Relevant bibliographies by topics / Refractory materials – Thermomechanical properties / Dissertations / Theses
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Dissertations / Theses on the topic 'Refractory materials – Thermomechanical properties'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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1

Goodall, R. "Thermomechanical properties of highly porous, fire-resistant materials." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.599499.

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A combination of low density and good heat resistance is desirable for many applications. Porosity is used to develop low density, and high porosity materials are frequently associated with low thermal conductivity. Materials that display this property, coupled with heat resistance, may be useful for thermal applications. Porous materials can exhibit several different structural types. In this work the structures that can be formed from fire resistant materials to reduce the density are considered as three different types. The first structure is represented by a recently-developed composite ma
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2

Autio, M. (Maija). "Studies on tailoring of thermomechanical properties of composites." Doctoral thesis, Oulun yliopisto, 1999. http://urn.fi/urn:isbn:9514254473.

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Abstract Layered composite materials consisting of thin orthotropic layers offer for a designer many possibilities to tailor the structure: the behaviour and properties of the structure can be influenced not only by varying the geometry and thicknesses of the structure but also by varying the lay-up of the laminate. As new orthotropic materials having high specific strength and stiffness are used in structures, the tailoring is essential to utilize all the benefits of these materials. In this thesis tailoring and optimization of thermomechanical properties of layered composite structures are c
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3

Bansal, Shubhra. "Thermomechanical characterization of materials formicrominiaturized system board requirements." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/14825.

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4

Warchal, Andrzej. "Study of the influence of additives (antioxidants) on the thermomechanical properties of carbon-bonded refractory composites." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0050.

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Les réfractaires alumine-carbone sont largement utilisés dans la coulée continue de l'acier. Ils sont responsables du contrôle du flux d'acier et de sa protection contre l'oxydation. Cependant, pour améliorer leur propre résistance à l'oxydation, plusieurs additifs tels que des carbures, des métaux, des composés à bas point de fusion et des frittes de verre sont ajoutés en tant qu'antioxydants. Dans cette étude, l'influence de ces additifs, ainsi que des conditions de cuisson, sur les propriétés liées à la résistance aux chocs thermiques des matériaux réfractaires à matrice carbonée a été étud
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5

Yan, Kun, and 閆琨. "Size effects on the thermo-mechanical behavior on nano-structures/ materials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B41290513.

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6

Cowan, Richard Scott. "Development of tribological design strategies based on a thermomechanical wear transition model." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17976.

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7

Calcaterra, Jeffrey Ronald. "Life prediction evaluation and damage mechanism identification for SCS-6/Timetal 21S composites subjected to thermomechanical fatigue." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/12548.

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8

Zhang, Xiaodong. "Modeling of materials with internal variables using a thermomechanical approach." Thesis, Virginia Tech, 1992. http://hdl.handle.net/10919/45355.

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In this thesis, the thermomechanical approach with internal variables has been thoroughly analyzed. This approach is based on the combination of thermodynamic principles and continuum mechanics. Therefore it reflects the physical essence of constitutive behavior of materials. Based on this approach, a one-dimensional constitutive model for the two-way shape memory effect and a one-dimensional constitutive model for piezoceramics have been developed, respectively. In modeling the two-way shape memory effect, a residual stress σ<sub>re</sub> is introduced as a controlling parameter for the two-
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9

Aronson, Joshua Boyer. "The Synthesis and Characterization of Energetic Materials From Sodium Azide." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/7597.

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A tetrazole is a 5-membered ring containing 4 nitrogens and 1 carbon. Due to its energetic potential and structural similarity to carboxylic acids, this ring system has a wide number of applications. In this thesis, a new and safe sustainable process to produce tetrazoles was designed that acheived high yields under mild conditions. Also, a technique was developed to form a trityl-protected tetrazole in situ. The rest of this work involved the exploitation of the energetic potential of tetrazoles. This moiety was successfully applied in polymers, ionic liquids, foams, and gels. The overa
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10

Farjam, Nazanin. "Effects of Size and Geometry on the Thermomechanical Properties of Additively-Manufactured NiTi Shape Memory Alloys." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo153333222254631.

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11

Aleknevičius, Marius. "The influence of oil cracking catalyst waste on the properties of refractory castables." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20110120_134405-85598.

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Fluidized bed catalytic cracking catalyst waste is a zeolite material. Its unique properties are underused in cementitious materials production technology. Various additives, modifiers used in refractory castables are very expensive, so the use of catalyst waste as a modifying additive of castable properties has not only an ecological (waste recycling) but also an economical basis. Medium cement refractory castable was developed using 70 % and 40 % of aluminium oxide containing aluminate cement and catalyst waste additive, respectively 2,5 % and 5,0 %. The work also reveals an efficient effect
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12

Kuriakose, Sunil. "Analysis of damage in composite laminates under bending." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/12054.

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13

Rowland, Harry Dwight. "Thermomechanical Manufacturing of Polymer Microstructures and Nanostructures." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14642.

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Molding is a simple manufacturing process whereby fluid fills a master tool and then solidifies in the shape of the tool cavity. The precise nature of material flow during molding has long allowed fabrication of plastic components with sizes 1 mm 1 m. Polymer molding with precise critical dimension control could enable scalable, inexpensive production of micro- and nanostructures for functional or lithographic use. This dissertation reports experiments and simulations on molding of polymer micro- and nanostructures at length scales 1 nm 1 mm. The research investigates two main areas: 1)
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14

Lin, Brian E. "Stucture and thermomechanical behavior of nitipt shape memory alloy wires." Thesis, Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28233.

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The objective of this work is to understand the structure-property relationships in a pseudoelastic composition of polycrystalline NiTiPt (Ti-42.7 at% Ni-7.5 at% Pt). Structural characterization of the alloy includes grain size determination and texture analysis while the thermo-mechanical properties are explored using tensile testing. Variation in heat treatment is used as a vehicle to modify microstructure. The results are compared to experiments on Ni-rich NiTi alloy wires (Ti-51.0 at% Ni), which are in commercial use in various biomedical applications. With regards to microstructure, bo
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15

Morel, Bayram Murat. "Investigation Of The Effects Of Temperature On Physical And Mechanical Properties Of Monolithic Refractory Made With Pozzolanic Materials." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606700/index.pdf.

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In recent years, scientific studies are carried out to find new refractory material. Having good mechanical properties under very high temperatures, refractories are widely used in industries like iron, steel, glass, cement and pottery. Researches are focused on monolithic refractory making because of their superior properties comparing to conventional firebrick refractories. Providing a mono-block body, having no joints makes the monolithic refractories more durable at elevated temperatures. Easier production and installation are two main points that people are choosing monolithic refractorie
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16

Paine, Jeffrey S. "Multi-functional SMA hybrid composite materials and their applications." Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/38219.

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Shape memory alloy (SMA) materials such as nitinol have unique properties associated with the shape recovery effect and the material’s phase changes that have been used in a variety of actuator and sensing applications. By embedding SMA elements into host composite materials, control or modification of the SMA hybrid composite’s structural properties can be accomplished inservice, thereby increasing the hybrid composite’s structural functionality. Previous studies addressed increasing composite materials’ functionality by enabling in-service control of their dynamic response. Utilizing the SMA
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17

Du, Xiangdong 1967. "Scaling laws in permeability and thermoelasticity of random media." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102973.

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Under consideration is the finite-size scaling of two thermomechanical responses of random heterogeneous materials. Stochastic mechanics is applied here to the modeling of heterogeneous materials in order to construct the constitutive relations. Such relations (e.g. Hooke's Law in elasticity or Fourier's Law in heat transfer) are well-established under spatial homogeneity assumption of continuum mechanics, where the Representative Volume Element (RVE) is the fundamental concept. The key question is what is the size L of RVE? According to the separation of scales assumption, L must be bounded a
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18

Kirabira, John Baptist. "Properties of Ugandan minerals and fireclay refractories." Doctoral thesis, KTH, Materials Science and Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-225.

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<p>Development of products which can be produced from a country’s natural resources is very important as far as the industrialization of a nation and saving foreign exchange is concerned. Presently, industries in Uganda and the other states in the Lake Victoria region import all refractory-related-consumables, as the demand cannot be met locally. Based on the abundance of ceramic raw materials for high temperature applications in the region and the demand for refractories by industries it is pertinent to develop and manufacture firebricks by exploiting the locally available raw materials.</p><
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19

Depp, Michelle McRae. "PVA cryogel optimization and diffusion studies." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/11194.

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20

Kulkarni, Ambarish J. "Atomistic Characterization and Continuum Modeling of Novel Thermomechanical Behaviors of Zinc Oxide Nanostructures." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19761.

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ZnO nanowires and nanorods are a new class of one-dimensional nanomaterials with a wide range of applications in NEMS. The motivation for this work stems from the lack of understanding and characterization of their thermomechanical behaviors essential for their incorporation in nanosystems. The overall goal of this work is to develop a fundamental understanding of the mechanisms controlling the responses of these nanostructures with focus on: (1) development of a molecular dynamics based framework for analyzing thermomechanical behaviors, (2) characterization of the thermal and mechanical beha
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21

Fernandez-Zelaia, Patxi. "Thermomechanical fatigue crack formation in nickel-base superalloys at notches." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/48991.

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Hot sections of gas engine turbines require specialized materials to withstand extreme conditions present during engine operation. Nickel-base superalloys are typically used as blades and disks in the high pressure turbine section because they possess excellent fatigue strength, creep strength and corrosion resistance at elevated temperatures. Components undergo thermomechanical fatigue conditions as a result of transient engine operation. Sharp geometric features, such as cooling holes in blades or fir-tree connections in disks, act as local stress raisers. The material surrounding these feat
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22

Luscher, Darby J. "A hierarchical framework for the multiscale modeling of microstructure evolution in heterogeneous materials." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33968.

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All materials are heterogeneous at various scales of observation. The influence of material heterogeneity on nonuniform response and microstructure evolution can have profound impact on continuum thermomechanical response at macroscopic "engineering" scales. In many cases, it is necessary to treat this behavior as a multiscale process. This research developed a hierarchical multiscale approach for modeling microstructure evolution. A theoretical framework for the hierarchical homogenization of inelastic response of heterogeneous materials was developed with a special focus on scale invari
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23

Doche, Cécile. "Elaboration et caractérisation de composites céramiques réfractaires SiAlON-nitrure de bore." Grenoble INPG, 1996. http://www.theses.fr/1996INPG4204.

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Les si alon-bn sont des materiaux susceptibles de remplacer des refractaires carbones utilises en siderurgie en particulier pour l'elaboration d'acier a faible teneur en c. Deux familles de composites, obtenues par des voies d'elaboration differentes, ont ete etudiees: si#3n#4-bn par compression a chaud et si alon-bn par frittage naturel. Dans le premier cas, un precurseur organique du bn, qui semble activer le frittage, a aussi ete utilise. Pour tous ces materiaux, nous avons etudie les procedes de fabrication, les microstructures, les proprietes mecaniques, les resistances aux chocs thermiqu
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24

Johnson, Janine. "Thermomechanical modeling of porous ceramic-metal composites accounting for the stochastic nature of their microstructure." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33857.

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Porous ceramic-metal composites, or cermets, such as nickel zirconia (Ni-YSZ), are widely used as the anode material in solid oxide fuel cells (SOFC). These materials need to enable electrochemical reactions and provide the mechanical support for the layered cell structure. Thus, for the anode supported planar cells, the thermomechanical behavior of the porous cermet directly affects the reliability of the cell. Porous cermets can be viewed as three-phase composites with a random heterogeneous microstructure. While random in nature, the effective properties and overall behavior of such com
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25

Chu, Chun. "Development of polymer nanocomposites for automotive applications." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37128.

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Polymer nanocomposites (PNCs) have gained significant interest because they have outstanding performance that allows cost reduction, weight reduction, and product improvement. This research study focuses on the manufacture and characterization of PNCs in order to explore their potential in automotive applications. More specifically, polypropylene (PP) nanocomposites reinforced with xGnP and nanokaolin were fabricated by manufacturing methods that optimize their performances. Exfoliated graphite nanoplatelets (xGnP) are promising nanofillers that are cost effective and multifunctional with supe
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26

Moore, Zachary Joseph. "Life modeling of notched CM247LC DS nickel-base superalloy." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24813.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Dr. Richard W. Neu; Committee Member: Dr. David L. McDowell; Committee Member: Dr. W. Steven Johnson.
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27

Narayanan, Vindhya. "Non-equilibrium Thermomechanics of Multifunctional Energetic Structural Materials." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7570.

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Shock waves create a unique environment of high pressure, high temperature and high strain-rates. It has been observed that chemical reactions that occur in this regime are exothermic and can lead to the synthesis of new materials that are not possible under other conditions. The exothermic reaction is used in the development of binary energetic materials. These materials are of significant interest to the energetic materials community because of its capability of releasing high heat content during a chemical reaction and the relative insensitivity of these types of energetic materials. Synthe
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28

Luchini, Bruno [Verfasser], Christos G. [Akademischer Betreuer] Aneziris, Christos G. [Gutachter] Aneziris, and Victor C. [Gutachter] Pandolfelli. "Processing and properties of bulk and cellular carbon-bonded refractory materials / Bruno Luchini ; Gutachter: Christos G. Aneziris, Victor C. Pandolfelli ; Betreuer: Christos G. Aneziris." Freiberg : Technische Universität Bergakademie Freiberg, 2019. http://d-nb.info/1220636509/34.

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29

Kupkovits, Robert Anthony. "Thermomechanical fatigue behavior of the directionally-solidified nickel-base superalloy CM247LC." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28160.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Dr. Richard W. Neu; Committee Member: Dr. David L. McDowell; Committee Member: Dr. W. Steven Johnson.
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30

Holliday, Nathan. "Processing and Properties of SBR-PU Bilayer and Blend Composite Films Reinforced with Multilayered Nano-Graphene Sheets." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458300045.

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31

Lakrit, Mohamed. "Comportement et cinétique de transformation martensitique sous sollicitation multiaxiale des matériaux métastables." Thesis, Brest, 2016. http://www.theses.fr/2016BRES0021/document.

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La transformation de phase influence considérablement les propriétés thermomécaniques des matériaux métastables. Elle est prise en considération dans des modèles numériques qui simule le comportement de ces derniers dans des codes de calcul et qui nécessitent des résultats expérimentaux. Ainsi, ces travaux concernent la caractérisation du comportement axial et multiaxial de deux aciers iTRIP à savoir l’acier 301L et l’acier 304L ainsi qu’un alliage à mémoire de forme à base de CuAlBe. Cette caractérisation est couplée avec un suivi de la cinétique des transformation de phase entreprise par la
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32

SANTOS, WILSON N. dos. "Contribuicao ao estudo da condutividade termica do material ceramico concreto refratario utilizando a tecnica de fio quente com ajustes por regressao nao linear." reponame:Repositório Institucional do IPEN, 1988. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9901.

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33

Samson, Gabriel. "Synthèse et propriétés des mousses minérales." Thesis, Rennes, INSA, 2015. http://www.theses.fr/2015ISAR0015/document.

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Les mousses minérales sont des matériaux alvéolaires utilisables en isolation thermique répartie. L’objectif de ces travaux de recherche est de développer, à partir d’une suspension très concentrée de liants hydrauliques, des mousses légères présentant de bonnes performances mécaniques et thermiques. L’introduction de tensioactif est nécessaire à la formation des mousses minérales. Six molécules tensioactives sont sélectionnées dans cette étude. Leurs capacités à réduire la tension de surface et à stabiliser une mousse aqueuse sont évaluées. Deux groupes de tensioactifs sont distingués sur la
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34

Tran, Manh Tien. "Caractérisation expérimentale et modélisation numérique du comportement thermomécanique à haute température des matériaux composites renforcés par des fibres." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1111/document.

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Les matériaux composites TRC (Textile Reinforced Concrete), consistant d'une matrice cimentaire et d'un renforcement par des textile ou fibres (en carbone, en verre ou en autre matière, …) sont souvent utilisés pour réparer ou/et renforcer les éléments structurels porteurs (dalle, poutre, colonne) d'anciens ouvrages de génie civil. Ils peuvent être également utilisés comme des éléments porteurs dans les structures neuves (éléments de préfabrications). Afin de développer des composites TRC avec de bonnes caractéristiques à température élevée, on a fait une combinaison entre les textiles de carb
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35

COSTA, FRANCINE A. da. "Sintese e sinterizacao de pos compositos do sistema W-Cu." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11176.

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36

Malakhova-Ziablova, Irina. "Asymptotic and numerical methods for fluid-structure interaction problems and applications to the materials science and engineering." Thesis, Saint-Etienne, 2015. http://www.theses.fr/2015STET4003/document.

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Le but de cette thèse pluridisciplinaire est d’étudier le problème de l’interaction fluide-structure à partir du point de vue mathématique et physique. Des problèmes d’interaction d’un fluide visqueux avec une structure élastique décrivent, par exemple, des interactions entre le manteau terrestre et de la croûte terrestre, le sang et la paroi vasculaire dans un vaisseau sanguin, etc. En génie l’interaction fluide visqueux-structure apparaît lors de la formation de solution colloïdale quand un laser passe à travers le fluide influençant le substrat (ablation laser dans un liquide). Fusion sélec
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37

Solarek, Johannes. "Mechanisches Verhalten von kohlenstoffgebundenen Feuerfestwerkstoffen bis 1500°C." Doctoral thesis, Technische Universität Bergakademie Freiberg, 2019. https://tubaf.qucosa.de/id/qucosa%3A37432.

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Die Arbeit führt Methoden zur Durchführung von Zugversuchen und bruchmechanischen Versu-chen ein und liefert mechanische Kennwerte für zwei kohlenstoffgebundene FFW im Bereich von RT bis 1500°C. Dafür standen ein grobkörniges MgO-C und ein feinkörniges Al2O3-C zur Ver-fügung. Die Werkstoffe zeigten bis 1200°C keine Duktilität und sprachen spröde. Die Schädigung erfolgte ausschließlich durch Risswachstum. Dieses fand beim MgO-C temperaturunabhängig auf Grund der rissbehafteten Mikrostruktur durch stabiles Risswachstum bereits vorhandener Risse statt. Es kam dabei zur Bildung von Rissnetzwerken
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Michel, Grégory. "Recherche de nouveaux superalliages de fonderie pour fibrage à très haute température." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10131.

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L'assiette de fibrage utilisée pour la production de la laine de verre d'isolation subit à haute température de nombreuses contraintes (chimiques, mécaniques et thermiques). La ruine des assiettes peut être due à l'oxydation par les gaz chauds, à la corrosion par le verre fondu ou à la déformation par fluage. La première partie des travaux de thèse a porté sur l'amélioration des propriétés mécaniques des alliages pour le fibrage à 1200°C. Dans un premier temps, la teneur en chrome au coeur d'alliages à base de cobalt a été réduite afin d'augmenter la réfractarité en conservant la microstructur
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39

Lugisani, Peter. "Identification of refractory material failures in cement kilns." Thesis, 2016. http://hdl.handle.net/10539/22336.

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A dissertation submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Master of Science in Engineering Johannesburg, 11 October 2016<br>Refractory lining failure of damaged magnesia bricks and used alumina bricks was investigated by XRF, XRD, SEM-EDS analysis and computational thermochemistry (phase diagrams). In addition, the effect of oxygen partial pressure towards the refractory lining and alkali sulphate ratio were also determined. The presence of low melting phases of KCl, (Na,
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40

Luchini, Bruno. "Processing and properties of bulk and cellular carbon-bonded refractory materials." 2019. https://tubaf.qucosa.de/id/qucosa%3A35080.

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In this manuscript, distinct problems concerning carbon-bonded materials processing and characterization were analyzed, from bulk to cellular samples. The main motivation was to address central topics that would enhance the comprehension of the material’s behavior, as well as trigger targeted improvements. Some of the topics this thesis covers are: Non-linear Young’s modulus behavior of carbon-bonded alumina at high temperatures; Influence of the processing route on the cold crushing strength of carbon-bonded alumina foam filters; Geometric characterization of ceramic foam filters as a tool to
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41

Zhao, Dan. "Tuning Nanoparticle Organization and Mechanical Properties in Polymer Nanocomposites." Thesis, 2016. https://doi.org/10.7916/D8639Q1G.

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Polymer nanocomposites (PNCs), mixtures of nanometer-sized particles and polymeric matrices, have attracted continuing interest over the past few decades, primarily because they offer the promise of significant property improvements relative to the pure polymer. It is now commonly accepted in the community that the spatial organization of nanoparticles (NPs) in the polymer host plays a critical role in determining the macroscopic properties of the resulting PNCs. However, till date there is still dearth of cost-effective methods for controlling the dispersion of NPs in polymeric hosts. In this
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42

"Microstructural and Mechanical Property Characterization of Laser Additive Manufactured (LAM) Rhenium." Doctoral diss., 2012. http://hdl.handle.net/2286/R.I.14777.

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abstract: This report will review the mechanical and microstructural properties of the refractory element rhenium (Re) deposited using Laser Additive Manufacturing (LAM). With useable structural strength over 2200 °C, existing applications up to 2760 °C, very high strength, ductility and chemical resistance, interest in Re is understandable. This study includes data about tensile properties including tensile data up to 1925 °C, fracture modes, fatigue and microstructure including deformation systems and potential applications of that information. The bulk mechanical test data will be correlate
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43

Sob, Peter Baonhe. "Modelling stain rate sensitive nanomaterials' mechanical properties: the effects of varying definitions." Thesis, 2016. http://hdl.handle.net/10352/332.

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M. Tech. (Mechanical Engineering, Faculty of Engineering and Technology): Vaal University of Technology<br>Presently there exist a lot of controversies about the mechanical properties of nanomaterials. Several convincing reasons and justifications have been put forward for the controversies. Some of the reasons are varying processing routes, varying ways of defining equations, varying grain sizes, varying internal constituent structures, varying techniques of imposing strain on the specimen etc. It is therefore necessary for scientists, engineers and technologists to come up with a clearer way
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