIICATIONS OF BRICK IN ARCHITECTURE." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1148267772.

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16

Guiducci, Lorenzo. "Passive biomimetic actuators : the role of material architecture." Phd thesis, Universität Potsdam, 2013. http://opus.kobv.de/ubp/volltexte/2014/7044/.

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Passive plant actuators have fascinated many researchers in the field of botany and structural biology since at least one century. Up to date, the most investigated tissue types in plant and artificial passive actuators are fibre-reinforced composites (and multilayered assemblies thereof) where stiff, almost inextensible cellulose microfibrils direct the otherwise isotropic swelling of a matrix. In addition, Nature provides examples of actuating systems based on lignified, low-swelling, cellular solids enclosing a high-swelling cellulosic phase. This is the case of the Delosperma nakurense seed capsule, in which a specialized tissue promotes the reversible opening of the capsule upon wetting. This tissue has a diamond-shaped honeycomb microstructure characterized by high geometrical anisotropy: when the cellulosic phase swells inside this constraining structure, the tissue deforms up to four times in one principal direction while maintaining its original dimension in the other. Inspired by the example of the Delosoperma nakurense, in this thesis we analyze the role of architecture of 2D cellular solids as models for natural hygromorphs. To start off, we consider a simple fluid pressure acting in the cells and try to assess the influence of several architectural parameters onto their mechanical actuation. Since internal pressurization is a configurational type of load (that is the load direction is not fixed but it “follows” the structure as it deforms) it will result in the cellular structure acquiring a “spontaneous” shape. This shape is independent of the load but just depends on the architectural characteristics of the cells making up the structure itself. Whereas regular convex tiled cellular solids (such as hexagonal, triangular or square lattices) deform isotropically upon pressurization, we show through finite element simulations that by introducing anisotropic and non-convex, reentrant tiling large expansions can be achieved in each individual cell. The influence of geometrical anisotropy onto the expansion behaviour of a diamond shaped honeycomb is assessed by FEM calculations and a Born lattice approximation. We found that anisotropic expansions (eigenstrains) comparable to those observed in the keels tissue of the Delosoperma nakurense are possible. In particular these depend on the relative contributions of bending and stretching of the beams building up the honeycomb. Moreover, by varying the walls’ Young modulus E and internal pressure p we found that both the eigenstrains and 2D elastic moduli scale with the ratio p/E. Therefore the potential of these pressurized structures as soft actuators is outlined. This approach was extended by considering several 2D cellular solids based on two types of non-convex cells. Each honeycomb is build as a lattice made of only one non-convex cell. Compared to usual honeycombs, these lattices have kinked walls between neighbouring cells which offers a hidden length scale allowing large directed deformations. By comparing the area expansion in all lattices, we were able to show that less convex cells are prone to achieve larger area expansions, but the direction in which the material expands is variable and depends on the local cell’s connectivity. This has repercussions both at the macroscopic (lattice level) and microscopic (cells level) scales. At the macroscopic scale, these non-convex lattices can experience large anisotropic (similarly to the diamond shaped honeycomb) or perfectly isotropic principal expansions, large shearing deformations or a mixed behaviour. Moreover, lattices that at the macroscopic scale expand similarly can show quite different microscopic deformation patterns that include zig-zag motions and radical changes of the initial cell shape. Depending on the lattice architecture, the microscopic deformations of the individual cells can be equal or not, so that they can build up or mutually compensate and hence give rise to the aforementioned variety of macroscopic behaviours. Interestingly, simple geometrical arguments involving the undeformed cell shape and its local connectivity enable to predict the results of the FE simulations. Motivated by the results of the simulations, we also created experimental 3D printed models of such actuating structures. When swollen, the models undergo substantial deformation with deformation patterns qualitatively following those predicted by the simulations. This work highlights how the internal architecture of a swellable cellular solid can lead to complex shape changes which may be useful in the fields of soft robotics or morphing structures.
Passive pflanzliche Aktuatoren sind bewegliche Strukturen, die eine komplexe Bewegung ohne jegliche metabolische Energiequelle erzeugen können. Diese Fähigkeit entstammt dabei der Materialverteilung mit unterschiedlicher Quellbarkeit innerhalb der Gewebsstruktur.Die bis heute am besten untersuchten Gewebearten pflanzlicher und künstlicher Passivaktuatoren sind Faserverbundwerkstoffe, in denen steife, fast undehnbare Zellulosemikrofibrillen die ansonsten isotrope Schwellung einer Matrix leiten. Darüber hinaus gibt es in der Natur Beispiele für Aktuationssysteme, wie z.B. die Delosoperma nakurense Samenkapsel, in der das Aktuatorgewebe eine Wabenstruktur aufweist, deren Zellen mit einem hochquellenden Material gefüllt sind. Dabei hat die Wabenstruktur des Gewebes eine hohe geometrische Anisotropie, so dass sich das Gewebe bei Wasseraufnahme bis zur vierfachen Länge entlang einer Hauptrichtung ausdehnt und somit die reversible Öffnung der Kapsel angetrieben wird. Inspiriert durch das Vorbild der Delosoperma nakurense, wird in der vorliegenden Arbeit die Rolle der Architektur von 2D-Zellulärmaterialien als Modell für natürliche passive Aktuatoren analysiert. Zunächst wird anhand eines einfachen Flüssigkeitsdrucks in den Zellen der Einfluss verschiedener architektonischer Parameter auf deren mechanische Betätigung untersucht. Wohingegen regelmäßige konvexe Wabenstrukturen (wie z. B. sechseckige, dreieckige oder quadratische Gitter) sich unter Druck isotropisch verformen, wird durch Finite-Elemente-Simulationen gezeigt, dass es bei anisotropen und nicht-konvexen Zellen zu großen Ausdehnungen jeder einzelnen Zelle kommt. Auch wenn nur eine einzelne Zellgeometrie betrachtet wird, können hierbei viele verschiedene Gitter entstehen. Die Ausdehnungsrichtung des Gitters ist variabel und hängt von der lokalen Konnektivität der Zellen ab. Dies hat Auswirkungen sowohl auf makroskopischer (Gitter-) als auch auf mikroskopischer (Zell-) Ebene. Auf makroskopischer Ebene erfahren diese nicht-konvexen Gitter entweder große anisotrope (ähnlich der Delosperma nakurense Samenkapsel) oder vollkommen isotrope Eigendehnungen, große Scherverformungen oder jeweilige Mischformen. Überdies können Gitter mit ähnlichem makroskopischem Verhalten gänzlich unterschiedliche mikroskopische Verformungsmuster zeigen, wie z.B. Zick-Zack-Bewegungen oder radikale Änderungen der ursprünglichen Zellform. Dies verursacht auch eine entsprechende Änderung der elastischen Eigenschaften. In Abhängigkeit der Gitterarchitektur kann es zu gleichen oder unterschiedlichen mikroskopischen Zelldeformationen kommen, die sich in Summe entweder verstärken oder ausgleichen, und somit die Vielzahl an makroskopischen Verhalten erklären. Interessanterweise lassen sich mit Hilfe einfacher geometrischer Argumente aus der nichtdeformierten Zellform und Zellkonnektivität die Ergebnisse der FE-Simulationen vorhersagen. Die Ergebnisse der Finite-Elemente-Simulationen wurden durch Laborversuche bestätigt, in denen (mit 3D-Drucktechnik gefertigte) Modellgitter ähnliches Ausdehnungsverhalten beim Quellen zeigen. Diese Arbeit zeigt auf, wie die Innenarchitektur eines quellfähigen zellulären Feststoffs zu komplexen Formänderungen führen kann, die in den Bereichen der Soft-Robotik oder bei Morphing-Strukturen angewandt werden können.
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Braggin, Greg A. "Effect of Surfactant Architecture on Conformational Transitions of Conjugated Polyelectrolytes." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1411.

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Water soluble conjugated polyelectrolytes (CPEs), which fall under the category of conductive polymers, possess numerous advantages over other conductive materials for the fabrication of electronic devices. Namely, the processing of water soluble conjugated polyelectrolytes into thin film electronic devices is much less costly as compared to the processing of inorganic materials. Moreover, the handling of conjugated polyelectrolytes can be performed in a much more environmentally friendly manner than in the processing of other conjugated polymers because conjugated polyelectrolytes are water soluble, whereas other polymers will only dissolve in toxic organic solvents. The processing of electronic devices containing inorganic constituents such as copper indium gallium selenide (CIGS), is much more expensive and poses much greater environmental risks because toxic metals may be released into landfills or waterways upon cell disposal.75 Because conjugated polyelectrolytes enjoy an assortment of advantages over other materials for the manufacturing of thin film electronic devices, there is globally vested interest in the researching of their properties. Despite the fact that CPEs can serve as efficient electron transport mediums, devices such as organic solar cells cannot realize their highest efficiencies unless the morphology of CPEs is precisely controlled. Charged surfactants can electrostatically and ionically interact with CPEs, and when introduced in specific concentrations, molar ratios, and temperature ranges, will aid in a ‘coil to rod’ transition of the CPE, wherein polymer chains undergo intramolecular transitions to obtain rigid-rod morphologies. The kinetics and thermodynamics of the ‘coil to rod’ transition are heavily dependent upon the type(s) of charged surfactant complexed with the CPE (i.e. on the surfactant architecture). By performing UV/Vis Spectroscopy and Fluorometry on dilute polymer/surfactant solutions, Polarized Optical Microscopy (POM) and Small Angle X-Ray Scattering (SAXS) on high concentration polymer/surfactant solutions, and Differential Scanning Calorimetry (DSC) and X-Ray Diffraction (XRD) on solid-state polymer/surfactant samples, the role of various surfactant architectures on the kinetics and thermodynamics of the ‘coil to rod’ transition was studied. The liquid crystalline physical properties and the extent of solid state crystallinity were also investigated. Through an analysis of the data obtained from these various techniques, it was found that the ‘coil to rod’ transition is progressively favored when the alkyl chain length of a single tailed surfactant is sequentially increased, and that as the concentration of double-tailed surfactant increases, the ‘coil to rod’ transition is negated.
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18

Zolotovsky, Katia. "Guided growth : design and computation of biologically active materials." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113925.

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Thesis: Ph. D. in Architecture: Design and Computation, Massachusetts Institute of Technology, Department of Architecture, 2017.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 122-129).
In this dissertation, I propose ways for designers and architects to engage with the material units of biological computation and fabrication, namely the living cells. Microscopic cells, the basic units of life, are bits of material with embedded computation, fabrication, and regulation mechanisms. Their genetic code in the DNA performs complex computations, allowing cells to grow, interact with their environment through exchange of matter and energy, and even produce structural materials such as cellulose. These materials are renewable, self-assembling, self-healing, and biologically active. Our rapidly growing ability to re-program living cells to produce materials they would not produce in their natural state presents future possibilities as far-reaching as growing houses from seeds. This dissertation explores synthetic biology as a computational method to program cells so as to grow biologically active materials for architecture, with the possibility of designing them for new functions, including air filtering and purification, self-repair, and photosynthesis. To realize the potential for biologically active materials, I propose a Guided Growth design process, using the cellulose-producing bacterium Gluconacetobacter xylinus as an example. The Guided Growth design process employs three scales of resolution: nano (engineered living cells), meso (biomaterials that inhabit cells), and macro (bio-computational interface): · Nano-scale, the nanometer scale of DNA design: using tools of synthetic biology, I program the behavior of bacterial cells to respond to changes in their environment and pattern their function and properties. · Meso-scale, the micro- to centimeter scale of guided material self-assembly: using tools of materials science, I develop workflows to grow, shape, harvest, and process living-non-living composite biofilms, while keeping the bacteria cells alive and biologically active. · Macro-scale, the centimeter and up scale of bio-computational interface: using tools of digital fabrication, I design and fabricate a bio-computational interface that through computationally regulated flow of nutrients, added substances, and air allows the designer to interact with the process of growth. In the Guided Growth design process, I collaborate with synthetic biologists and computational designers to integrate the rigor of scientific research and the openness of material-based explorations. This multiscale collaborative process can be further generalized to other material systems where programmed living cells act as matter-organizing agents. My experimental methodology proposes new ways of computational making in architecture, a new class of biologically active materials, and a new application domain for synthetic biology.
by Katia Zolotovsky.
Ph. D. in Architecture: Design and Computation
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19

Gerstenberger, Nanette Marie. "Historic plant materials of Tucson." Thesis, The University of Arizona, 1997. http://hdl.handle.net/10150/291741.

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The objective of this study was to create a reference of historically identifiable eras in plant use and landscape design in Tucson between 1854 and 1960. Determination of plant use eras was based on a combination of factors: (1) significant events, (2) technological advancements, (3) the number of species identified during specific time frames, (4) changes in plant collection patterns, and (5) new design trends. Five major landscape plant use eras are identified: the Anglo Settlement Era (1854-1879), the Railroad Era (1880-1899), the Post Victorian Era (1900-1917), the Post World War I and Depression Era (1918-1938), and the World War II and Suburban Expansion Era (1939-1960). Plant introduction peaked between 1900 and 1917. Following that time, tree introductions declined significantly and shrub introductions increased.
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Coelho, Marcelo. "Materials of interaction : responsive materials in the design of transformable interactive surfaces." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46577.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2008.
Includes bibliographical references (p. 94-99).
Materials that embody computational properties are reshaping the ways in which we design, interact and communicate. This thesis looks at the topic of form transformation and how to bring the programmability and versatility of digital forms into the physical world. The focus is placed on the relationship between materials, form and interaction, in particular how the behavior and properties of shape-changing materials can support the design of transformable interactive surfaces. Three design implementations are presented, each addressing a distinct subject area in the design of form transformation, namely topology, texture and permeability. Surflex is a composite that uses active and passive shape-changing materials to undergo large surface deformations. Sprout I/O implements small shape deformations and co-located input/output at a surface boundary to create a dynamic texture for communication. Shutters uses shape change to regulate a surface's permeability and control environmental exchanges between two distinct spaces. Drawing lessons from these projects, a soft mechanical alphabet and language for form transformation are derived, providing new formal possibilities for enriching human-computer interactions.
Marcelo Coelho.
S.M.
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21

Ng, Chun-yuen Ronald. "Building Material Centre." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25948799.

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Chin, Ryan C. C. 1974. "An exploration of materials and methods in manufacturing : shoreline membranes." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/65251.

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Thesis (M.Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2000.
Includes bibliographical references (p. 87-88).
This thesis is an investigation into the design methodologies and ideologies of manufacturing processes specifically related to automotive design. The conceptualization, prototyping, testing, and manufacturing of cars is a discipline that would yield exciting results if applied to architecture. The hybridization of different processes of design will raise interesting questions of how built form is conceived, designed, developed, and constructed. An essential part of this thesis research is the study of materials. After an intense investigation of the potential uses and intrinsic properties of new materials in the automotive and construction industries, a select few materials will be applied directly in the thesis. The final component of the thesis is a programmatic theme that will revolve around shoreline membranes. They provide a lightweight and flexible system of architecture for many different building types. The investigation will involve the design of a structure in which its conception, function, production, and form are the direct result of inspiration from automotive manufacturing techniques and material research.
by Ryan C.C. Chin.
M.Arch.
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SUMMERS, JOSHUA CRAIG. "MATERIALS AND CRAFT IN ARCHITECTURE- A WORKSHOP FOR THE STUDY OF CRAFT." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054816376.

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Wu, Dongping. "Novel concepts for advanced CMOS : Materials, process and device architecture." Doctoral thesis, KTH, Microelectronics and Information Technology, IMIT, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3805.

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The continuous and aggressive dimensional miniaturization ofthe conventional complementary-metal-oxide semiconductor (CMOS)architecture has been the main impetus for the vast growth ofIC industry over the past decades. As the CMOS downscalingapproaches the fundamental limits, unconventional materials andnovel device architectures are required in order to guaranteethe ultimate scaling in device dimensions and maintain theperformance gain expected from the scaling. This thesisinvestigates both unconventional materials for the gate stackand the channel and a novel notched-gate device architecture,with the emphasis on the challenging issues in processintegration.

High-κ gate dielectrics will become indispensable forCMOS technology beyond the 65-nm technology node in order toachieve a small equivalent oxide thickness (EOT) whilemaintaining a low gate leakage current. HfO2and Al2O3as well as their mixtures are investigated assubstitutes for the traditionally used SiO2in our MOS transistors. These high-κ filmsare deposited by means of atomic layer deposition (ALD) for anexcellent control of film composition, thickness, uniformityand conformality. Surface treatments prior to ALD are found tohave a crucial influence on the growth of the high-κdielectrics and the performance of the resultant transistors.Alternative gate materials such as TiN and poly-SiGe are alsostudied. The challenging issues encountered in processintegration of the TiN or poly-SiGe with the high-k are furtherelaborated. Transistors with TiN or poly-SiGe/high-k gate stackare successfully fabricated and characterized. Furthermore,proof-of-concept strained-SiGe surface-channel pMOSFETs withALD high-κ dielectrics are demonstrated. The pMOSFETs witha strained SiGe channel exhibit a higher hole mobility than theuniversal hole mobility in Si. A new procedure for extractionof carrier mobility in the presence of a high density ofinterface states found in MOSFETs with high-κ dielectricsis developed.

A notched-gate architecture aiming at reducing the parasiticcapacitance of a MOSFET is studied. The notched gate is usuallyreferred to as a local thickness increase of the gatedielectric at the feet of the gate above the source/drainextensions. Two-dimensional simulations are carried out toinvestigate the influence of the notched gate on the static anddynamic characteristics of MOSFETs. MOSFETs with optimizednotch profile exhibit a substantial enhancement in the dynamiccharacteristics with a negligible effect on the staticcharacteristics. Notched-gate MOSFETs are also experimentallyimplemented with the integration of a high-κ gatedielectric and a poly-SiGe/TiN bi-layer gate electrode.

Key words:CMOS technology, MOSFET, high-κ, gatedielectric, ALD, surface pre-treatment, metal gate, poly-SiGe,strained SiGe, surface-channel, buried-channel, notchedgate.

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Borchardt, Lars. "Carbide and Carbide-Derived Carbon Materials with Hierarchical Pore Architecture." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-107865.

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This thesis addressed the development of new porous carbides and carbide-derived carbons; in particular materials based on silicon-, boron-, tungsten-, and titanium carbide. Therefore, different hard- and soft-templating approaches were applied and the materials were additionally functionalized with catalytic active components and shaped into nm- and mm-sized spherical particles.
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Cooke, Timothy Graham. "Lightweight concrete : investigations into the production of variable density cellular materials." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78505.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 123-127).
This research focuses on the intersection between material composition and form in the development of a new type of concrete. As concrete is the most widely used building material in the world, innovation in this material has more potential to effect change in our built environment than innovation in any other. With the objective of minimizing raw material consumption and energy use, this work attempts to develop methods for creating a cellular lightweight concrete with variable density that can be cured at room temperature. Most aerated concretes traditionally require high temperature and high pressure curing; the goal of this research is to create a lower embodied energy product through the use of room temperature curing, while at the same time maximizing performance through variation of the density of the material through its section-essentially locating stronger material where it is needed. This more durable and versatile concrete product will be able to compete with traditional lightweight concretes, which provide benefits such as insulation, as well as normal-weight concrete, which is harder and stronger. The research aims to capitalize on the inherent heterogeneity of the material by producing a substance whose internal properties can be varied based on the needs of a specific part of a building. I am interested in replacing the concept of the "assembly" of materials to gain a desired function with a more unitary concept: the manipulation of a single material to meet a building's multiple needs. A desired outcome of the work is to reconceive how we put buildings together, not as assemblies of discrete elements but as monolithic yet malleable wholes.
by Timothy Graham Cooke.
S.M.
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Ward, Jonathan (Jonathan Daniel). "Additive assembly of digital materials." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62084.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 43-44).
This thesis develops the use of additive assembly of press-fit digital materials as a new rapid-prototyping process. Digital materials consist of a finite set of parts that have discrete connections and occupy discrete space. Part geometries were designed and fabricated at different scales from different materials, including hierarchical voxels which connect across different scales. All parts were designed to be vertically assembled with top and bottom connections. Digital materials are discussed as a new way for building physically reconfigurable, multi-material 3D structures. The parts were designed with press-fit connectors to build reversible assemblies to take full advantage of reuse and recycling. This document starts by describing some current technologies in the fields of rapid-prototyping and personal fabrication. The concept for a press-fit digital materials is defined and explained. Many part designs are documented, including conductor and insulator parts for SOIC-pitch 3D circuits and hierarchical assemblies. This thesis concludes with the design and concept for assembly machine to automate building functional digital materials.
by Jonathan Ward.
S.M.
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Popescu, George A. "Digital materials for digital fabrication." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/41754.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2007.
Includes bibliographical references (leaves 50-51).
This thesis introduces digital materials by analogy with digital computation and digital communications. Traditional fabrication techniques include pick-and-place, roll-to-roll, molding, patterning and more. Current research in fabrication includes algorithmic assembly [3], programmed assembly[9], self-assembly[1,2], assembly by folding [4] as well as guided self-assembly [2]. While these research areas are studying means of fabrication, here we introduce the study of the digital materials they assemble. Moreover we present a new type of three-dimensional digital printer for use with functional digital materials. Most importantly, the digital materials are shown to be tuneable; the code describing a digital material allows one to predict and adjust the properties of the material itself. In the same 'way digital communications and computation are discrete in the code space, digital fabrication is discrete in the physical space. Just as digital communications enabled cheap long-distance communications and digital computation enabled cheap,universal and efficient computers, digital fabrication enables cheap, efficient and universal fabrication. Building digitally will reduce the complexity of the assembler and can produce a wider variety of objects for a smaller cost.
by George A. Popescu.
S.M.
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Kua, Harn Wei 1971. "The design of effective policies for the promotion of sustainable construction materials." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37266.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Architecture, 2006.
Includes bibliographical references.
This research explores the associated effects of policy tools employed to promote sustainable building materials. By comparing the original motivations and intended effects of these policies and their actual outcome, and subsequently understanding the reasons behind any disparities between them, we suggest ways by which future policy planning can be improved. This research is based on seven detailed case studies. They cover the applications of virgin material taxes in Denmark and Sweden, forest management and biodiversity legislations in United States' Northwest and its coupling economic adjustment initiative, legislations/public outreach/demonstration projects on the use of substitute fuels for cement manufacturing in United States and the United Kingdom, and economic incentives to promote afforestation/reforestation in Chile. Each of these cases is attended by negative, unanticipated outcomes. By analyzing these outcomes, we observe that a negative and unanticipated policy outcome occurs when a sustainability indicator/issue is either completely ignored by policymakers, or the policymakers fail to identify intrinsic but inconspicuous links between seemingly disparate indicators.
(cont.) These unexpected outcomes can be reduced, or avoided, if policymakers conceptualize policies more broadly, for which purpose we propose the concept of integrated policymaking. This concept promotes the idea of co-addressing, or even co-optimizing, a wide range of eleven to sixteen sustainability indicators covering all the three domains of sustainability - economy, environment and employment. Furthermore, in doing so, policymakers must promote interactions among the different levels of governmental agencies (i.e. horizontal and vertical integration) and between the governmental and non-governmental stakeholder groups (i.e. time horizon integration and integration across stakeholder groups). We emphasize the significance of five different but interrelated types of feedback loops in supporting these different types and goals of integration. Finally, we applied this concept to the seven cases and proposed a series of innovative integrated policy strategies to address the negative, unanticipated outcomes observed.
by Harn Wei Kua.
Ph.D.
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30

Pohl, Alexander. "Solid-state architecture : from simple metal cyanides to open-framework materials." Thesis, University of Reading, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500552.

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31

Lorenzon, Marta. "Earthen architecture in Bronze Age Crete : from raw materials to construction." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25931.

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Earthen architecture is a widespread phenomenon, both in the present day and the past. It is one of the most impressive expressions of the human ability to create a unique built environment from modest natural resources. Archaeological research has shown that mud brick manufacturing techniques can inform on community practices in relation to architecture. New geoarchaeological and microarchaeological approaches provide information on the source of raw materials in conjunction with the mode of manufacture and construction. The aim of this study is to investigate Minoan earthen architecture using mud bricks as an integral part of material culture in order to reconstruct the technological process of mud brick manufacture and to provide fresh insights about architectural craft specialisation in Bronze Age Crete. In order to fulfil this goal, more than 10,000 mud bricks are studied both macroscopically, by investigating broad trends in manufacture and construction form, and microscopically, by considering the finer details of raw material procurement and building performance through XRF, XRD and thin section petrography. This research places the geoarchaeological analysis of mud brick architecture within a specific multidisciplinary theoretical framework that combines archaeological data, architectural analysis and ethnoarchaeology. The analyses clarify how raw materials were selected and used within and between buildings. They also shed light on broader temporal changes, such as increasing technological sophistication, the type of labour force, if centrally organised or household based, and its impact on architecture. Earthen building forms and materials are the result of assimilation between the natural and built environment. Therefore the exploitation of specific raw materials sheds light on community strategies of adaptation to natural resources and their transformation into material culture. Research results indicate that mud brick manufacture was a standardised activity during the Minoan period with evidence of craft specialisation in raw source material selection, production and construction.
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Canarslan, Ozgecan. "Evaluation Indicators For Selection Of Sustainable Building Materials." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12609144/index.pdf.

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Environmental issues have gained importance due to global environmental threat, such as depletion of energy resources and the impacts of climate change. The building sector is responsible for almost half of the impacts on the environment. Hence, this study focuses on the importance of environmental impacts of building materials. In this regard, firstly, sustainability indicators for building materials were determined and the environmental impacts of selected building materials were studied. Then, the evaluation system BREEAM and the evaluation software BEES were selected and used to evaluate one block of bachelor flats and one of housing units in ODTUKENT, which is located in the Middle East Technical University campus in Ankara, Turkey. Building materials used for the construction of walls, floors and roofs were evaluated according to the indicators accepted by BREEAM and BEES. The results for both units were compared and it was seen that the block of bachelor flats takes lower ratings than the triplex unit for BREEAM and also lower values for BEES. Therefore, the block of bachelor flats has less environmental impact than the triplex unit. While evaluating the materials an exact match for all the materials used in the case buildings could not be found in these tools. Hence, it was not possible to exact results for these materials. In this regard, countries should determine their own evaluation indicators and develop their evaluation systems.
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Baiche, Bousmaha. "Contemporary rural housing built with improved earth-based materials in Algeria." Thesis, Oxford Brookes University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334407.

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Cheung, Kenneth Chun-Wai. "Digital cellular solids : reconfigurable composite materials." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78199.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 115-119).
Digital materials are comprised of a small number of types of discrete physical building blocks, which assemble to form constructions that meet the versatility and scalability of digital computation and communication systems. This work seeks to demonstrate the applicability of a digital material approach in designing new cellular materials and methods for assembly of structures with static reconfigurability. The science of cellular solids has enabled the widespread use of lightweight materials to meet important engineering needs, such as passive energy absorption, but they are not in widespread use for structural applications, perhaps due to a large gap between the strength and stiffness to weight ratios of popular classical solids, and the performance of known lightweight cellular materials that are produced from the same constituent material. The engineering of fiber reinforced composite materials has enabled structures with large reductions in weight for given strength and stiffness targets, but at very high design and processing costs, and many challenges producing mechanical interfaces (joints). Digital materials promise scalable methods of producing functional things with reconfigurable sets of discrete and compatible parts, but the presence of many reversible connections raises questions about the performance of the end result. Digital Cellular Solids are cellular solids that exhibit improvements in relative stiffness and strength compared to relative density, over current practices for producing lightweight materials. This is accomplished by assembling lattice geometries that perform better than any that we know how to make with traditional methods. When implemented with fiber composites, the result is not only stiffer and stronger than any previously known ultra-light material, but it presents a new scalable and flexible workflow for applying fiber composites to engineering problems.
by Kenneth C. Cheung.
Ph.D.
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35

Zhang, Jinsong 1975. "Modeling VOC sorption of building materials and its impact on indoor air quality." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/71107.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2001.
Includes bibliographical references (p. 158-162).
Sorption of volatile organic compounds (VOCs) by building materials can have significant effect on the indoor VOC concentration levels and indoor air quality in buildings. The objective of this study was to investigate experimentally the effects of environmental conditions (temperature, humidity and air velocity) on the sorption rate and capacity of three typical types of building materials (carpet, ceiling tile and painted drywall), and to evaluate existing sorption models with experimental data. A small-scale chamber test system has been developed in this study to conduct sorption tests under different environmental conditions. The sorption data collected were analyzed by three different analysis methods: the integration method, the linear Langmuir model method and the diffusion model method. The results of the integration method indicated that for the painted drywall, the differences among different environmental conditions were so small compared with the experimental uncertainties that no statistically significant environmental effect could be observed at 95% confidence level. The sorption of VOCs on ceiling tile decreased with the increase of the air velocity and temperature, but did not change significantly with the relative humidity. The sink strength of benzaldehyde under high humidity was much stronger than any other conditions. The sorption of VOCs on carpet appeared to be a diffusion-controlled process. With the increase of temperature, the diffusion coefficient increased while the partition coefficient decreased. A higher air velocity increased the sink capacity of dodecane on carpet. The relative humidity had no significant effect on the sorption of VOCs on carpet. Based on the model evaluation conducted in this study, the linear Langmuir model appeared to be suitable for painted drywall and ceiling tile while the diffusion model is more suitable for carpet.
by Jinsong Zhang.
S.M.
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Huang, Yinwu. "The logic of vernacular materials the relationship of the vernacular materials of wood, earth, stone and lime in Shaxi's vernacular construction system /." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B42182979.

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Novisk, Jason. "Devised architecture : revitalizing the mundane." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003146.

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Slevin, Jill Lori. "Materials and Imagination: A Building of Fire and Water." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34519.

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An exploration of the relationship between man and the elements, fire and water, this project futher develops these ideas by way of the imagination. Man's attempt to form further connections with these elements is often seen as an act of humanization. It is, however, these investigations that allow for such intimate relationships between humans and elements.

This project is a fire station that demonstrates the impact fire and water has on man as well as the impact man has on fire and water. Whether the gentle flame of a candle or the ferocious explosions of a volcano, the clear flowing stream or the passionate throes of the ocean, man finds both companionship and challenge in the elements. Man's manipulation of both fire and water enable materials to extend the limit of their properties. It is this control over elements that enables architecture.
Master of Architecture

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39

Shaw, John Henry. "Effects of Fiber Architecture on Damage and Failure in C/SiC Composites." Thesis, University of California, Santa Barbara, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3682976.

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Carbon-fiber/SiC-matrix composites are under development for applications in hypersonic vehicles due to their exceptional capabilities at high temperatures. As a subset of these materials, textile-based composites are of particular interest because they offer the possibility of accommodating complex geometries and features in engineering components. Among the numerous obstacles hindering the widespread adoption of these composites, two are addressed in the present work: (i) the incomplete understanding of the influence of textile architecture on thermoelastic properties, damage initiation and failure, and (ii) the lack of robust computational tools for predicting their thermomechanical performance at the appropriate length scales. Accordingly, an experimental study is performed of the thermal and mechanical properties of several prototypical textile C/SiC composites with various fiber architectures. In turn, the experimental results are used to guide the development of computational tools for predicting composite response that explicitly account for fiber architecture.

Textile architecture is found to influence composite response at four length-scales: the panel, the coupon, the tow, and the sub-tow. At the panel scale, distortions to the architecture introduced during weaving or handling of the fabric influence the packing density and the relative rotation of tows. Even when large distortions are intentionally introduced their influence on mechanical response is minimal. At the coupon scale the tow architecture has the largest effects on composite mechanical response. Young's modulus, ultimate tensile strength, and strain to failure are all influenced. Changes in each of these are a function of tow shape, tow anisotropy, and the degree of constraint provided by the matrix. At the tow scale, architecture effects give rise to heterogeneity in measured surface strains under both tensile and thermal loading. Methods for the calibration of tow-scale elastic and thermoelastic properties were developed to enable simulation of these effects with a geometrically-accurate virtual model. Virtual tensile and thermal tests using this model have indicated that interaction between tows has an important influence on local strains. At the sub-tow scale, architecture effects influence the location of matrix cracking. Simulations of the cooling cycle following matrix processing predict that matrix cracks should develop in the matrix above underlying tows due to thermal expansion mismatch between the tows and the matrix. This is consistent with experimental observations. Two methods are presented to extend the virtual tests to explicitly simulate the onset and evolution of these cracks.

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Minardi, Lisa M. "Of massive stones and durable materials architecture and community in eighteenth-century Trappe, Pennsylvania /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 1.51 Mb., 132 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1435853.

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黃印武 and Yinwu Huang. "The logic of vernacular materials: the relationship of the vernacular materials of wood, earth, stone andlime in Shaxi's vernacular construction system." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B42182979.

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42

Turan, Irmak. "From sink to stock : the potential for recycling materials from the existing built environment." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106425.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Architecture, 2016.
"June 2016." Cataloged from PDF version of thesis.
Includes bibliographical references (pages 88-93).
This thesis examines the prospect for new local recycling schemes for concrete and masonry waste within an existing urban environment. Using Lisbon, Portugal as a case study, I propose three context-specific material recycling scenarios to make use of mineral construction waste generated as city's aging residential building stock is replaced over the next 30 years. The objective of the work is to explore whether the existing stock, as it is overturned, can feed the future built environment and to what degree. What happens to construction waste when obsolete buildings are demolished? In the case of Lisbon, most of it is used as backfill or disposed in landfill. Little of the mineral waste's material value is recovered. Nonetheless, the urban built environment maintains the alluring prospect of being a source for our impending resource needs. The concept of urban mining and the circular economy movement bolster this proposition as a path towards more efficient, localized resource use within cities. I compare the three recycling proposals, along with standard landfill disposal, in terms of greenhouse gas emissions, land use, and cost. The results show that from both an environmental and economic standpoint, recycling is not always the optimal solution. The impacts depend not only on the recycling processes and end uses, but also the avoided and added burdens consequent to changes in the existing system. Through this analysis, I identify both the limiting factors and potential opportunities for improvement in the current paradigm of material use and reuse in construction, in Lisbon and beyond.
by Irmak Turan.
S.M.
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Van, den Berg Anton. "Experiencing the middle : an investigation into the experiential qualities of site, space and materials." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/17483.

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My architectural thesis investigation stems from an interest in the materiality of architecture and the "life-giving" characteristics that materials can have in capturing the character or essence of a place. As this interest has developed, I have simultaneously developed an appreciation for the phenomenological and sensorial opportunities and possibilities that lie within the nature of a site and how these opportunities can be utilized to enhance the experience of the site through architecture. Each site contains quantitative phenomena, but also contains more ethereal phenomena such as 'feelings' and emotions, which often leave a longer-lasting impression and spiritual connection to a place, rather than a mere formal recognition. For example, being within a cool, dense and dark forest; with tall and towering trees above; with old, crunching leaves below or out in the soft open field, with the warm sun beaming down and one or two clouds slowly drifting overhead, on the same piece of mountain side, will have vastly different sensorial characteristics and moments, whilst still being connected to a greater site, which carries its own qualitative elements. These feelings and emotional connections to the site are dynamic and temporal, as they will also fluctuate according to day/ night or weather/ season. I find the process of approaching design through this conceptual filter extremely exciting, as one is constantly thinking about and engaging with the body of the user. It is important to find, through processes of 'experiential mapping', specific characteristics and moments, which inform the programming of a site. Questions are constantly asked as to what the body will See; Smell; Hear; Taste; Touch or Feel and Think; as the user moves through the site and space. Architecture is therefore given back to the body, contrasting the formal fascination and abstraction which occurred during the Modernist movement. How does one then capture these less tangible phenomena architecturally and engage the senses of the user? Spatially these opportunities can be materialized through the amalgamation of, and complementing and contrasting expressions of site specific phenomena such as: - textures; - light / shadows; - cool/ warmth; - sound'; - materials; - enclosures / voids-static / dynamic ; - flow of contours;
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Luo, Jiancheng. "Self-Assembly of Polyoxometalate (POM)-Containing Hybrids: From Amphiphilicity to Architecture." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1428001115.

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Wojno, Alexandra. "Senses of Darkness: An Exploration of Blind Navigation Through Architecture." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/52628.

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Based on the principle of sequential lessons for teaching orienteering, the program is a center that teaches navigation to people who are blind, located in the remains of the Chesapeake and Ohio Canal in Harpers Ferry, West Virginia. Through the use of materials, light, and this program of sequential patterns, the architecture focuses on heightening the working senses of the occupants using the progression throughout the building. This connection of the body and mind to architecture creates an awareness of space, unifying a perception of place, while bridging the old life to the new.
Master of Architecture
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46

Vicario, Niko (Nicholas Klein). "Import/export : raw materials, hemispheric expertise, and the making of Latin American art, 1933-1945." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101545.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Architecture, 2015.
Cataloged from PDF version of thesis. Illustrations on pages 242 to 288 redacted.
Includes bibliographical references (pages 290-313).
Historians have tended to characterize Latin American art either as a self-evident term or as a category designated by U.S. institutions. This dissertation argues instead that artists from the region were agents in shaping this emerging field through their selective cooperation with, and resistance to, the United States' Good Neighbor Policy networks. Artists, haunted by criticisms that art in Latin America was a "cultural import" from Europe, engaged with a U.S. market that treated their art as a source of "exportable prestige." This dissertation analyzes the entanglement of this cultural discourse of import/export with the mechanisms of commerce as a new paradigm for thinking about Latin American art. The period that is the focus of this dissertation-l 933 to 1945-represented a transitional era between Latin America's "export age" (1870-1930) and postwar modernization, import substitution industrialization, and the birth of what would come to be known as developmentalism (desarrollismo). Framed by the Great Depression and by World War II, this "long decade" was coeval with the Good Neighbor Policy, in which the nations of the Americas pledged non-intervention in the hemisphere and more intimate commercial and cultural ties. Through case-studies of Candido Portinari, David Alfaro Siqueiros, Joaquin Torres-Garcia, and Nelson Rockefeller, the dissertation places special emphasis upon the relationship between materiality, raw materials, and import substitution industrialization in analyzing works of art and the networks in which they were mobile.
by Niko Vicario.
Ph. D.
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47

Legault, Réjean. "L'appareil de l'architecture moderne : new materials and architectural modernity in France, 1889-1934." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10774.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Architecture and Planning, 1997.
Includes bibliographical references (v. 3, leaves 470-517).
This dissertation is an historical inquiry into the role played by new building materials in the formation of architectural modernism in France. It proceeds on the theoretical assumption that a "material" is not a technical given -- a securely defined entity in the physical and linguistic senses -- but an architectural construct whose "inherent properties" are a matter of interpretation. It suggests that within a specific architectural culture, the conceptions and uses of a material are defined by concerns that are not only constructional but involve architectural doctrines, building practices, aesthetic projects, and cultural strategies. Since the publication of Sigfried Giedion's Bauen in Frankreich. Bauen in Eisen. Bauen in Eisenbeton (1928), reinforced concrete has been commonly accepted as the common denominator of French modernism. The dissertation questions this interpretive assumption, focusing on the changing conceptions of the material as an index of transformations in French architecture and architectural culture. It covers a period that spans from the Universal Exhibition of 1889 to the early 1930s, a period which saw the development of reinforced concrete in French architecture, from its emergence within architectural discourses to its inscription within early modernist historiography. Through a close examination of contemporary books and periodicals, unpublished sources, and graphic documents, the dissertation explores the theories and works that framed the critical relationship of new material to French modernism. Inaugurated with the late nineteenth-century demise of metal as the leading material in architectural theory, the preeminence of reinforced concrete in French architecture was marked by the dispersion of rationalist tenets into competing architectural programs. The First World War was a pivotal event in this process. Of principal importance were the positions of Auguste Perret and Le Corbusier. While Perret insisted on continuity with prewar practices, emphasizing the role of craft production, Le Corbusier embraced the rupture brought about by the societe machinique, shifting towards the idea of industrialized construction. These positions were key to the technical and aesthetic definition of the modem house, from the function of the concrete frame to the nature of external revetments. They also led the way to the cultural and ideological debates that ensued on the nationality of the material and the sources of modem architecture. In the late 1920s the return of metal merely underscored the "rhetoric of materials" in the definition of French modernism.
by Réjean Legault.
Ph.D.
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48

Miller, Paul. "Continuity and change in Etruscan domestic architecture : a study of building techniques and materials from 800-500 BC." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/11708.

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Abstract:
Etruscan architecture underwent various changes between the later Iron Age and the Archaic period (c. 800-500 BC), as seen in the evidence from several sites. These changes affected the design and style of domestic architecture as well as the use of raw materials and construction techniques. However, based on a supposed linear progression from inferior to superior building materials, explanations and interpretations often portray an architectural transition in Etruria from ‘prehistoric’ to ‘historic’ building types. This perspective has encouraged a rather deterministic, overly simplified and inequitable view of the causes of change in which the replacement of traditional materials with new ones is thought to have been the main factor. This thesis aims to reconsider the nature of architectural changes in this period by focussing on the building materials and techniques used in the construction of domestic structures. Through a process of identification and interpretation using comparative analysis and an approach based on the chaîne opératoire perspective, changes in building materials and techniques are examined, with special reference to four key sites: San Giovenale, Acquarossa, Poggio Civitate (Murlo) and Lago dell’Accesa. It is argued that changes occurred in neither a synchronous nor a linear way, but separately and at irregular intervals. In this thesis, they are interpreted as resulting mainly from multigenerational habitual changes, reflecting the relationship between human behaviour and the built and natural environments, rather than choices between old and new materials. Moreover, despite some innovations, certain traditional building techniques and their associated materials continued into the Archaic period, indicating that Etruscan domestic architecture did not undergo a complete transformation, as sometimes asserted or implied in other works. This study of building techniques and materials, while not rejecting the widely held view of a significant Etruscan architectural transition, argues for a more nuanced reading of the evidence and greater recognition of the nature of behavioural change during the period in question.
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49

Stauffer, Erica F. "Reinterpreting Skins and Systems: Integrating Smart Materials with Traditional Construction." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337715982.

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50

Charlson, Joseph Arons. "Straw insulation materials to address heating fuel requirements, thermal comfort, and natural resource depletion in developing regions." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/65055.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 1997.
"February 1997."
Includes bibliographical references (p. 252-253).
In modem society, major stresses are placed on the natural environment in an attempt to make the location comfortable for the human occupants. For many developing regions with cold winters such as northern Pakistan, new building construction has been driven by structural and economic criteria. Thermal comfort can be improved, heating fuel requirements can be reduced, and degradation of the natural environment can be mitigated by improving the thermal performance of these buildings. This thesis presents strong evidence for the benefits of thermal insulation and presents an optimal solution for producing that insulation in a sustainable and cost-competitive manner. Using Polymeric Methylene Diisocyanate as a binder, we were able to develop a formula for low density, structurally sound, straw based insulation board. The fabrication process involves the spraying of isocyanate onto an agricultural furnish of mixed fiber lengths in a rotating drum. The process appears to be one that could be used in developing regions. It is likely that this board can be manufactured well below the cost of competing insulation board products on a unit thermal resistance basis. Forty-one experimental boards were fabricated. The thermal, structural, and economic characteristics of these boards have been tested and analyzed. A formula has been developed for an optimized solution based on binder load, fiber size concentrations, density, and economic cost. The optimal boards meet or exceed all of our product design specifications. The optimal insulation placement scenarios for community-built school buildings are explored through the use of a dynamic building thermal modeling software, SERI-RES. The work described in this thesis provides a strong foundation for moving ahead and improving the thermal performance of the schools. Installation of insulation will improve thermal comfort in schools that continue to be unheated or under-heated. For those schools that are more fully heated, insulation will reduce fuel use at no penalty in thermal comfort. Improved thermal comfort will extend the use of schools in winter and payback periods are of reasonable duration, from two to four years for heated schools.
by Joseph Arons Charlson.
S.M.
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