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Tesi sul tema "Ceramics"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Dobedoe, Richard Simon. "Glass-ceramics for ceramic/ceramic and ceramic/metal joining applications." Thesis, University of Warwick, 1997. http://wrap.warwick.ac.uk/4217/.

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The use of sintered cordierite/enstatite glass-ceramics as interlayers for joining silicon nitride to itself and to metals has been investigated. The role of the additives B203 and P205, which control the dynamics of sintering and crystallisation, has been studied using SEM, XRD and non-isothermal DTA-based measurements of activation energy. The measured activation energies for the crystallisation of μ-cordierite, for compositions with no additives, with B203 only, and with P205 only, did not differ significantly and were in the range 415-460 kJ mol-1. When both B203 and P205 were present this

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2

Wade, James. "Contact damage of ceramics and ceramic nanocomposites." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/24932.

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Herein, we study the contact damage performance of two armour ceramics, alumina and silicon carbide, with varying microstructures and one particle-reinforced ceramic nanocomposite, alumina/silicon carbide, in an attempt to understand the microstructural mechanisms that affect plasticity and cracking under quasi-static and dynamic conditions. Quasi-static contact damage was imitated using Vickers indentation over a varying load regime. Numerical analysis of the indentation size effect, performed using the proportional specimen resistance model, allowed the contributions of plastic deformation a

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3

VENTRELLA, ANDREA. "JOINING OF CERAMIC COMPOSITES AND ADVANCED CERAMICS." Doctoral thesis, Politecnico di Torino, 2012. http://hdl.handle.net/11583/2502686.

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Ceramics and Ceramic Matrix Composites (CMC) are well known as useful materials for harsh environment applications. Ceramic components have been widely used as abrasives, cutting tools, nuclear fuel elements, catalyst supports and astronomical telescope mirrors. Generally speaking, ceramics and CMC are excellent candidates for high-temperature applications because of their good mechanical properties and thermal stability at elevated temperatures. However, to produce large-size and complex components, development and testing of joints for ceramics and CMC are fundamental. Joining materials and

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4

Mussi, Toschi Vitoria. "Lead-free ferroelectric ceramics for multilayer ceramic capacitors." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC089.

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De nos jours, la consommation des condensateurs céramiques multicouches (MLCCs) augmente en raison de leur efficacité et leur fiabilité. La miniaturisation résultant dans une plus grande dissipation volumique de chaleur et les nouvelles applications demandent des MLCCs qui peuvent travailler de 300 à 350°C, au-delà des limites actuelles de 200 – 250°C. De plus, les exigences environnementales augmentent également avec les réglementations REACH et RoHS qui interdisent l'utilisation du plomb en Europe. Il est donc impératif de créer des nouveaux matériaux sans plomb capables de répondre aux nouv

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5

Hill, Arnold Hill. "PRODUCTION OF BULK CERAMIC SHAPES FROM POLYMER DERIVED CERAMICS." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4248.

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A method has been developed to produce bulk ceramic components from a class of ceramics known as polymer derived ceramics. In the past polymer derived ceramics have been limited to thin film applications or in the fabrication of MEMS devices. The reason being that when the polymer is into a ceramic, large quantities of gas are generated which produce internal pressure that fractures the ceramic components. The method developed here solves that issue by casting into the polymer a 3 dimensional network of polymer fibers in the form of a foam which, during pyrolysis, burns out and leaves a networ

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6

Feilden, Ezra. "Additive manufacturing of ceramics and ceramic composites via robocasting." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/55940.

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In the last two decades additive manufacturing (AM) has emerged as a highly important and influential technology. A large range of approaches to AM have been developed which give rise to hundreds of distinct techniques. Many of these are specific to one material system, and only a handful have been successful at producing ceramic parts. Robocasting is one such technique, having been used to produce complex ceramic parts with reasonable mechanical properties. In this thesis robocasting is investigated further, firstly by characterising the rheology of the robocasting paste, and then by measurin

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7

Santana, Jerusa Góes Aragão [UNESP]. "Desenvolvimento de cerâmicas multicamadas de carbeto de silício destinadas a aplicações térmicas." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/103760.

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Abstract (sommario):

Made available in DSpace on 2014-06-11T19:32:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-04-28Bitstream added on 2014-06-13T19:22:34Z : No. of bitstreams: 1 santana_jga_dr_guara.pdf: 3216476 bytes, checksum: e873d90ab626be457200e6023fa5308c (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Companhia Siderurgica de Tubarao<br>Cerâmicas multicamadas de carbeto de silício foram obtidas por conformação por consolidação ou prensagem e utilizando diferentes técnicas de adesão das camadas. Produzidas com duas ou três camadas e apresentando gradientes de p

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8

Adicks, Michael Kent. "Strength characterization of thin-wall hollow ceramic spheres from slurries." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/9318.

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9

Katti, Kalpana Shastri. "Microstructure and local dielectric function in barium titanate based electroceramics /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/10590.

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10

Sujirot, Kuljira. "Silicate glass-ceramics containing fluoride for application in ceramic-matrix-composites." Thesis, Imperial College London, 1995. http://hdl.handle.net/10044/1/7435.

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11

Gopnik, Hilary. "The ceramics of Godin II, ceramic variability in the archaeological record." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0019/NQ53817.pdf.

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12

Matthews, Stephen John. "Cavitation erosion of aluminium alloys, aluminium alloy/ceramic composites and ceramics." Thesis, Coventry University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317927.

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13

Sütçü, Mücahit Akkurt Sedat. "Development of Dense Ceramic Tiles From Mixtures of Alumina Powders With Different Psd/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/malzemebilimivemuh/T000462.pdf.

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14

Zhang, Yu 1965. "Erosion behaviour of engineering ceramics." Monash University, School of Physics and Materials Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/8404.

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15

Lee, Shin Steven. "Damage analysis and mechanical response of as-received and heat-treated Nicalon/CAS-II glass-ceramic matrix composites." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-10032007-171633/.

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16

Martinez, Tais Cruz [UNESP]. "Avaliação da resistência á flexão de cerâmicas dentais Y-TZP: efeito de material e espessura." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/89675.

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Made available in DSpace on 2014-06-11T19:24:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-28Bitstream added on 2014-06-13T18:51:44Z : No. of bitstreams: 1 martinez_tc_me_arafo.pdf: 873272 bytes, checksum: 438b65835375d34883a0dfb0195b8ae2 (MD5)<br>O objetivo deste trabalho foi avaliar a resistência à flexão de cerâmicas de zircônia estabilizada por ítrio em função de marca comercial e espessura. A resistência à flexão (MPa) foi testada pelo método uniaxial de 3 pontos, conforme Norma ISO 6872/2005 em Máquina de Ensaios Universal EMIC DL 2000, usando célula de carga de 5kN, vel

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17

Paula, Amauri Jardim de [UNESP]. "Síntese de templates para aplicação em piezocerâmicas livre de chumbo." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/92080.

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Made available in DSpace on 2014-06-11T19:25:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-02-22Bitstream added on 2014-06-13T18:53:42Z : No. of bitstreams: 1 paula_aj_me_araiq.pdf: 4248467 bytes, checksum: 8dc95ae46ec5d889f9869c43632e6cd9 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>As piezocerâmicas de chumbo a base de Pb(Zr1-xTix)O3 (PZT) sempre tiveram destaque devido às suas excelentes propriedades piezoelétricas. Suas aplicações como sensores, atuadores e capacitores tornaram

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18

Santana, Jerusa Góes Aragão [UNESP]. "Estudo e desenvolvimento de cerâmicas porosas de dióxido de titânio aditivadas com proteínas de soja." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/97080.

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Made available in DSpace on 2014-06-11T19:28:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-07Bitstream added on 2014-06-13T19:58:08Z : No. of bitstreams: 1 santana_jga_me_guara.pdf: 1891764 bytes, checksum: ab046e5fa746569839a1676ec343c884 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Universidade Estadual Paulista (UNESP)<br>Este trabalho foi realizado com o objetivo de verificar a possível conformação de cerâmicas de dióxido de titânio (TiO2) utilizando proteína vegetal (soja) como agente ligante e elemento formador de poros. Para tanto, foram

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19

Herath, Herath Mudiyanselage Thushari Uthpala. "Novel ceramics and ceramic structures : an 'in-vitro' study of osteoblast response." Thesis, Queen Mary, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429185.

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20

Bleay, S. M. "Microstructure and micromechanics in glass and glass-ceramics reinforced with ceramic fibres." Thesis, University of Bath, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293064.

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21

Stevenson, Greg. "Ceramic design for modern living : an archaeology of British ceramics 1927-37." Thesis, University of Wales Trinity Saint David, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.683311.

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22

Fu, Yu. "Residual Strength of Metal Particulate Reinforced Ceramic Matrix Composites with Multiple Cracks." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/FuY2008.pdf.

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23

Gonzalez, Sandra C. "Preparation and characterization of new porous ceramic filters for hot gas clean-up." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-12052009-020046/.

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24

Owate, I. O. "The electrical properties of some alumina ceramics and glass ceramics." Thesis, University of Manchester, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282951.

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25

Chung, Jae Hoon. "Compressive mechanical behavior of hollow ceramic spheres and bonded-sphere forms." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/9984.

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26

Laurie, Joyce. "Freeze casting : a modified sol-gel process." Thesis, University of Bath, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260248.

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27

Senapati, Rajeev. "Discrete element modelling of silicon nitride ceramics crack formation and propagation in indentation test and four point bending test /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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28

Valente, Rossana. "Utilitarian ceramics in the Byzantine Peloponnese (8th - 13th century) : the economics of the ceramics and ceramic production in the context of economic cycles." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/33048.

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Utilitarian unglazed ceramics constitute an important range of evidence for investigating cultural and economic identities. The present research project analyses commonly used, unglazed Byzantine vessels from stratified contexts, excavated in Ancient Corinth (ASCSA), in close comparison with vessels from Sparta and Argos (Peloponnese - Greece). The first goal of this thesis is to provide an updated overview of the specific types of unglazed, utilitarian vessels used in these sites. Through a quantitative analysis, applied to ceramics, this study presents a seriation of specific types of unglaz

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29

Pengpat, Kamonpan. "Ferroelectric glass-ceramics." Thesis, University of Warwick, 2001. http://wrap.warwick.ac.uk/66934/.

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Ferroelectric glass-ceramics have been investigated from the Bi203-Ge02, BiOl.s-Ge02-B0I.5, Bi0I.5-Ge02-Te02, 5PbO-3Ge02, PbO-Ge02-NbzOs, and PbsGe30u-PbNbz06-Si02+15%Ah03 systems. DTA, XRD and SEM analysis were used to obtain crystallographic and microstructural information. The dielectric properties and ferroelectric hysteresis loop behaviour of selected samples were determined. The stoichiometric Bjz03:Ge02 (BjzGeOs) composition devitrified on cooling, giving rise to the investigation of new systems BiO\.S-Ge02-B0I.5 and Bi0I.5-Ge02-Te0 2. It was found that the glass-forming region in Bi0I.

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30

Dy, Yan-ting Dianne, and 戴欣婷. "Land for ceramics." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31985154.

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31

Cain, Markys G. "Zirconia toughened ceramics." Thesis, University of Warwick, 1990. http://wrap.warwick.ac.uk/35750/.

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The objectives for the thesis were to generate tough ceramics utiising the toughening mechanisms inherent to zirconia materials. The aims have been realised with the successful fabrication of hot pressed silicon nitride / zirconia composite ceramics. The zirconia was prestabilised with two different types of dopant additives, yttria and ceria, with the intention of understanding the chemical compatibility with the silicon nitride matrix and the overall effect on the subsequent mechanical properties. The volume fraction of added zirconia was also varied. The increased toughness over silicon nit

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32

Dy, Yan-ting Dianne. "Land for ceramics." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25947588.

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33

Cho, Man Ho. "Industries/ influence ceramics." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5440.

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Cultivating the spatial relationship in between utility and sculpture generates my process. I deconstruct, reconstruct and assemble objects; bringing to them a new perspective that simplifies the structure while enhancing the surface and the unassuming nature of the forms. Developing vessels for drinking or pouring serves as the foundation for my study of materials, architectural foundations and elements of utilitarian objects. The functional purpose of the objects becomes minimized due to the structure beneath the surface and the constructed role of the base blurring distinctions between func

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34

Herlich, Jessica Marie. "Shellfishing, Ceramics, and Gender: Shell Midden Ceramics from the Kiskiak Site." W&M ScholarWorks, 2011. https://scholarworks.wm.edu/etd/1539626649.

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35

Ramsey, Melissa. "Manufacturing Ceramics: Ceramic Ecology and Technological Choice in the Upper Cumberland River Valley." UKnowledge, 2013. http://uknowledge.uky.edu/anthro_etds/10.

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Ceramic material culture recovered from archaeological sites has more to offer the researcher than placing the site or strata into a cultural historic timeline. By examining the characteristics of ceramics manufactured during the Woodland Period in southern Kentucky, this thesis answers questions related to the behavior of the potters who lived and worked there. Using the theoretical basis of ceramic ecology and technological choice, this thesis examines the choices made by the potters of two sites, the Long (15Ru17) and Rowena (15Ru10) sites, located along the Cumberland River in Russell Coun

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36

Hays, Kelley Ann. "Anasazi ceramics as text and tool: Toward a theory of ceramic design "messaging"." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185829.

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This study illustrates the importance of finding out whether painted ceramics represent the total repertoire of decorated artifacts that are expected to carry social information. Painted designs on pottery are the focus of study because (1) painted decoration has had great importance in Southwest archaeology for studying social interaction, cultural affiliation, and fine-grained chronology based on stylistic change, and (2) painted decoration is less constrained by technology and intended vessel function than other attributes, and is most free to vary for social or ideological reasons. Two ass

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37

GIANCHANDANI, PARDEEP KUMAR. "Joining of Ceramics and Ceramic Matrix Composites (CMC) for Aerospace and Energy Applications." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2711092.

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SiC-based ceramics and composites (SiC, C/SiC & SiC/SiC) are more and more extensively used as advanced materials for aerospace and energy applications. Existing applications are expanding continuously and require advanced materials, design and joining technologies. The objective of this thesis was to join SiC-based ceramic matrix composites (CMC), ceramics (SiC, Mullite, Alumina) and SiC-based ceramic foams for aerospace and energy applications. The research was aimed to develop strong, oxidation resistant and high temperature stable joints. A novel joining technique defined “RM-Wrap”

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38

Marins, Eleasar Martins [UNESP]. "Otimização e caracterização microestrutural de cerâmicas de carbeto de silício obtidas com material nacional para uso em blindagem balística." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/103735.

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Made available in DSpace on 2014-06-11T19:32:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-10-10Bitstream added on 2014-06-13T19:03:29Z : No. of bitstreams: 1 marins_em_dr_guara_prot.pdf: 7283473 bytes, checksum: 080948824f946973e97d101c513ae685 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Armas de fogo têm sido usadas em periódo dificeis da história, nos quais conflitos entre países têm ocorrido, ou no cotidiano cada vez amis violento das grandes cidades. Neste sentido, a blindagem de veículos, aeronaves e de pessoas é uma necessidade cada vez

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39

Papageorge, Marc Vasilios. "Characterization of metal/ceramic interfaces on aluminum nitride." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/9352.

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40

Shin, Hyunho. "Interface reactions and their influence on properties of SiC fiber-reinforced ceramic matrix composites." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/19122.

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41

Villalobos, Guillermo Roberts. "Strength enhancement of nicalon reinforced lithium aluminosilicate containing a Ta₂O₅ second phase." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/19969.

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42

Yang, Quanzu. "Composite sol-gel ceramics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0019/NQ46453.pdf.

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43

Seerden, Kitty A. M. "Inkjet printing of ceramics." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393981.

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44

Zhu, Zangyuan. "Lead-free piezoelectric ceramics." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.581971.

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Abstract (sommario):

Legislation arising from health and environmental concerns has intensified research into finding suitable alternatives to lead-based electroceramics. Lead zirconate titanate (PZT) has been developed over several decades to become the market-leading piezoelectric ceramic. Lead-free solid solutions based on sodium potassium niobate, Na0.5K0.5NbO3 (NKN), show promising dielectric and piezoelectric properties. 1-2 The related (l-x)( Na0.5K0.5NbO3)-xBiScO3 binary system (NKN-BS) has been reported to exhibit maximum d33 values of 200 pCIN at 2 mol% BS.3 Similarly, an optimal d33 value has been repor

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45

Cash, M. "Ceramics in reducing environments." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597354.

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Coal gasification poses many problems to the materials engineer due to the high temperatures and corrosive gases involved in the process. The main aim of this research is to investigate the influence of a simulated coal gasification environment on the mechanical properties and surface chemistry of a clay bonded SiC filter. This type of material is presently used to filter combustion gases and it is proposed that it may be used in gasification systems between the gasifier and gas turbine to filter particulates that would damage the turbine blades and lining. Three separate gases are used to inv

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46

Al-Irimi, Ilana. "Freeze gelation of ceramics." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391130.

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47

Cheng, Y. "ZrO2Ì²-toughened glass-ceramics." Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233443.

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48

Mahon, Stephen William. "Magnetic properties of ceramics." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358891.

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49

Dong, Chun. "Binder removal in ceramics." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/14101.

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50

Міхно, Світлана Василівна, Свитлана Васильевна Михно, Svitlana Vasylivna Mikhno, and M. Bilokur. "Nanopowders for advanced ceramics." Thesis, Вид-во СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/22616.

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