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Dissertations / Theses on the topic 'Microstructure of materials'

Author: Grafiati

Published: 28 May 2022

Last updated: 18 July 2025

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1

Parrod, Perrine. "A Lattice Model for Fibrous Materials." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/ParrodP2002.pdf.

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2

Haubensak, Frederick G. (Frederick George). "Microstructure design of porous brittle materials." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/26876.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1994.<br>Includes bibliographical references (leaves 214-223).<br>by Frederick George Haubensak.<br>Ph.D.

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3

Cordero, Zachary C. (Zachary Copoulos). "Microstructure design of mechanically alloyed materials." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101560.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 107-120).<br>Nanocrystalline metals have exceptional mechanical properties that make them attractive for structural applications. However, these materials' properties tend to degrade due to grain growth when they are exposed to high temperatures; this makes producing bulk, nanocrystalline components particularly difficult as the most promising synthesis methods involve high temperature densification

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4

Ye, Yueping. "Microstructure and properties of epoxy/halloysite nanocomposite /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?MECH%202006%20YE.

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5

Fan, Zhongyun. "Microstructure and mechanical properties of multiphase materials." Thesis, University of Surrey, 1993. http://epubs.surrey.ac.uk/776187/.

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A systematic method for quantitative characterisation of the topological properties of two-phase materials has been developed, which offers an effective way for the characterisation of twophase materials. In particular, a topological transformation has been proposed, which allows a two-phase microstructure with any grain size, grain shape and phase distribution to be transformed into a three-microstructural-element body (3-E body). It has been shown that the transformed 3·E body is mechanically equivalent along the aligned direction with the original microstructure. The Hall·Petch relation dev

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6

Donatus, Uyime. "Corrosion protection and microstructure of dissimilar materials." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-and-microstructure-of-dissimilar-materials(b419af19-3459-4218-9aff-b1b857a36cb4).html.

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Corrosion Protection and Microstructure of Dissimilar Materials. A thesis submitted to The University of Manchester for the degree of Doctor of Philosophy by Uyime, Donatus on the 30th of July, 2015.Investigations on the micro- and macro-galvanic corrosion mechanisms in un-coupled AA2024-T3 alloys, AA2024-T3 coupled with mild steel (with and without the influence of cadmium and under varying solution temperatures), dissimilar friction stir welds of AA5083-O and AA6082-T6 alloys and a friction stir welded AA7018 alloy have been carried out. Selected methods of preventing and / or minimising the

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7

Stojakovic, Dejan Doherty R. D. Kalidindi Surya. "Microstructure evolution in deformed and recrystallized electrical steel /." Philadelphia, Pa. : Drexel University, 2008. http://hdl.handle.net/1860/2728.

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8

García, Muñoz Ramiro Edwin 1972. "Modeling effects of microstructure for electrically active materials." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29967.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2003.<br>Includes bibliographical references (leaves 141-150).<br>A theoretical framework is proposed for the description of multifunctional material properties. The focus of this theory is on deriving equilibrium and kinetic equations for electrically active materials, particularly for rechargeable lithium-ion batteries and piezoelectric and electrostrictive microstructures. In both cases, the finite element method is applied to account for the effects of microstructure. Other derived equations

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9

Zhang, Jie. "Microstructure study of cementitious materials using resistivity measurement /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202008%20ZHANG.

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10

Singh, Harpreet. "Computer simulations of realistic microstructures implications for simulation-based materials design/." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/22564.

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Thesis (Ph. D.)--Materials Science and Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Dr. Arun Gokhale; Committee Member: Dr. Hamid Garmestani; Committee Member: Dr. Karl Jacob; Committee Member: Dr. Meilin Liu; Committee Member: Dr. Steve Johnson.

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11

Fergani, Omar. "Materials-affected manufacturing in precision machining." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53103.

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The influence of different microstructural attributes on the material properties such strength, hardness, residual stress or other physical properties are very well understood. During the manufacturing of mechanical parts utilized in important industries such as energy, aerospace or biomedical, the effect of the processing in term of thermal and mechanical loading is very important as it is directly influencing the microstructure evolution and the properties. The understanding of how the manufacturing process such as high precision machining will affect first the microstructure and therefore t

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12

Cho, Jae-Young 1970. "Texture and microstructure in copper damascene interconnects." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85141.

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Copper has been recently used as an interconnecting material since it has high conductivity and good electromigration failure resistance. Recent studies show the close relationship between texture and reliability of Cu damascene interconnects. However, textural and microstructural evolutions of Cu damascene interconnects as function of substrate texture, current density, line width and annealing process are still not well understood.<br>At first, to understand the influence of substrate texture and electroplating conditions on the texture and surface morphology of Cu electrodeposits, th

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13

Patel, Hiteshkumar H. "Porosity, microstructure and properties of cement paste." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/47603.

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14

Maligno, Angelo Rosario. "Finite element investigations on the microstructure of composite materials." Thesis, University of Nottingham, 2008. http://eprints.nottingham.ac.uk/10476/.

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This thesis describes the investigation and development of damage modelling for composites materials at their micro-scale (e.g. fibre, matrix). A damage model for elastic materials, based on a "local" damage approach, has been introduced to predict failure onset and simulate the post-failure behaviour of unidirectional threedimensional representative volume elements (RVE) or unit cells with hexagonal distribution of the fibres over the cross section. The damage model consists of three parts: an elastic model, a failure criterion and the post-failure behaviour. Modifications of von Mises criter

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15

張艷蕾 and Yim-lui Cheung. "Microstructure studies of various oxide materials using electron microscopy." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31227260.

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16

Pouryazdi, Mohammad Reza Nasseri. "The sintering, microstructure and properties of permanent magnet materials." Thesis, University of Leeds, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305744.

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17

Wilson, James Alexander. "The microstructure of mechanically alloyed Ti-based aerospace materials." Thesis, University of Bristol, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297971.

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18

Abbas, Ali. "The microstructure of thin film cadmium telluride photovoltaic materials." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16389.

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In this work cadmium telluride thin film photovoltaic devices have successfully been produced using a novel closed-field magnetron sputtering technique. This technique offers the possibility of producing cells in an all-in-one vacuum process with the potential to provide a new lower cost production route. The sputtered cadmium telluride layers were characterised in detail using a range of advanced microscopy based techniques both in the as deposited and after the cadmium chloride treated state, a treatment that is necessary to produce a working cell. In the as deposited condition the cadmium t

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19

Shah, Niyati S. "Implementing Machine Learning Algorithms for Identifying Microstructure of Materials." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10837912.

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<p>Alloys of different materials are extensively used in many fields of our day-to-day life. Several studies are performed at a microscopic level to analyze the properties of such alloys. Manually evaluating these microscopic structures (microstructures) can be time-consuming. This thesis attempts to build different models that can automate the identification of an alloy from its microstructure. All the models were developed, with various supervised and unsupervised machine learning algorithms, and results of all the models were compared. The best accuracy of 92.01 ? 0.54% and 94.31 ? 0.59% wa

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20

Shames, Samuel W. L. (Samuel William Linder). "Modeling trabecular microstructure evolution via genetic algorithm." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/89981.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, June 2014.<br>Cataloged from PDF version of thesis. "May 2013."<br>Includes bibliographical references (pages 86-87).<br>Connecting structure to properties, and optimizing properties by controlling structure is one of the fundamental goals of materials science and engineering. No where is this connection more apparent than with biomaterials, whose unparalleled properties are the result of the evolution via cumulative selection of highly specialized structures. Beyond biomaterials, cumulative s

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21

Rolland, Matthieu 1972. "Spray forming, droplet microstructure and impingement behavior." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/39995.

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22

Song, Kyung-min. "Understanding microstructure and water transport properties of porous materials : application to gypsum-based materials." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609917.

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23

Masoumi, Mohsen. "Microstructure and texture studies on magnesium sheet alloys." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104722.

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The AZ3, the most common Mg sheet alloy, is currently produced by hot rolling of the DC cast ingot. Mg wrought alloys, in general have limited formability due to hexagonal close-packed structure and preferred orientation (texture). In order to improve magnesium sheet formability, a good understanding of microstructure and texture evolution in twin-roll casting is necessary. The objectives of this research are to study the microstructural and texture evolution in twin-roll cast AZ31 Mg sheet alloy and to develop/modify alloy compositions with improved mechanical properties (weakened texture).

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24

Sun, Hongqing. "Microstructure Evolution of Bulk Metallic Glasses via Laser Processing." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1287025216.

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25

Masindi, Rabelani Rofhiwa. "Microstructure and texture development in AISI430 ferritic stainless steel." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25436.

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AISI 430 ferritic stainless steel (FSS) is the most widely used FSS alloy due to good resistance to stress corrosion cracking. Owing to the chemical composition range, AISI 430 alloys undergo a partial phase transformation of ferrite to austenite when subjected to hot rolling temperatures. Consequently, the alloys consist of ferrite and austenite during processing. The presence of austenite and ferrite influences the microstructure evolution and texture development during hot rolling and subsequent annealing heat treatments. Two AISI 430 FSS heats of varying austenite volume fraction were used

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26

Johnson, Darius R. "Model-assisted Nondestructive Evaluation for Microstructure Quantification." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1430394815.

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27

Zubris, Melissa A. "Synthesis and microstructure of FeCo nanoalloys." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/19014.

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28

Gerhardt, Michael R. "Microstructure and mechanical properties of bamboo in compression." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76122.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 34).<br>Bamboo has received much interest recently as a construction material due to its strength, rapid growth, and abundance in developing nations such as China, India, and Brazil. The main obstacle to the widespread use of bamboo as a structural material is the lack of adequate information on the mechanical properties of bamboo. In this work, the microstructure and mechanical properties of Phyllostachis du

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29

Humphry-Baker, Samuel A. "Controlling microstructure of nanocrystalline thermoelectrics through powder processing." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90085.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2014.<br>220<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 122-127).<br>Bismuth Telluride and its solid solutions are currently front running thermoelectric materials because of their high figure of merit. When processed via mechanical alloying to obtain nanocrystalline structures, their efficiency is increased dramatically, due to enhanced phonon scattering at grain boundaries. However, the excess free energy of these interfaces renders them inherent

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30

Lauder, Alan J. "Microstructure and particle arrangement in three dimensional printing." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12022.

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31

Scheffler, O. "The influence of steel microstructure on abrasive wear in soils." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/17646.

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Bibliography: pages 96-104.<br>A hypoeutectoid steel has been heat treated to produce a range of different hardnesses and microstructures. A simulative field test rig has been employed to determine the relationship between microstructural parameters, material properties and soil constitution. Attempts have been made to correlate the ranking order for the wear resistance of similar treated steels in field and laboratory tests. It has been established that wear resistance is a function of soil constitution, steel carbide morphology and hardness. Explanations have been advanced for the difference

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32

Lang, Candace Irene. "The influence of microstructure on electrical resistivity in palladium alloys." Doctoral thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/21681.

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The relationship between microstructure and electrical resistivity has been studied in palladium-tungsten and palladium-molybdenum alloys, which exhibit an anomalous increase in resistivity after annealing. The effect of dislocations and structural order on resistivity has been investigated in order to determine the mechanisms whereby changes in resistivity occur in these alloys. The electrical resistivity of palladium-tungsten and palladium-molybdenum alloys has been determined as a function of annealing temperature, using a sensitive electronic apparatus purpose-designed for the present work

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33

Ma, Fengde D. "Computational study of microstructure-propertymechanism relations in ferroic composites." Thesis, Michigan Technological University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3706305.

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<p> Ferroic materials, as notable members of smart materials, have been widely used in applications that perform sensing, actuation and control. The macroscopic property change of ferroic materials may become remarkably large during ferroic phase transition, leading to the fact that the macroscopic properties can be tuned by carefully applying a suitable external field (electric, magnetic, stress). To obtain an enhancement in physical and/or mechanical properties, different kinds of ferroic composites have been fabricated. The properties of a ferroic composite are determined not only by the pr

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34

Sorour, Ahmad. "Microstructure and tribology of Fe-Cr-B-based alloys." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123081.

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Wear causes loss of materials of moving parts and tools used in many fields. Wear can be reduced by employing appropriate materials and coatings, which requires an understanding of their microstructure, properties and tribological behavior. One of the high wear resistant materials is the Fe-Cr-B-based alloy system. Fe-Cr-B-based alloys have been fabricated using thermal spray, welding and sintering processes; and it has been found that their microstructure, properties and tribological performance vary from process to process. This dissertation focuses on advances made by employing recent proce

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35

Wang, Linbing. "An evaluation of the microstructures and the macro-behavior of unbonded and bonded granular materials." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/19307.

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36

Rickles, Stacey A. "Microstructural and compressive properties of a metal/ceramic syntactic foam." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/19677.

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37

Teijeiro, Xavier Garcia. "Numerical modelling of the microstructure and permeability of granular materials." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519622.

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The main objective of this work is to model granular materials comprising particles of aspherical shape and investigate the effect of the grain shape on the hydraulic properties of the material. For this purpose, a Discrete Element Method code for clustered spheres was developed during the course of this work to simulate aspherical particles. The shape of the particles modelled mimics the morphology of real grains obtained from a shape library of real scanned particles for which development this thesis also contributed. The simulation tools are then used to construct models of real sands by si

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38

Venegas, Castillo Rodolfo Gustavo. "Microstructure influence on acoustical properties of multi-scale porous materials." Thesis, University of Salford, 2011. http://usir.salford.ac.uk/26953/.

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This thesis investigates the microstructure influence on the acoustical properties of multi-scale porous materials. The theory of sound propagation in multi-scale materials is extended to account for physical processes specific to very small pores, e.g. rarefaction and sorption effects. First, models of sound propagation through single porosity fibrous and granular materials are investigated. These are then extended to account for fibre and particle porosity respectively. A first approach to modelling the acoustical properties of triple and quadruple porosity materials is then introduced. An i

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39

Becker, Jens. "Investigation of the microstructure of heterogeneous materials using ultrasonic waves." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/22997.

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40

Hassani, Khosrow. "X-ray microdiffraction techniques to study the microstructure of materials." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102506.

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X-ray microdiffraction is a powerful technique to study the microstructure of materials. In this thesis we built two x-ray micro diffraction setups and demonstrated their capabilities by two case studies. In our microfocusing setup, synchrotron x-rays were focused to a micron-size spot using a Fresnel zone plate. To scan the sample, we built a 3-axis translation stage with 30 nm step size over 25 mm travel range. Our x-ray diffraction imaging (topography) setup consisted of a monochromator, a channel-cut analyzer to define the diffraction angle, and a CCD camera with 0.645 mum pixels size to r

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41

Ranalli, Juan Manuel. "Relationship between microstructure and corrosion of pressure vessel cladding materials." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8333/.

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Type 347L and Type 309L stainless steels used as weld cladding materials of nuclear reactor pressure vessels were investigated under realistic conditions of fabrication and service. Electron backscatter diffraction and metallographic observations were used in combination with double loop electrochemical potentiokinetic reactivation (DLEPR) test and ASTM-262-A test to determine the precipitation behaviour and its influence on intergranular corrosion (IGC) resistance as a function of post welding heat treatment (PWHT) time at 600 oC and after simulated service ageing at 425 °C. It was shown that

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42

Brooks, Zenzile (Zenzile Z. ). "Fracture process zone : microstructure and nanomechanics in quasi-brittle materials." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82831.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 343-355).<br>Cracks begin (and end) at a crack tip; the "Fracture Process Zone" (FPZ) is a region of damage around the crack tip. The context of this research is the FPZ in quasi-brittle materials, which is characterized by cracking at various scales. This study focuses on crack propagation and FPZ development at a fundamental material scale: the scale of the grain. With regard to the FPZ, the stu

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43

Rhodes, James A. "Processing parameters and microstructure of intermetallic bonded diamond composite materials /." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1674101441&sid=1&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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44

Rhodes, James Anthony. "Processing Parameters and Microstructure of Intermetallic Bonded Diamond Composite Materials." OpenSIUC, 2008. https://opensiuc.lib.siu.edu/theses/484.

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AN ABSTRACT OF THE THESIS OF James A. Rhodes, for the Master of Science degree in Mechanical Engineering, presented November 3, 2008, at Southern Illinois University Carbondale. TITLE: PROCESSING PARAMETERS AND MICROSTRUCTURE OF INTERMETALLIC BONDED DIAMOND COMPOSITE MATERIALS MAJOR PROFESSORS: Drs. Dale E. Wittmer and Peter J. Filip The general purpose of this research was to produce a material that can outperform conventional materials used in high wear applications such as mining, drilling, and sawing. These types of applications are well suited for diamond materials because of the hard

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45

Li, Wei 1970 May 26. "Yield and geodesic properties of random elasto-plastic materials." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115877.

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Two topics, i.e., the scale effects and the geodesics of random heterogeneous materials will be discussed in this work.<br>When the separation of scales in random media does not hold, the representative volume element (RVE) of deterministic continuum mechanics does not exist in the conventional sense, and new concepts and approaches are needed. This subject is discussed here in the context of microstructures of two types - planar random chessboards, and planar random inclusion-matrix composites -- with microscale behavior being elastic-plastic-hardening (power-law). The microstructure is assum

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46

Westhoff, Daniel [Verfasser]. "Spatial stochastic modeling of advanced functional materials for investigating process-microstructure and microstructure-property relationships / Daniel Westhoff." Ulm : Universität Ulm, 2019. http://d-nb.info/1189733889/34.

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47

Punurai, Wonsiri. "Cement-based materials' characterization using ultrasonic attenuation." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-04042006-171125/.

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Thesis (Ph. D.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2006.<br>Dr. Jennifer Michaels, Committee Member ; Dr. Jacek Jarzynski, Committee Member ; Dr. Jianmin Qu, Committee Member ; Dr. Laurence J. Jacobs, Committee Chair ; Dr. Kimberly E. Kurtis, Committee Co-Chair.

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48

Mishra, Surendra. "Stereological assessment of the evolution of microstructural damage during creep." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/32779.

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49

Kubilay, Ceylan. "Flow forming of aeroengine materials." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/flow-forming-of-aeroenginematerials(01327c19-f793-48c5-87b9-d70d3d1674ad).html.

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Flow forming is a fairly new technique used for the production of dimensionally accurate near net shaped hollow components. The process has many advantages such as cost effectiveness and eliminating further operations like welding, machining, etc. This study focuses on the characterization of flow formed components to understand the process. Flow formed components are composed of different reductions and characterization techniques are applied to reveal the resulting microstructural differences. Effect of number of passes on the material is also investigated. Metallographic analysis was conduc

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50

Sonon, Bernard. "On advanced techniques for generation and discretization of the microstructure of complex heterogeneous materials." Doctoral thesis, Universite Libre de Bruxelles, 2014. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209087.

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The macroscopic behavior of complex heterogeneous materials is strongly governed by the interactions between their elementary constituents within their microstructure. Beside experimental efforts characterizing the behaviors of such materials, there is growing interest, in view of the increasing computational power available, in building models representing their microstructural systems integrating the elementary behaviors of their constituents and their geometrical organization. While a large number of contributions on this aspect focus on the investigation of advanced physics in material par

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