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Dissertations / Theses on the topic 'Glass based composites'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Rajpurohit, Ashok. "Development of advanced carbon/glass fibre based hybrid composites." Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLM020.

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Les composites hybrides offrent un moyen efficace d'améliorer les propriétés mécaniques des matériaux composites. Cette thèse vise à comprendre le comportement mécanique et l'effet synergique offerts par de tels composites hybrides sous plusieurs conditions de chargement. L'accent est mis, non seulement sur la caractérisation mécanique, mais également sur le développement et l'optimisation de nouvelles générations de renforts hybrides, permettant ainsi une hybridation aussi bien au niveau des nappes, qu’au niveau des mèches et des fibres. Dans ce travail, les fibres de carbone et de verre sont

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2

Żalin̄ska, Beata. "Bismuth-based glasses, glass-ceramics and composites for microwave applications." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.537987.

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3

Song, Kaikai. "Synthesis, microstructure, and deformation mechanisms of CuZr-based bulk metallic glass composites." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-129362.

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In the past, it has been found that CuZr-based BMG composites containing B2 CuZr crystals in the glassy matrix display significant plasticity with obvious work hardening. In this work, it was tried to provide a strategy for pinpointing the formation of CuZr-based BMG composites, to modify the microstructures of these composites, and to clarify their yielding and deformation mechanisms. In order to pinpoint the formation of CuZr-based BMG composites, the phase formation and structural evolution of 11 kinds of CuZr-based alloy systems, altogether 36 different compositions, during heating and que

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4

Hosseini, Nassibeh. "Experimental and Micromechanical Analysis of Flax and Glass Reinforced Bio-Based Composites." Diss., North Dakota State University, 2015. http://hdl.handle.net/10365/24880.

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Two different novel high-functional bio-based resins from Methoxylated Sucrose Soyate Polyol (MSSP) and methacrylated epoxidized sucrose soyate (MAESS) were used as matrices for composites. Vinyl ester reinforced with flax fiber and E-glass fiber were also produced as the references to highlight the performance of bio-based composites. An appropriate processing conditions for MSSP and MAESS resins using compression molding was established to fabricate high fiber volume content composites. Mechanical properties of composites were assessed by tensile, flexural, interlaminar shear strength (ILSS)

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5

Gibbons, Michael P. "Continuum-Scale Modeling of Shear Banding in Bulk Metallic Glass-Matrix Composites." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471882991.

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6

Aguilar, Diaz Yaneth. "Evaluation of silica-based/nickel and borate-based/silver glass composites for sealing solid oxide fuel cells." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106426.

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The increasing demand for energy and the necessity to overcome the depletion of fossil fuel supplies requires that alternative energy sources be developed. Solid Oxide Fuel Cells (SOFCs) are one of the alternative technologies to minimise our dependence on fossil fuel due to their numerous advantages including high efficiency, long-term stability, fuel flexibility and low emissions. However, the development of reliable sealing techniques remains a crucial challenge to overcome to allow usable efficiency and facilitate commercialization. Sealing technology has been object of research for severa

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7

Tzounis, Lazaros. "Glass and Jute fibers modified with CNT-based functional coatings for high performance composites." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-144493.

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Carbon nanotubes are known as one of the strongest materials in nature and since their discovery; they have triggered the scientific interest for fabricating multi-functional polymer composites. However, a well-known problem associated to the incorporation of nanoparticulate materials in polymer matrices is their tendency to agglomerate in order to reduce their surface energy, and the extreme increase of the polymer viscosities (i.e melts, solutions, etc), which makes it very difficult to process them. Polymers can be efficiently reinforced by fibers for applications where high strength and st

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8

Demirer, Halil. "Glass fibre coatings based on polyimide-silica hybrids for use in epoxy matrix composites." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/33046.

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Despite the advantages that composites have over monolithic materials, their use has been restricted by some deficiencies in their properties. The goal of this study was to overcome deficiencies of unidirectional glass fibre epoxy resin composites by coating the fibres with a "tailored" interlayer. Polyimide–silica hybrids, also known as ceramers, based on hydrolysed tetraethoxysilane and a polyamic acid solution mixture were used to coat glass fibres for epoxy composites. The silica part of these hybrids appears to be present either as dispersed discrete particles or as continuous nano-sized

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9

Singh, Sandeep. "Thermo-mechanical Behavior of Glass Based Seals for Solid Oxide Fuel Cells." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1288379341.

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10

Govender, Reuben Ashley. "Characterisation of Glass Fibre Polypropylene and GFPP based Fibre Metal Laminates at high strain rates." Doctoral thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/25150.

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Fibre reinforced polymers (FRP) are finding increasing use in structures subjected to high rate loading such as blast or impact. Proper design of such structures requires thorough characterisation of the material behaviour over a range of loading rates from quasi-static to impact. This thesis investigated the quasi-static and impact response of Glass Fibre Polypropylene (GFPP) in compression, bending and delamination. The bending and delamination response of Fibre Metal Laminates (FMLs) based on GFPP and aluminium was also investigated at quasi-static and impact rates. High strain rate

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11

Kilinc, Mert. "Processing And Characterization Of Poly(ethylene Terephthalate) Based Composites." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605142/index.pdf.

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Polymeric composites are any of the combinations or compositions that comprise two or more materials as separate phases, at least one of which is a polymer. By mixing a polymer with another material, such as glass, carbon, or another polymer, it is often possible to improve the desired properties of the polymer. In this study, ternary composites were prepared by using recycled poly(ethylene terephthalate), PET as the matrix material, short glass fiber (SGF) as the reinforcing filler and thermoplastic elastomer as the impact modifier. Bottle grade recycled PET was mixed in a twin screw extrud

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12

Pauly, Simon. "Phase formation and mechanical properties of metastable Cu-Zr-based alloys." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-39545.

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In the course of this PhD thesis metastable Cu50Zr50-xTix (0≤ x ≤ 10) and (Cu0.5Zr0.5)100-xAlx (5 ≤ x ≤ 8) alloys were prepared and characterised in terms of phase formation, thermal behaviour, crystallisation kinetics and most importantly in terms of mechanical properties. The addition of Al clearly enhances the glass-forming ability although it does not affect the phase formation. This means that the Cu-Zr-Al system follows the characteristics of the binary Cu-Zr phase diagram, at least for Al additions up to 8 at.%. Conversely, the presence of at least 6 at.% Ti changes the crystallisation

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13

Zhang, Meng, and 張朦. "A novel UEDMA-HPMA-based E-glass fiber reinforced composite in vitro studies on comprehensive properties as a dental material." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2015. http://hdl.handle.net/10722/210186.

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Fiber reinforced composites (FRCs) are increasingly used in dentistry with their tooth-matching mechanical, physical and aesthetic properties. The most commonly used FRC products consist of E- or S-glass fibers and methacrylate-based resin matrices. The commonly used methacrylate monomer bis-phenol A glycidyl methacrylate (bis-GMA) has a very high viscosity and possibly leads to a low degree of conversion (DC). In this PhD study, the much less viscous urethane dimethacrylate (UEDMA) was chosen as a replacement for bis-GMA, diluted by hydroxypropyl methacrylate (HPMA) to build up the resin syst

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14

Ozkoc, Guralp. "Abs/polyamide-6 Blends, Their Short Glass Fiber Composites And Organoclay Based Nanocomposites: Processing And Characterization." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608266/index.pdf.

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The objective of this study is to process and characterize the compatibilized blends of acrylonitrile-butadiene-styrene (ABS) and polyamide-6 (PA6) using olefin based reactive copolymers and subsequently to utilize this blend as a matrix material in short glass fiber (SGF) reinforced composites and organoclay based nanocomposites by applying melt processing technique. In this context, commercially available epoxydized and maleated olefinic copolymers, ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) and ethylene-n butyl acrylate-carbon monoxide-maleic anhydride (EnBACO-MAH) were used a

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15

Gargarella, Piter. "Phase formation, thermal stability and mechanical behaviour of TiCu-based alloys." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-133969.

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The large elastic limit, the strength close to the theoretical limit, the excellent magnetic properties and good corrosion resistance of bulk metallic glasses (BMGs) make them promising for several applications such as micro-geared motor parts, pressure sensors, Coriolis flow meters, power inductors and coating materials. The main limitation of these materials is their reduced macroscopic ductility at room temperature, resulting from an inhomogeneous deformation concentrated in narrows shear bands. The poor ductility can be overcome by the incorporation of a ductile second phase in the glassy

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16

Shah, Mohammadi Maziar. "Silicon, iron and titanium doped calcium phosphate-based glass reinforced biodegradable polyester composites as bone analogous materials." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107830.

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Bone defects resulting from disease or traumatic injury is a major health care problem worldwide. Tissue engineering offers an alternative approach to repair and regenerate bone through the use of a cell-scaffold construct. The scaffold should be biodegradable, biocompatible, porous with an open pore structure, and should be able to withstand the applied forces. Phosphate-based glasses (PGs) may be used as reinforcing agents in degradable composites since their degradation can be predicted and controlled through their chemistry. This doctoral dissertation describes the development and evaluati

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17

Budd, Michael Ian. "Mechanical property - fracture behaviour - microstructure relationships in particulate reinforced MgO#centre dot#SiOâ†2 based glass-ceramic matrix composites." Thesis, University of Bath, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260277.

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18

Tzounis, Lazaros [Verfasser], Manfred [Akademischer Betreuer] Stamm, and Edith [Akademischer Betreuer] Mäder. "Glass and Jute fibers modified with CNT-based functional coatings for high performance composites / Lazaros Tzounis. Gutachter: Manfred Stamm ; Edith Mäder." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://d-nb.info/1068447079/34.

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19

Siegel, Uwe. "Strukturelle, thermische und mechanische Charakterisierung von amorphen Eisenbasislegierungen und Glasmatrixkompositen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-33423.

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Gegenstand dieser Arbeit ist die Entwicklung, Herstellung und Charakterisierung verschiedener glasbildender Eisenbasislegierungen, mit dem Ziel: 1. durch umfangreiche Charakterisierung der Startlegierung Fe44,63Cr4,93Co4,93Mo12,61Mn11,03C15,56B5,81Y1,5 (at.%) Möglichkeiten zu evaluieren mit dieser Legierung Komposite aus amorpher Matrix und kristalliner Zweitphase herzustellen, 2. den Einfluss der Legierungselemente Kobalt, Chrom und Molybdän auf die strukturellen, thermischen und mechanischen Eigenschaften des Startlegierungstyps zu bestimmen und 3. auf Grundlage der Startlegierung Glasmatri

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20

Despringre, Nicolas. "Analyse et modélisation des mécanismes d'endommagement et de déformation en fatigue multiaxiale de matériaux composites : polyamide renforcé par des fibres courtes." Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0058/document.

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Le présent travail de thèse se consacre au développement d'un nouveau modèle micromécanique pour les composites en thermoplastique renforcé par des fibres de verre courtes. L'objectif est notamment la modélisation du comportement visco-endommageable en fatigue du PA66-GF30. Ce matériau, particulièrement utilisé dans l'industrie automobile, est sujet à une microstructure spécifique issue du procédé de moulage par injection. L'approche multi-échelles développée consiste en une méthode de Mori-Tanaka modifiée, appliquée à des renforts avec enrobage et prenant en compte l'évolution de l'endommagem

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21

Song, Kaikai [Verfasser], Jürgen [Akademischer Betreuer] Eckert, Simon [Akademischer Betreuer] Pauly, and Weimin [Akademischer Betreuer] Wang. "Synthesis, microstructure, and deformation mechanisms of CuZr-based bulk metallic glass composites / Kaikai Song. Gutachter: Jürgen Eckert ; Weimin Wang. Betreuer: Jürgen Eckert ; Simon Pauly." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://d-nb.info/1068154586/34.

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22

Charlier, Quentin. "Adhesion phenomena in thermoplastic composites based on acrylic matrices obtained by free radical polymerization." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI140.

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Ce mémoire de thèse s’intéresse aux phénomènes d’adhésion dans des composites à matrice thermoplastique obtenus par polymérisation radicalaire de mélanges réactifs. Après une courte introduction bibliographique sur les thématiques d’adhésion et d’adhérence, les propriétés générales des principaux éléments constitutifs des assemblages finaux sont étudiées séparément pour discuter de leur pertinence en vue d’une application composite. Une attention particulière est portée sur les systèmes réactifs acryliques à l’état liquide. L’étude se concentre ensuite sur les mécanismes réactionnels et l’évol

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23

Siegel, Uwe. "Strukturelle, thermische und mechanische Charakterisierung von amorphen Eisenbasislegierungen und Glasmatrixkompositen." Doctoral thesis, Institut für Festkörper- und Werkstoffforschung, 2009. https://tud.qucosa.de/id/qucosa%3A25292.

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Gegenstand dieser Arbeit ist die Entwicklung, Herstellung und Charakterisierung verschiedener glasbildender Eisenbasislegierungen, mit dem Ziel: 1. durch umfangreiche Charakterisierung der Startlegierung Fe44,63Cr4,93Co4,93Mo12,61Mn11,03C15,56B5,81Y1,5 (at.%) Möglichkeiten zu evaluieren mit dieser Legierung Komposite aus amorpher Matrix und kristalliner Zweitphase herzustellen, 2. den Einfluss der Legierungselemente Kobalt, Chrom und Molybdän auf die strukturellen, thermischen und mechanischen Eigenschaften des Startlegierungstyps zu bestimmen und 3. auf Grundlage der Startlegierung Glasmatri

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24

Kim, Jin Young. "Synthesis and Characterization of Bulk Metallic Glasses, Composites and Hybrid Porous Structures by Powder Metallurgy of Metallic Glassy Powders." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-170795.

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Metallic glasses exhibit many attractive attributes such as outstanding mechanical, magnetic, and chemical properties. Due to the absence of crystal defects, metallic glasses display remarkable mechanical properties including higher specific strength than crystalline alloys, high hardness and larger fracture resistance than ceramics. The technological breakthrough of metallic glasses, however, has been greatly hindered by the limited plastic strain to failure. Thus, several strategies have been employed to improve the intrinsic and extrinsic effects on the flow behavior of metallic glasses wit

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Kim, Jin Young. "Synthesis and Characterization of Bulk Metallic Glasses, Composites and Hybrid Porous Structures by Powder Metallurgy of Metallic Glassy Powders." Doctoral thesis, Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A28746.

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Metallic glasses exhibit many attractive attributes such as outstanding mechanical, magnetic, and chemical properties. Due to the absence of crystal defects, metallic glasses display remarkable mechanical properties including higher specific strength than crystalline alloys, high hardness and larger fracture resistance than ceramics. The technological breakthrough of metallic glasses, however, has been greatly hindered by the limited plastic strain to failure. Thus, several strategies have been employed to improve the intrinsic and extrinsic effects on the flow behavior of metallic glasses w

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26

De, Caso y. Basalo Francisco Jose. "Sustainable Composite Systems for Infrastructure Rehabilitation." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/495.

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The development of composite materials by combining two or more constituents with improved mechanical properties, when compared to either of the constituents alone, has existed since biblical times when straw or horse hair was mixed with clay or mud to produce bricks. During the second half of the twentieth century, modern composites known as fiber reinforced polymers (FRP) - consisting of a reinforcing phase (fibers) embedded into a matrix (polymeric resin or binder) - were developed to meet the performance challenges of space exploration and air travel. With time, externally-bonded FRP app

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27

Liens, Aléthéa. "On the potential of Ti-based Bulk Metallic Glasses and Ce-TZP zirconia composites for the development of innovative dental implants." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI117.

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Récemment, la réduction de taille des dispositifs implantés est devenue une tendance majeure de l’implantologie dentaire moderne. Cependant, elle nécessite le développement de matériaux présentant de fortes résistances mécaniques. Le titane et ses alliages, matériaux dentaires de référence, semblent avoir atteint un plateau en termes de propriétés mécaniques, ce qui peut limiter leur utilisation pour une telle stratégie. Les alliages métalliques amorphes à base de titane constituent une classe unique de matériaux présentant de fortes limites d’élasticité qui en font des candidats potentiels po

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28

Baggio, Airton [UNESP]. "Aproveitamento dos resíduos de compósitos à base de resina poliéster e fibra de vidro." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/90572.

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Made available in DSpace on 2014-06-11T19:24:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-09-01Bitstream added on 2014-06-13T18:52:28Z : No. of bitstreams: 1 baggio_a_me_botfca.pdf: 559829 bytes, checksum: e12ab3a17570794b47bb229f375ebfb5 (MD5)<br>Universidade Estadual Paulista (UNESP)<br>Nesta pesquisa estudou-se o aproveitamento dos resíduos de compósitos a base de resina poliéster insaturado e fibra de vidro provenientes dos processos de transformação: Moldagem por contato manual Hand lay-up, moldagem por projeção simultânea Spray-up e moldagem por injeção de resina Resin Tra

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29

Brown, Dennis P. "Development of a new type of composite material a glass based laminate cermet /." College Park, Md.: University of Maryland, 2006. http://hdl.handle.net/1903/7139.

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Thesis (M.S.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Dept. of Materials and Nuclear Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Almtteri, Nassier. "Quasi-static and dynamic behaviour of composite structures based on glass fibre reinforced PEKK." Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3028412/.

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The aim of this thesis is to investigate the quasi-static and impact response of the newly developed composite material and the related fibre metal laminates (FMLs) that have potential to satisfy the requirements of the new generation of aircrafts such as the damage tolerance and high service temperatures. Initially, this thesis presents the findings of a research study to develop high temperature thermoplastic composites. Here, woven S-glass fibre (GF) reinforced poly-ether-ketone-ketone (PEKK) thermoplastic prepreg materials are manufactured using a dry powder prepregging method. Prior to im

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31

Bertolla, Luca. "Mechanical Reinforcement of Bioglass®-Based Scaffolds." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234586.

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Bioactive glasses exhibit unique characteristics as a material for bone tissue engineering. Unfortunately, their extensive application for the repair of load-bearing bone defects is still limited by low mechanical strength and fracture toughness. The main aim of this work was two-fold: the reinforcement of brittle Bioglass®-based porous scaffolds and the production of bulk Bioglass® samples exhibiting enhanced mechanical properties. For the first task, scaffolds were coated by composite coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC). The addition of PVA/MFC

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32

Bdeir, Zeid. "Deflection-based design of fiber glass polymer (FRP) composite sheet pile wall in sandy soil." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33956.

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Fiber Reinforced polymer composite materials offer great potential for waterfront structural applications due to their excellent corrosion resistance, and high strength to weight ratio.<br>The purpose of this thesis is to develop a deflection based design approach for composite sheet pile wall, based on the traditional free-earth support method, but modified to allow the use of deflection criterion. With a simplified earth pressure loading on the wall, the relationship between maximum bending moment and maximum bending deflection and the relationship between maximum shear force and maximum she

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Sunny, George Padayatil. "A High Strain-Rate Investigation of a Zr-based Bulk Metallic Glass and an HTPB Polymer Composite." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1295634962.

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Li, Wei [Verfasser], and Aldo [Akademischer Betreuer] Boccaccini. "45S5 Bioactive Glass-Based Composite Scaffolds with Polymer Coatings for Bone Tissue Engineering Therapeutics / Wei Li. Gutachter: Aldo Boccaccini." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2015. http://d-nb.info/1076166660/34.

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Ha, Hung M. "Micro- and Nano-Scale Corrosion in Iron-Based Bulk Metallic Glass Sam 1651 and Silver-cored MP35N Lt Composite." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1260391940.

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36

Martin, Morgana. "Dynamic mechanical behavior and high pressure phase stability of a zirconium-based bulk metallic glass and its composite with tungsten." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22693.

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Thesis (Ph. D.)--Materials Science and Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Thadhani, Naresh; Committee Member: Doyoyo, Mulalo; Committee Member: Kecskes, Laszlo; Committee Member: Li, Mo; Committee Member: Sanders, Thomas; Committee Member: Zhou, Min.

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Paiva, Vanessa Giusti. "Desenvolvimento e caracterização de material composito a base de PMMA reforçado com fibra de vidro para uso odontologico." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267189.

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Orientadores: Wagner dos Santos Oliveira, Leila Peres<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-12T08:56:57Z (GMT). No. of bitstreams: 1 Paiva_VanessaGiusti_M.pdf: 3847622 bytes, checksum: 3b220ff7426435a8efb069e376425300 (MD5) Previous issue date: 2008<br>Resumo: O objetivo deste trabalho foi avaliar a resistência mecânica e a morfologia de fratura de resinas acrílicas sem e com reforço, processadas por microondas. Foram confeccionados 20 cp, sendo eles, Sem Reforço (SR), P246 5%, P246 8%, FSR 5%, FS

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Oliveira, Luana Cristina Araújo de. "Análise das tensões geradas durante a contração de polimerização e aplicação de cargas em restaurações diretas de resina composta. Efeito da utilização de materiais para base ou forramento /." Araraquara : [s.n.], 2004. http://hdl.handle.net/11449/101374.

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Resumo: O objetivo desta investigação científica foi analisar o efeito da presença de materiais para base ou forramento, nas tensões geradas durante a contração de polimerização e aplicação de cargas, em cavidade classe I, no segundo pré-molar superior. Foram avaliadas quatro técnicas restauradoras: 1) Resina composta Z250(3M ESPE) controle, 2) Resina composta Z250(3M ESPE) + forramento com resina de baixa viscosidade FiltekFlow(3M ESPE), 3) Resina composta Z250(3M ESPE) + Forramento com ionômero de vidro modificado por resina Vitrebond(3M ESPE) e 4) Resina composta Z250(3M ESPE) + base com io

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Gabet, Yann. "Étude et optimisation des interfaces fibre-matrice polymère de composites structuraux à base thermoplastique." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1244/document.

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Ces travaux de thèse portent sur l’étude et l’optimisation des propriétés interfaciales verre/PA 6-6 pour la conception de matériaux composites de structure. Une méthode visant à nettoyer et réactiver la surface du verre a dans un premier temps été développée. Elle permet de travailler avec des substrats de type fibres ou substrats modèles (plaques de verre) et d’obtenir des surfaces « contrôlées » avant l’application de nouveaux revêtements. La maîtrise de l’interface entre renfort et matrice nécessite l’optimisation de l’ensimage, dont les principaux constituants sont des agents filmogènes e

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Baggio, Airton 1960. "Aproveitamento dos resíduos de compósitos à base de resina poliéster e fibra de vidro /." Botucatu : [s.n.], 2005. http://hdl.handle.net/11449/90572.

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Orientador: Alcides Lopes Leão<br>Banca: Adriano Wagner Ballarin<br>Banca: José Augusto Marcondes Agnelli<br>Resumo: Nesta pesquisa estudou-se o aproveitamento dos resíduos de compósitos a base de resina poliéster insaturado e fibra de vidro provenientes dos processos de transformação: Moldagem por contato manual "Hand lay-up", moldagem por projeção simultânea "Spray-up" e moldagem por injeção de resina "Resin Transfer Moulding - RTM". As rebarbas de compósitos, oriundas das empresas transformadoras, são descartadas como lixo em aterros industriais ou clandestinos e levam décadas para se degra

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Oliveira, Luana Cristina Araújo de [UNESP]. "Análise das tensões geradas durante a contração de polimerização e aplicação de cargas em restaurações diretas de resina composta. Efeito da utilização de materiais para base ou forramento." Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/101374.

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Made available in DSpace on 2014-06-11T19:31:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-06-26Bitstream added on 2014-06-13T21:02:28Z : No. of bitstreams: 1 oliveira_lca_dr_arafo.pdf: 2273954 bytes, checksum: 3107451a04bf448e6e343be28108c606 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O objetivo desta investigação científica foi analisar o efeito da presença de materiais para base ou forramento, nas tensões geradas durante a contração de polimerização e aplicação de cargas, em cavidade classe I, no segundo pré-molar superior. Foram avaliadas

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Apayco, Leslie Caroll Casas. "Efeito do retardamento da polimerização da base de cimento de ionômero de vidro modificado por resina na resistência adesiva em restaurações de resina composta." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/25/25131/tde-03072009-104132/.

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Durante o processo inicial da reação de presa, o cimento de ionômero de vidro modificado por resina (CIVMR) apresenta baixo módulo de elasticidade, característica importante quando utilizado como base de restaurações com resina composta, por diminuir o estresse de contração de polimerização nas paredes cavitárias. O presente estudo teve como objetivo analisar a influência da técnica de polimerização de uma base CIVMR (VitrebondTM) por resina na interface dente/restauração de resina composta, através de teste de microtração e análise em microscopia confocal. Foram utilizados 30 dentes molares h

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Ramalli, Edvaldo Luiz. "Avaliação in vitro da resistencia ao cisalhamento de braquetes metalicos com e sem composito incorporado a base e cimentos de ionomero de vidro com variação da superficie de esmalte." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289592.

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Orientador: Lourenço Correr Sobrinho<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-04T03:57:14Z (GMT). No. of bitstreams: 1 Ramalli_EdvaldoLuiz_D.pdf: 836688 bytes, checksum: 22c18067abe55c01f713fc62bbe6b0a6 (MD5) Previous issue date: 2005<br>Resumo: O propósito deste estudo foi avaliar a resistência ao cisalhamento de braquetes metálicos (Victory Series, 3M Unitek, Monrovia, USA) com e sem compósito incorporado à base (APC II e APC Plus) e com os cimentos de ionômero de vidro modificados por resina (Fuj

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Sampaio, Paula Costa Pinheiro. "Efeito da base de cimento de ionômero de vidro convencional e modificado por resina na interface adesiva dente/resina composta após termociclagem." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/25/25131/tde-03072009-111632/.

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Resinas compostas apresentam contração de polimerização e a tensão gerada durante essa polimerização compete com a força adesiva na interface dente/restauração. A técnica incremental e o uso de bases com alta resiliência e módulo de elasticidade próximo ao das estruturas dentárias são técnicas desenvolvidas para tentar diminuir a tensão originada pela contração de polimerização. O presente estudo teve como objetivo analisar a influência do uso de bases de cimento de ionômero de vidro convencional e modificado por resina na qualidade e adaptação marginal na interface dentina/resina composta, a

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Lachowski, Karina Monteleone. "Estudo da radiopacidade de materiais odontológicos indicados como base e forramento de restaurações. Análise através da radiografia digital." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/23/23134/tde-20092011-171851/.

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A radiopacidade é um importante pré-requisito para materiais utilizados como base e forramento de restaurações, pois possibilita que o profissional identifique a presença do material e permita sua diferenciação com a estrutura dental adjacente. O objetivo desse estudo foi avaliar a radiopacidade de materiais indicados como base e forramento e comparar com a radiopacidade do esmalte, dentina e escala de alumínio. Para isso, foram analisadas 16 marcas comerciais de cimento de ionômero de vidro, 8 marcas de resina composta flow e 4 marcas de cimento de hidróxido de cálcio. Foram confeccionados tr

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Azevedo, Larissa Marinho. "Efeito da base de cimento de ionômero de vidro modificado por resina e técnicas de inserção de resina composta na interface dentina/restauração adesiva." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/25/25148/tde-04072011-114915/.

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Este estudo teve como objetivo avaliar o efeito da base de cimento de ionômero de vidro modificado por resina (CIVMR) e das técnicas de inserção incremental de resina composta na interface de parede circundante de restauração adesiva à dentina. Foram confeccionadas cavidades com 4,5mm X 3mm X 5mm em 52 molares humanos extraídos divididos em 4 grupos: Grupo 1 (controle): Sistema Adesivo (Adper Single Bond) + Resina Composta (Filtek Z250) com inserção em 2 incrementos horizontais (Fator C = 5); Grupo 2: Sistema Adesivo (Adper Single Bond) + Resina Composta (Filtek Z250) em 4 incrementos oblíquos

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Majda, Tomáš. "Lomové testy vybraných těles se speciálním plnivem: experimenty a numerická simulace." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392121.

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The diploma thesis deals with selected fracture tests and evaluation of fracture parameters of cement-based composite. One part of the thesis deals with cement-based composite with glass spherical aggregate of a single fraction of 2 mm. After production, the beams with dimensions of 20×40×200mm exposed to temperatures in the range from 100 to 1000 °C for one hour. Using the non-destructive ultrasonic pulse method, the degree of damage caused by termal load was determined. Selected specimen with central edge notch were then tested in three-point bending and fragments after these tests were test

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Cheng, I.-Kuan, and 鄭義冠. "Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/54775740960756259055.

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博士<br>國立臺灣海洋大學<br>材料工程研究所<br>94<br>In this study, Ti-based bulk metallic glass (BMG) composite powders reinforced with different volume fractions of Ta, W, WC, SiC or Al2O3 particles were prepared by mechanical alloying process. The bulk metallic glass composite with submicron W, WC, SiC or Al2O3 particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix was successfully prepared by vacuum hot pressing the as-milled Ti50Cu28Ni15Sn7 metallic glass composite powders at 723 K under a pressure of 1.2 GPa. The structure and thermal stability of BMG composites were examined

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Vaish, Rahul. "Borate Based Glasses, Transparent Glass-Microcrystal Composites And Their Physical Properties." Thesis, 2009. http://etd.iisc.ernet.in/handle/2005/1981.

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Transparent glasses embedded with ferroelectric/nonlinear optic crystallites have been in increasing demand as these exhibit promising physical properties. These could be fabricated in large sizes and shapes with high optical homogeneity accompanied by high degree of transparency over a wide range of wavelengths of light. Amongst a variety of glasses that are known, borate-based glasses are of particular interest owing to their greater transparency, good chemical and mechanical stability, low materials cost, and useful electrical and dielectric properties. Keeping the potential multifarious a

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Lo, Cheng, and 羅振. "A Study on the Preparation of Mg-Based Metallic Glass Composites." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/31063582889606884061.

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碩士<br>國立臺灣海洋大學<br>材料工程研究所<br>92<br>Magnesium-based glass matrix composites containing ceramic particles were produced by mechanical alloying of Mg49Y15Cu36 elemental powder mixtures with the addition of 10 vol % WC particles. After 10h milling, initial WC particles were homogeneously dispersed in the amorphous Mg-based alloy matrix. Examination of the glassy phase in the as-milled powders was conduced by X-ray diffraction and differential scanning calorimetry (DSC). The results indicated that the addition of WC particles could improve the glass forming velocity inside Mg49Y15Cu36 matrix. Bulk

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