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Tesi sul tema "Titanium"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Ki, Jun-Wan. "Titanium Sponge on Titanium Substrate for Titanium Electrolytic Capacitor Anodes." Case Western Reserve University School of Graduate Studies / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=case1113244951.

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2

Toner, Andrew Joseph. "Titanium-aluminium and titanium-alkyl Schiff base complexes." Thesis, Manchester Metropolitan University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361566.

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3

Eriksson, Mirva. "Spark plasma sintering and deformation behaviour of Titanium and Titanium/TiB2Spark plasma sintering and deformation behaviour of Titanium and Titanium/TiB2 composites." Licentiate thesis, Stockholms universitet, Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-26122.

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Titanium has been used as a model substance to study how it behaves in a SPS apparatus when heating rate and/or pressure were varied during the sintering and deformation process. The sintering and deformation of Ti in SPS were compared with that occurring in the conventional hot pressing (HP) in order to reveal if there are any positive effects added by the use of SPS. The ductility of Ti was explored in order to understand the sintering and deformation of (Ti) x (TiB2)1-x composites with x = 0.05, 0.1, and 0.2, respectively, expressed in mol ratio. The temperature difference (DT) between the

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4

Nishiguchi, Shigeru. "Bone-bonding Abilities of Alkali- and Heat-treated Titanium and Titaniumu Alloys." Kyoto University, 2000. http://hdl.handle.net/2433/180814.

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5

Adipuri, Andrew Materials Science &amp Engineering Faculty of Science UNSW. "Chlorination of Titanium Oxycarbide and Oxycarbonitride." Publisher:University of New South Wales. Materials Science & Engineering, 2009. http://handle.unsw.edu.au/1959.4/44405.

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The project undertook a systematic study of chlorination of titanium oxycarbide and oxycarbonitride with the aim to develop further understanding of kinetics and mechanisms of the chlorination reactions. The project studied titania, ilmenite ores, and synthetic rutile reduced by carbon in argon and nitrogen and chlorinated at different temperatures, gas flow rates and compositions. Chlorination of titanium suboxides, iron and impurities in ilmenite was also examined. Chlorination of titanium oxycarbide Ti(O,C) or oxycarbonitride Ti(O,C,N) can be implemented at 200 to 400 deg.C, while the comme

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6

Yuan, Fei (Fred) Materials Science &amp Engineering Faculty of Science UNSW. "Properties of titanium matrix composites reinforced with titanium boride powders." Awarded by:University of New South Wales. Materials Science & Engineering, 2007. http://handle.unsw.edu.au/1959.4/40750.

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Metal matrix composites can produce mechanical and physical properties better than those of the monolithic metal. Titanium alloys are widely used matrix materials as they can offer outstanding specific strength, corrosion resistance and other advantages over its competitors, such as aluminium, magnesium and stainless steel. In past decades, titanium matrix composites served in broad areas, including aerospace, military, automobile and biomedical industries. In this project, a revised powder metallurgy method, which contains cold isostatic pressing and hot isostatic pressing, was adopted to re

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7

Rasool, Ghulam. "Tribo-corrosion maps for steels, titanium and titanium carbide materials." Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24939.

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In this project, research work was carried out on the tribo-corrosion behaviour of titanium carbide composite coatings produced by Tungsten Inert Gas (TIG) welding torch melting process on steel and titanium substrates. The integrity of TiC composite coatings were checked and analysed on the substrates. The effects of change in sliding speeds and normal loads on wear behaviours were investigated for dry sliding conditions and tribo-corrosion maps were constructed with a tribo-system approach. The work was carried out in the following phases: In phase I, a fundamental study of the wear behaviou

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8

Jeffers, Elizabeth Ann. "Reaction Synthesis of Titanium Aluminide / Titanium Diboride in-Situ Composites." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/35367.

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Reaction synthesis is a processing technique where the thermal activation energy needed to form a compound is provided by the exothermic heat of formation of the thermodynamically stable product. This type of synthesis has been used to form a variety of ceramics, intermetallics, and in-situ composites. In this work, the effects of changing the stoichiometry of the titanium aluminide matrix, and the effects of extrinsic reaction variables on the behavior of the reaction were studied and compared to theoretical predictions. It was shown that changing the stoichiometry of the titanium aluminid

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9

Cairns, Malcolm. "Titanium particle combustion." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=86572.

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In order to increase the validity of numerical models of the detonation of heterogeneous titanium explosives, experimental results are needed. The combustino of titanium is studied using two experimental techniques. The first technique is the study of the burn time for a single particle over a wide range of initial diameters while altering the oxygen concentration. To accomplish this a new flat flame burner to study particle burn time has been designed. Luminous tracks caused by the light emitted by the combustion of the particles are analyzed and burn time is inferred. Burn time in air and in

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10

Bettley, Alison. "Electroplated titanium coatings." Thesis, Open University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305065.

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11

Williams, Niel Hamilton. "Titanium isotope cosmochemistry." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/titanium-isotope-cosmochemistry(571ae148-1673-4b85-bc10-937284bb53fc).html.

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High precision measurements of Ti isotopes within terrestrial and extra-terrestrial materials were made in order to investigate the processes at work within the early solar system. Variations of Ti isotopes also enabled the investigation of the specific stellar sources that created the material that formed the solar system. Titanium was chosen as it is a refractory element, relatively resistant to secondary processes and found abundantly in all solar system materials. Measurements were performed using a Thermo Fischer Neptune MC-ICPMS at the Open University, Milton Keynes. Various samples of c

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12

Turner, Sam. "Titanium milling strategies." Thesis, University of Sheffield, 2009. http://etheses.whiterose.ac.uk/15127/.

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This thesis explores the subject of titanium milling and identifies the need for development of titanium milling strategies to address the key process limitations of chatter and tool wear. These subjects are typically studied in isolation and little work has previously been undertaken on titanium milling dynamics. Titanium is often perceived as difficult to machine as the very properties such as high strength at high temperature and low thermal conductivity that make it an attractive engineering material can cause rapid tool wear and limit process parameters. Titanium alloys are increasingly p

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13

Mariscal, Muñoz Eduardo [UNESP]. "Diferenciação de osteoblastos cultivados sobre superfícies de titânio modificados por irradiação com laser Yb: YAG pulsado de alta potencia." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/97275.

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Made available in DSpace on 2014-06-11T19:28:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-04-06Bitstream added on 2014-06-13T19:16:49Z : No. of bitstreams: 1 mariscalmunoz_e_me_arafo.pdf: 3090290 bytes, checksum: 16c5f9ca343ea1d3e9b942ecb341ffbb (MD5)<br>A osseointegração, requisito indispensável para o sucesso dos implantes dentários, é um processo lento, caracterizado, sequencialmente, pelas etapas de adesão, diferenciação e proliferação celular, bem como pela aposição e mineralização da matriz óssea depositada por osteoblastos. Acelerar o processo de osseointegração significa

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14

Faverani, Leonardo Perez [UNESP]. "Efeitos de diferentes concentrações de dextrose e lipopolissacarídeo no comportamento corrosivo da liga Ti-6Al-4V com superfície usinada e tratada com duplo ataque ácido." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/101072.

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Made available in DSpace on 2014-06-11T19:31:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-08-26Bitstream added on 2014-06-13T19:01:27Z : No. of bitstreams: 1 000737176.pdf: 2233924 bytes, checksum: be9f98eec022d58f2c75519afa00ec37 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Objetivos: Avaliar o comportamento corrosivo da liga Ti-6Al-4V em função de sua superfície polida ou condicionada por meio de duplo ataque ácido, em simulador de fluidos corporais (SFC) com diferentes concentrações de dextrose (0; 5mM; 7,5 mM e 15 mM) e lipopopolissacarídeo

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15

Almussa, Amanda Fahning Magno [UNESP]. "Avaliação in vivo e in vitro do efeito do tempo sobre molas fechadas de níquel-titânio." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/104497.

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Made available in DSpace on 2014-06-11T19:33:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-03-15Bitstream added on 2014-06-13T18:45:01Z : No. of bitstreams: 1 almussa_afm_dr_arafo.pdf: 1982978 bytes, checksum: 078c30ee2ec08d13b4ca6d31af723b59 (MD5)<br>Determinar in vivo e in vitro o efeito do tempo sobre as propriedades mecânicas de molas helicoidais fechadas de níquel-titânio. Métodos: Três artigos científicos foram redigidos e utilizados para a avaliação dos propósitos apresentados. Resultados: No artigo 1 (in vivo), o tempo e a ativação influenciaram significantemente a taxa d

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16

Jones, Kayleigh Elizabeth. "Interactions of Microbial Siderophores with Titanic Ions and Titanium-Bearing Minerals." Diss., Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/434374.

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Chemistry<br>Ph.D.<br>Transition metals play an important role in many biological processes. Iron is essential for almost every organism, but its bioavailability is limited due to the low solubility of Fe(III) in aqueous environments. Microbial siderophores help solubilize and sequester iron(III). In solution, siderophores like desferrioxamine B (DFOB) are also avid binders of Ti(IV). Ti(IV) is chemically similar to Fe(III), and the use of usually-inert TiO2 is increasing in products such as sunscreens and paint. The surface of titanium metal in joint replacements and implants is oxidized to f

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17

Hurysz, Kevin Michael. "The processing of titanium hydride powders into uniform hollow spheres." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/19502.

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18

Lee, Ho-Rim. "Comparative study of bond characteristics between titanium-titanium alloy and ceramic." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972776354.

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19

Hill, Davion M. "Microstructure and mechanical properties of titanium alloys reinforced with titanium boride." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1150402807.

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20

Flinn, C. "Photocatalytic reactions of alchohols on titanium dioxide and platinized titanium dioxide." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380187.

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21

Janzeer, Yasmeen. "Surface modification of titanium and titanium alloys to enhance bone healing." Thesis, King's College London (University of London), 2013. https://kclpure.kcl.ac.uk/portal/en/theses/surface-modification-of-titanium-and-titanium-alloys-to-enhance-bone-healing(04574a0c-b593-47ef-a002-608cbe67a04b).html.

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Titanium and Its alloys have been used for many years as the material of choice for fabrication of dental, orthopaedic and maxillofacial implants, due to their excellent mechanical properties, biocompatibility, and the ability to osseointegrate with the surrounding bone. In order to improve the bioactivity and osseointegration of titanium implants, especially in compromised bone, surface modification of the implant surface and surface coatings have been introduced. There are different kinds of surface modification, such as, grinding, plasma spraying, sputter coatings, and alkaline treatment. M

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22

Gómez, Palomino Alejandro. "Titanium(IV) enolate chemistry applied to the stereoselective construction of C–C and C–O bonds. New ionic and radical processes." Doctoral thesis, Universitat de Barcelona, 2018. http://hdl.handle.net/10803/665122.

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In the present Thesis we continued a previous study of the nucleophilic character of titanium(IV) enolates. Particularly,we focused our attention on the analysis of substrate-controlled Michael additions to enones and other acceptors.Thus, the Michael addition of (S)-2-benzyloxy-3-pentanoneto enones was thoroughly evaluatedin Chapter 1. In the case of vinyl ketones, the best reaction conditions involved the use of two TiCl4 equivalents and afforded the 2,4-antiadducts as single diastereomers in excellent yields. In addition, the developed methodology was also evaluated with β- substituted enon

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23

Barnett-Ritcey, Dwayne D. Elbestawi Mohamed Abdel Aziz. "High-speed milling of titanium and gamma-titanium aluminide: An experimental investigation /." *McMaster only, 2004.

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24

Strutt, Elizabeth R. "Combustion synthesis, structure and transformation characteristics of titanium carbide-nickel titanium composites /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2004. http://wwwlib.umi.com/cr/ucsd/fullcit?p3129952.

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25

Eriksson, Mirva. "Spark plasma sintering and deformation behaviour of Titanium and Titanium/TiB₂Spark plasma sintering and deformation behaviour of Titanium and Titanium/TiB₂ composites." Licentiate thesis, Stockholm University, Department of Physical, Inorganic and Structural Chemistry, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-26122.

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<p>Titanium has been used as a model substance to study how it behaves in a SPS apparatus when heating rate and/or pressure were varied during the sintering and deformation process. The sintering and deformation of Ti in SPS were compared with that occurring in the conventional hot pressing (HP) in order to reveal if there are any positive effects added by the use of SPS. The ductility of Ti was explored in order to understand the sintering and deformation of (Ti) x (TiB2)1-x composites with x = 0.05, 0.1, and 0.2, respectively, expressed in mol ratio. The temperature difference (DT) between t

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26

Bilgi, Eda. "Production Of Titanium Diboride." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12608121/index.pdf.

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Titanium diboride was produced both by volume combustion synthesis (VCS) and by mechanochemical synthesis through the reaction of TiO2, B2O3 and metallic Mg. Reaction products were expected to be composed of TiB2 and MgO. However, side products such as Mg2TiO4, Mg3B2O6, MgB2 and TiN were also present in the products obtained by volume combustion synthesis. Formation of TiN could be prevented by conducting the volume combustion synthesis under argon atmosphere. Mg2TiO4 did not form when 40% excess Mg was used. Wet ball milling of the products before leaching was found to be effective in removal

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27

Severin, G. W., J. Fonslet, A. I. Jensen, and F. Zhuravlev. "Hydrolytically stable Titanium-45." Helmholtz-Zentrum Dresden - Rossendorf, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-166402.

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Introduction Titanium-45, a candidate PET isotope, is under-employed largely because of the challenging aqueous chemistry of Ti(IV). The propensity for hydrolysis of Ti(IV) compounds makes radio-labeling difficult and excludes 45Ti from use in bio-conjugate chemistry. This is unfortunate because the physical characteristics are extremely desirable: 45Ti has a 3 hour half-life, a positron branching ratio of 85 %, a low Eβmax of 1.04 MeV, and negligible secondary gamma emission. In terms of isotope production, 45Ti is transmuted from naturally mono-isotopic 45Sc by low energy proton irradiation

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28

Dunn, Simon Charles. "New titanium imido complexes." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320787.

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29

Hollis, A. C. "Stress corrosion of titanium." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383978.

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30

Cooper, Robert Thomas. "η8-Permethylpentalene titanium chemistry". Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:c4c3911b-1924-4e2f-a750-d07599900756.

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The focus of this thesis is the synthesis of organometallic complexes incorporating the η8-permethylpentalene titanium moiety (η<sup>8</sup>-Pn*Ti), their characterisation, and their reactivity with small molecules. <b>Chapter One</b> summarises the chemistry of the pentalene molecule, from its instability in the free state to the incorporation of the hydrocarbon into organometallic complexes. The chapter continues with a review of the coordination modes available to Pn and concludes with a brief discussion on the effects of permethylation of hydrocarbon ligands and the advent of permethylpent

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31

Barbero, Bernal Laura Isabel. "Cyclic Behavior of Superelastic Nickel-Titanium and Nickel-Titanium-Chromium Shape Memory Alloys." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4937.

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Shape memory alloys (SMAs) are a class of alloys that display the unique ability to undergo nonlinear deformations and return to their original shape when heat is applied or the stress causing the deformation is removed. This unique shape memory characteristic is a result of a martensitic phase-change, which can be temperature induced (shape memory effect) or stress induced (superelastic effect). In this study, the cyclical behavior of NiTi, a binary shape memory alloy, is compared to the cyclical behavior of NiTiCr, a ternary SMA. The purpose of this study is to compare the behavior of a 0.

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32

Bolívar, León Rafael [Verfasser]. "Synthesis of titanium powder by magnesiothermic reduction from titanium dioxide / Rafael Bolívar León." Aachen : Shaker, 2019. http://d-nb.info/1188550675/34.

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33

Johnson, Saccha Ellen. "Atmospheric pressure chemical vapour deposition of titanium nitride from titanium tetrachloride and ammonia." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242208.

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34

Molchan, Tatsiana. "Generation of porous and nanotubular anodic films on titanium and titanium-aluminium alloy." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/generation-of-porous-and-nanotubular-anodic-films-on-titanium-and-titaniumaluminium-alloy(d20970de-6692-48e6-b5f6-3456bcec5e3e).html.

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This project was focused on the generation of porous and nanotubular anodic films on titanium and Ti-6wt.%Al alloy, and investigation of the key factors responsible for a transition between porous and nanotubular morphologies. Advanced analytical techniques were employed for characterisation of the anodic films, in particular scanning and transmission electron microscopies, including analytical transmission electron microscopy, Raman spectroscopy, nuclear reaction analysis, Rutherford backscattering spectroscopy and atomic force microscopy. Preparation of electron transparent sections for anal

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35

Zgrabik, Christine Michelle. "Wide Tunability of Magnetron Sputtered Titanium Nitride and Titanium Oxynitride for Plasmonic Applications." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:33493259.

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Transition metal nitrides have recently garnered much interest as alternative materials for robust plasmonic device architecture including potential applications in solar absorbers, photothermal medical therapy, and heat-assisted magnetic recording. Titanium nitride (TiN) is one such potential candidate. One advantage of the transition metal nitrides is that their optical properties are tunable according to the deposition conditions. The controlled achievement of tunability, however, is also a challenge. Although the formation of TiN has been the subject of numerous previous studies, a thoroug

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36

Blank, Jonathan P. "Effect of boron additions on microstructure & mechanical properties of titanium alloys produced by the Armstrong process." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1198718818.

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Poondla, Narendra Babu. "A STUDY OF WELDED BUILT-UP BEAMS MADE FROM TITANIUM AND A TITANIUM ALLOY." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1271095999.

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38

Aleixo, Giorgia Taiacol. "Obtenção, caracterização microestrutural e mecanica de ligas Ti-Nb-Sn aplicadas em implantes ortopedicos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263184.

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Orientadores: Rubens Caram Junior, Conrado Ramos Moreira Afonso<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-15T14:37:29Z (GMT). No. of bitstreams: 1 Aleixo_GiorgiaTaiacol_D.pdf: 25669452 bytes, checksum: 43f10d141f1b3e5a6d696930ee2f86ec (MD5) Previous issue date: 2009<br>Resumo: Este trabalho trata da preparação, processamento e caracterização microestrutral e mecânica de ligas Ti-Nb-Sn tipo ß visando a fabricação de dispositivos ortopédicos para implante. Amostras contendo Ti com teores de 25, 30 e 35% em p

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Cumba, Loanda Raquel [UNESP]. "Preparação e aplicação eletroanalítica de complexos metálicos formados a partir de titânio (IV) e ácido fosfórico seguindo uma nova rota de síntese." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/97899.

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Made available in DSpace on 2014-06-11T19:29:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-28Bitstream added on 2014-06-13T18:38:50Z : No. of bitstreams: 1 cumba_lr_me_ilha.pdf: 1172695 bytes, checksum: 022bcc613710f630671a10681e48bedb (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O presente trabalho descreve a preparação, caracterização e aplicação eletroanalítica de um compósito formado por Titânio fosfatado modificado com metais de transição (Ag1+, Co2+ e Ni2+) e hexacianoferrato de potássio. A primeira etapa consistiu em reagir o isopropóx

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Capellato, Patricia [UNESP]. "Caracterização da superfície da liga Ti-30Ta após crescimento de nanotubos." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/103758.

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Made available in DSpace on 2014-06-11T19:32:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-23Bitstream added on 2014-06-13T20:27:52Z : No. of bitstreams: 1 capellato_p_dr_guara.pdf: 1337923 bytes, checksum: 3edc5b93305051c3258b073892d9965d (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Titânio CP e a liga Ti6Al4V são amplamente empregados na fabricação de componentes para aplicações biomédicas. No entanto, estes materiais podem causar problemas de saúde em função da liberação de íons metálicos citotóxicos e reabsorção do osso adjacente devido a

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41

Rigolin, Maria Silvia Mauricio [UNESP]. "Influência de características físicas e química dos materiais de abutments de implantes em zircônia e titânio na adesão e viabilidade de células epiteliais gengivaiS OBA-9." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/110832.

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Made available in DSpace on 2014-12-02T11:16:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-03-11Bitstream added on 2014-12-02T11:21:06Z : No. of bitstreams: 1 000796267.pdf: 2331595 bytes, checksum: a54fbece3e4646af27b186ebe1b5047b (MD5)<br>Dada à necessidade de uma efetiva barreira tecidual precoce ao redor dos implantes osseointegrados, o presente estudo avaliou, in vitro, a influência das características físicas e químicas de materiais simulando superfícies de abutments de implantes em titânio (T) e zircônia (ZrO2) na adesão de células epiteliais gengivais OBA-9. Para este est

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Souza, Jéssica Porto [UNESP]. "Estudo comparativo de filmes de corantes fenotiazínicos na superfície de eletrodo de carbono vítreo e adsorvidos em titânio fosfatado e suas aplicações eletroanalíticas." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/127943.

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Made available in DSpace on 2015-09-17T15:26:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-06-19. Added 1 bitstream(s) on 2015-09-17T15:45:19Z : No. of bitstreams: 1 000847760.pdf: 3041903 bytes, checksum: 3d088ce3b9a41318446f3ae996281823 (MD5)<br>O presente trabalho descreve a preparação, caracterização e aplicação eletroanalítica de um compósito formado por titânio fosfatado modificado com os corantes da classe das fenotiazinas, a saber: azul de metileno (TiPAM), azul de orto toluidina (TiPAO) e azure A (TiPAA). Os compósitos foram caracterizados por técnicas espectroscópicas t

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McCormick, John. "Chemistry of titanium dioxide nanoparticles." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 10.93 Mb., 224 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3220706.

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Odelros, Stina. "Tool wear in titanium machining." Thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-176944.

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The present work was performed at AB Sandvik Coromant as a part in improving the knowledge and understanding about wear of uncoated WC/Co cutting tools during turning of titanium alloy Ti-6Al-4V. When machining titanium alloys, or any other material, wear of the cutting tools has a huge impact on the ability to shape the material as well as the manufacturing cost of the finished product. Due to the low thermal conductivity of titanium, high cutting temperatures will occur in narrow regions near the cutting edge during machining. This will result in high reaction and diffusion rates, resulting

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Dewan, Mohammad Ashikur Rahman Materials Science &amp Engineering Faculty of Science UNSW. "Carbothermal synthesis of titanium oxycarbide." Awarded By:University of New South Wales. Materials Science & Engineering, 2009. http://handle.unsw.edu.au/1959.4/44511.

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The aim of the project was to establish the rate and mechanisms of solid stage reduction of titania and ilmenite ores. The project examined carbothermal reduction of titania and various types of ilmenite ores in argon, helium, hydrogen, and their mixtures. Effect of CO in the gas atmosphere on reduction behavior of titania and primary ilmenite ore was also studied. Isothermal and non-isothermal reduction experiments were conducted in a fixed bed reactor in the high temperature furnace in the temperature range up to 1500oC. The off-gas composition in the reduction process was monitored by a CO/

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Noël, James J. "The electrochemistry of titanium corrosion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0028/NQ51663.pdf.

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Matykina, Endzhe. "Plasma electrolytic oxidation of titanium." Thesis, University of Manchester, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548672.

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Harris, R. "Atomistic simulations of titanium carbide." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603742.

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This thesis comprises three related studies of titanium carbide, a refractory material, using atomistic simulations based on the Tight Binding model of cohesion. The first study is a detailed critique of a recently published Tight Binding parameterisation for titanium carbide. In addition to correcting a large number of issues in the original source, the optimisation and suitability of the model were also investigated. In the second study, the same Tight Binding model was applied to the determination of the order structure of TiC<SUB>0.5</SUB>. Owing to a peculiarity of this structure, its uni

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Unosson, Erik. "Antibacterial Strategies for Titanium Biomaterials." Doctoral thesis, Uppsala universitet, Tillämpad materialvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-249181.

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Titanium and titanium based alloys are widely used in dentistry and orthopedics to replace hard tissue and to mend broken bones. It has become a material of choice due to its low density, high strength, good biocompatibility and its capacity to integrate closely with the bone. Today, modern materials and surgical techniques can enable patients to live longer, and aid in maintaining or regaining mobility for a more fulfilling life. There are, however, instances where implants fail, and one of the primary causes for implant failure is infection. This thesis deals with two possible ways of reduci

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Harrison, Robert William. "Reduction of titanium dioxide photoactivity." Thesis, University of Newcastle Upon Tyne, 2006. http://hdl.handle.net/10443/856.

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Titanium dioxide, "titania" is used for a wide range of everyday applications, such as in sunblocks, paints, paper, and some plastics. For these uses it is necessary to reduce the photoactivity of the titania for either product quality or consumer safety. Titanium dioxide also finds application in the field of photocatalysis for pollution abatement and in this instance a high photoactivity is desirable. This thesis describes the development and characterisation of two main strategies intended to reduce titania photoactivity: the addition of iron dopants to suppress the number of surface radica

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