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Dissertations / Theses on the topic 'Palladium alloys – Thermal properties'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Coruh, Ali. "Molecular-dynamics Investigation Of The Dynamic Properties Of Pd And Al Metals, And Their Alloys." Phd thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12604716/index.pdf.

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The dynamic properties of Palladium (Pd) and Aluminum (Al) metals and their alloys are investigated by means of Molecular Dynamics using the Quantum Sutton-Chen force field in five different concentrations. Calculations have been carried out for liquid structures. Although this study is done for liquid structures, basic solid state properties are also investigated to prove the validity of potential parameters. Results are compared with each other and with experimental, theoretical and simulated results. Liquid state transferability of Quantum Sutton-Chen parameters have been investigated and d

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2

Dempsey, Benjamin. "Thermal properties of linear cellular alloys." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17968.

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3

Li, Dongfa. "Microstructures and mechanical properties of palladium-silver dental casting alloys." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1143105462.

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4

Bönisch, Matthias. "Structural properties, deformation behavior and thermal stability of martensitic Ti-Nb alloys." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-207914.

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Ti-Nb alloys are characterized by a diverse metallurgy which allows obtaining a wide palette of microstructural configurations and physical properties via careful selection of chemical composition, heat treatment and mechanical processing routes. The present work aims to expand the current state of knowledge about martensite forming Ti-Nb alloys by studying 15 binary Ti-c_{Nb}Nb (9wt.% ≤ c_{Nb} ≤ 44.5wt.%) alloy formulations in terms of their structural and mechanical properties, as well as their thermal stability. The crystal structures of the martensitic phases, α´ and α´´, and the influence

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5

Tanrikulu, Ahmet Alptug. "Microstructure and Mechanical Properties of Additive Manufacturing Titanium Alloys After Thermal Processing." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/4088.

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Titanium alloys are widely used for aerospace and biomaterial applications since their high specific strength, and high corrosion resistivity. Besides these properties, titanium is an excellent biocompatible material widely used for internal body implants. Because the products have complex geometries in both applications, Additive Manufacturing (AM) methods have been recently applied for production. AM methods can process a direct 3-D shape of the final product, decrease total production time and cost. However, high residual stress of the final product limits the application of AM components,

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6

Kim, J. H. "Simulation of microsegregation during binary alloy solidification." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/24072.

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7

Parsons, Mark James. "An investigation of the thermal properties of some strongly correlated electron systems." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/27183.

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The correlated electron systems which are the subject of this thesis are the strong electron–phonon coupling superconductor HfV2, and the localised moment magnetic systems of the alloy series Pd2REIn (RE = Gd, Tb, Ho, Er and Yb).

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8

Van, Leeuwen Robert Alan. "Structural and magnetic properties of cobalt/palladium superlattices, ultra-thin cobalt films and manganese antimony alloys." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186431.

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Structural, magnetic, and magneto-optical properties of Co/Pd and Co/Pd/Cu superlattices, ultra-thin Co films and MnSb alloys have been studied. The superlattices and Co films were grown by molecular beam epitaxy (MBE) while the MnSb alloy films were made by sputtering techniques. Several x-ray diffraction techniques were used to analyze the physical structure of the superlattices and alloys. Magnetometry techniques were used to determine some of the room temperature and temperature dependent magnetic properties of the films. In situ and ex situ measurements of the magneto-optical properties o

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9

Papazoglou, Efstratios. "On porcelain bonding, oxidation, mechanical properties and high-temperature distortion of high-palladium dental casting alloys." The Ohio State University, 1999. http://catalog.hathitrust.org/api/volumes/oclc/47770015.html.

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Thesis (Ph. D.)--Ohio State University, 1999.<br>Advisor: William A. Brantley, Oral Biology Program. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

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10

Turi, Tibor. "Thermal and thermodynamic properties of fully dense nanocrystalline Ni and Ni-Fe alloys." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq20593.pdf.

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11

Liao, Hao-Hsiang. "Thermal and thermoelectric properties of nanostructured materials and interfaces." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/19198.

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Many modern technologies are enabled by the use of thin films and/or nanostructured composite materials. For example, many thermoelectric devices, solar cells, power electronics, thermal barrier coatings, and hard disk drives contain nanostructured materials where the thermal conductivity of the material is a critical parameter for the device performance. At the nanoscale, the mean free path and wavelength of heat carriers may become comparable to or smaller than the size of a nanostructured material and/or device. For nanostructured materials made from semiconductors and insulators, the addit

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12

Pagalthivarthi, Krishnan V. "Thermosolutal convection and related transport processes in binary alloy solidification." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/18245.

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13

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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14

Pratama, Killang [Verfasser]. "Pulsed electrodeposited nanocrystalline Co-Cu alloys : synthesis and characterisation of thermal and mechanical properties / Killang Pratama." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2021. http://d-nb.info/1241117330/34.

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15

ARRUDA, CARLOS do C. "Analise mecanodinamica de ligas de niquel-titanio para aplicacao ortodontica." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11004.

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16

Brosi, Justin Keith. "Mechanical Property Evolution of Al-Mg Alloys Following Intermediate Temperature Thermal Exposure." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1270163761.

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Thesis (Master of Sciences (Engineering))--Case Western Reserve University, 2010<br>Department of Materials Science and Engineering Title from PDF (viewed on 2010-05-25) Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center

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17

Shek, Gordon Kai-Wah. "The effect of material properties, thermal and loading history on delayed hydride cracking in Zr-2.5 Nb alloys." Thesis, University of Manchester, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629567.

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Zr-2.5 Nb pressure tubes in CANDU reactors are susceptible to delayed hydride cracking (DHC), which is a sub-critical cracking process requiring hydrogen diffusion to a stress concentrator, precipitation, growth and fracture of hydrides. Service-induced and manufacturing flaws are present in some pressure tubes and these flaws may act as crack initiators. An engineering approach has been developed to assess the susceptibility of flaws to DHC. In this methodology, DHC is separated into the initiation and growth stages, and in terms of initiation, flaws are classified as blunt, sharp or crack-li

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18

Napolitano, Ralph E. Jr. "Finite differenc-cellular automation modeling of the evolution of interface morphology during alloy solidification under geometrical constraint : application to metal matrix composite solidification." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/32810.

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19

Kart, Hasan Huseyin. "Molecular Dynamics Study Of Random And Ordered Metals And Metal Alloys." Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605467/index.pdf.

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The solid, liquid, and solidification properties of Pd, Ag pure metals and especially PdxAg1-x alloys are studied by using the molecular dynamics simulation. The effects of temperature and concentration on the physical properties of Pdx$Ag1-x are analyzed. Sutton-Chen (SC) and Quantum Sutton-Chen (Q-SC) many-body potentials are used as interatomic interactions which enable one to investigate the thermodynamic, static, and dynamical properties of transition metals. The simulation results such as cohesive energy, density, elastic constants, bulk modulus, pair distribution functions, melting poin

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20

FUSCO, ALEXANDRE G. "Estudo da influência do zircônio e gálio nas propriedades magnéticas e na microestrutura dos imãs permanentes à base de praseodímio." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11453.

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21

Mortensen, Clay Dustin. "The effect of grain size, alloy composition and turbostratic disorder on the thermal and electrical properties of Bi₂Te₃ based materials /." Connect to title (abstract only) online (ProQuest), 2008. http://proquest.umi.com/pqdweb?did=1690937581&sid=1&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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22

Brindley, Kyle A. "Thermomechanical fatigue of Mar-M247: extension of a unified constitutive and life model to higher temperatures." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51852.

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The goal of this work is to establish a life prediction methodology for thermomechanical loading of the Ni-base superalloy Mar-M247 over a larger temperature range than previous work. The work presented in this thesis extends the predictive capability of the Sehitoglu-Boismier unified thermo-viscoplasticity constitutive model and thermomechanical life model from a maximum temperature of 871C to a maximum temperature of 1038C. The constitutive model, which is suitable for predicting stress-strain history under thermomechanical loading, is adapted and calibrated using the response from isotherma

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23

Bönisch, Matthias [Verfasser], Werner [Akademischer Betreuer] [Gutachter] Skrotzki, and Jan van [Gutachter] Humbeeck. "Structural properties, deformation behavior and thermal stability of martensitic Ti-Nb alloys / Matthias Bönisch ; Gutachter: Werner Skrotzki, Jan van Humbeeck ; Betreuer: Werner Skrotzki." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://d-nb.info/1114067873/34.

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24

Harzer, Tristan Philipp [Verfasser], Gerhard [Gutachter] Dehm, and Alfred [Gutachter] Ludwig. "Nanostructure, thermal stability and mechanical properties of vapor phase deposited supersaturated Cu-Cr thin film alloys / Tristan Philipp Harzer. Gutachter: Gerhard Dehm ; Alfred Ludwig." Bochum : Ruhr-Universität Bochum, 2016. http://d-nb.info/1102525103/34.

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25

Adair, Benjamin Scott. "Thermo-mechanical fatigue crack growth of a polycrystalline superalloy." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/46027.

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A study was done to determine the temperature and load interaction effects on the fatigue crack growth rate of polycrystalline superalloy IN100. Temperature interaction testing was performed by cycling between 316°C and 649°C in blocks of 1, 10 and 100 cycles. Load interaction testing in the form of single overloads was performed at 316°C and 649°C. After compiling a database of constant temperature, constant amplitude FCGR data for IN100, fatigue crack growth predictions assuming no load or temperature interactions were made. Experimental fatigue crack propagation data was then compared and c

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26

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

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

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27

Amaro, Robert L. "Thermomechanical fatigue crack formation in a single crystal Ni-base superalloy." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/37172.

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This research establishes a physics-based life determination model for the second generation single crystal superalloy PWA 1484 experiencing out-of-phase thermomechanical fatigue (TMF). The life model was developed as a result of a combination of critical mechanical tests, dominant damage characterization and utilization of well-established literature. The resulting life model improves life prediction over currently employed methods and provides for extrapolation into yet unutilized operating regimes. Particularly, the proposed deformation model accounts for the materials' coupled fatigue-envi

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28

SILVA, SILVIO L. V. da. "Caracterização da liga de níquel 600 com estrutura ultrafina processada pela técnica de deformação plástica intensa (DPI)." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10572.

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29

Van, der Walt Jacobus Gert. "Radiation field shaping through low temperature thermal-spray in radiotheraphy." Thesis, Bloemfontein : Central University of Technology, Free State, 2009. http://hdl.handle.net/11462/116.

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Thesis (D. Tech.) -- Central University of Technology, Free State, 2009<br>Superficial cancerous lesions are commonly treated through low energy X-ray or electron radiation in radiotherapy. The treatment units that produce the radiation are equipped with square, rectangular and round applicators of different sizes. These applicators attach to the treatment units and define the radiation field size applied during treatment. An applicator is chosen to fit the shape of the cancerous lesion on the patient as closely as possible. Since cancerous lesions are irregular in shape, there will always be

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30

Tang, Fei. "The Microstructure-Processing-Property Relationships in an Al Matrix Composite System Reinforced by Al-Cu-Fe Alloy Particles." Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/835313-syGDu9/webviewable/.

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31

Tao, Zhaojun. "Experimental Study and Modelling of Mechanical Features in an Oxide Layer under Thermal Loadings." Thesis, Troyes, 2018. http://www.theses.fr/2018TROY0003.

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La qualité des couches protectrices d’oxyde thermiques se développant à haute température à la surface des matériaux métalliques dépend des niveaux de contraintes générées et de leurs mécanismes de relaxation. Dans ce travail, un modèle et un outil d'identification ont été développés afin d'étudier l'évolution des contraintes dans les systèmes métal / oxyde sous charge thermique, ainsi que l'identification du mécanisme et des propriétés des matériaux. Le modèle est appliqué en utilisant les données expérimentales fournies par la littérature pour le système NiAl / Al2O3. La valeur de l'énergie

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32

Krings, Andreas. "Iron Losses in Electrical Machines - Influence of Material Properties, Manufacturing Processes, and Inverter Operation." Doctoral thesis, KTH, Elektrisk energiomvandling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145243.

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As the major electricity consumer, electrical machines play a key role for global energy savings. Machine manufacturers put considerable efforts into the development of more efficient electrical machines for loss reduction and higher power density achievements. A consolidated knowledge of the occurring losses in electrical machines is a basic requirement for efficiency improvements. This thesis deals with iron losses in electrical machines. The major focus is on the influences of the stator core magnetic material due to the machine manufacturing process, temperature influences, and the impact

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33

Grosset, Lisa. "Développement et validation d’un modèle de vieillissement thermique d’alliages d’aluminium pour application aéronautique." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEM010.

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Les exigences des clients du secteur aéronautique imposent aux entreprises de prendre en compte pour le dimensionnement les effets de la température sur toute la durée de vie du produit. Cependant, aucune loi ne permet actuellement de prévoir l’impact du vieillissement thermique sur le comportement des matériaux. Ce travail a pour objectif de comprendre le mécanisme de vieillissement thermique des alliages d’aluminium et son impact sur les propriétés mécaniques, mais surtout d’acquérir un outil performant capable d’obtenir rapidement des données matériaux après vieillissement.Au cours de cette

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34

Radutoiu, Nicoleta. "Influence des traitements thermiques sur le comportement en corrosion à l'échelle locale de l'alliage d'aluminium en AW 2024." Phd thesis, Toulouse, INPT, 2013. http://oatao.univ-toulouse.fr/17926/1/Radutoiu_N.pdf.

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L’influence de traitements thermiques de revenu sur la corrosion localisée ainsi que sur la résistance mécanique en traction de l’alliage d’aluminium 2024 a été étudiée. Cet alliage est utilisé en construction aéronautique, à l’état T351 (mise en solution, trempe, écrouissage et maturation) grâce aux ses propriétés mécaniques élevées ; à l’état T6 (mise en solution, trempe, revenu au pic de dureté) il présente un bon compromis résistance/ductilité. Par contre, la présence d’hétérogénéités microstructurales le rend sensible à la corrosion localisée. Le traitement T7 (mise en solution, trempe, r

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35

Bello, Nicolas. "Effets d'un vieillissement longue durée sur deux alliages d'aluminium de la série 2000." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30301/document.

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Ces travaux de thèse réalisés entre l'IRT Saint Exupéry et le CEMES, Université de Toulouse, CNRS ont pour objet l'étude d’alliages de la série 2000 pour des utilisations à des températures intermédiaires, de l'ordre de 200°C. La possibilité d'utiliser ces matériaux à cette température permettrait aux industriels du secteur aéronautique de réduire les coûts de production d'une part, et de diminuer les coûts d'exploitation des aéronefs ainsi plus légers d'autre part. Afin de répondre à cette problématique industrielle, deux nuances commerciales ont été considérées : le 2219-T851 et le 2050-T84.

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OLIVEIRA, José Ricardo Ferreira. "Identificação da difusividade térmica de ligas metálicas utilizando um campo de temperatura periódico." Universidade Federal de Campina Grande, 2017. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1488.

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Submitted by Emanuel Varela Cardoso (emanuel.varela@ufcg.edu.br) on 2018-08-17T17:30:45Z No. of bitstreams: 1 JOSÉ RICARDO FERREIRA OLIVEIRA – DISSERTAÇÃO (PPGEM) 2017.pdf: 2648257 bytes, checksum: 5e08d81aaa5973d7c6fd8bac23c313cc (MD5)<br>Made available in DSpace on 2018-08-17T17:30:45Z (GMT). No. of bitstreams: 1 JOSÉ RICARDO FERREIRA OLIVEIRA – DISSERTAÇÃO (PPGEM) 2017.pdf: 2648257 bytes, checksum: 5e08d81aaa5973d7c6fd8bac23c313cc (MD5) Previous issue date: 2017-11-30<br>CNPq<br>A caracterização termofísica dos materiais utilizados na Engenharia é de grande importância par

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Barthem, Vitoria Maria T. Souza. "Propriétés magnétiques et magnétoélastiques de composés hexagonaux RNi5 (R = Terre rare)." Grenoble 1, 1987. http://www.theses.fr/1987GRE10044.

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Observation d'un changement de la direction de facile aimantation dans smni::(5) vers 160 k. Interpretation quantitative des effets magnetoelastiques et de la susceptibilite magnetique du troisieme ordre mesures dans prni::(5). Observation d'une anomalie de dilatation dans tmni::(5) a t::(c) provenant d'une striction d'echange

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Zaher, Ghenwa. "Microstructure et comportement mécanique du cuivre et d'un alliage Cu-Sn nanostructurés par déformation plastique intense et implantés à l'azote." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR031/document.

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Les alliages de cuivre sont utilisés dans de nombreuses applications électriques car ils offrent un bon compromis de résistance mécanique, de résistance à la corrosion et de conductivité électrique. Cependant pour certaines applications comme les contacteurs électriques, des matériaux plus performants sont recherchés. L’affinement de la taille de grains et l’implantation ionique sont deux voies que nous avons explorées dans ce but. Afin d’obtenir un bon compromis entre la dureté, la résistance à la corrosion et la conductivité électrique du cuivre pur (99,90%) et un bronze commercial monophasé

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Antonysamy, Alphons Anandaraj. "Microstructure, texture and mechanical property evolution during additive manufacturing of Ti6Al4V alloy for aerospace applications." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/microstructure-texture-and-mechanical-property-evolution-during-additive-manufacturing-of-ti6al4v-alloy-for-aerospace-applications(03c4d403-822a-4bfd-a0f8-ef49eb65e7a0).html.

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Additive Manufacturing (AM) is an innovative manufacturing process which offers near-net shape fabrication of complex components, directly from CAD models, without dies or substantial machining, resulting in a reduction in lead-time, waste, and cost. For example, the buy-to-fly ratio for a titanium component machined from forged billet is typically 10-20:1 compared to 5-7:1 when manufactured by AM. However, the production rates for most AM processes are relatively slow and AM is consequently largely of interest to the aerospace, automotive and biomedical industries. In addition, the solidifica

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40

Lahiouel, Rachid. "Evolution du réseau Kondo en fonction de l'hybridation : les systèmes CeIn(Ag,Cu)2 et Ce(Ge,Si)2." Grenoble 1, 1987. http://www.theses.fr/1987GRE10054.

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Observation du passage d'un regime kondo mixte a un regime kondo pur ou a un regime de valence intermediaire sous l'effet de la pression chimique. Etude du diagramme de phases magnetiques. Determination du coefficient de couplage entre electrons 4 f et la bande de conduction jn(e::(f)). Coefficient de la chaleur specifique, temperature de kondo et coefficient de grueneisen electronique de ceincu::(2)

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41

Gachon, Jean-Claude. "Enthalpies de formation des composés binaires de métaux de transition par réaction directe dans un calorimètre 1800 K. : Discussion de méthodes de prévisions thermodynamiques et structurales." Nancy 1, 1986. http://www.theses.fr/1986NAN10055.

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Mise au point d'un nouveau calorimètre pouvant fonctionner depuis la température ambiante jusqu'à 1800K. Application à des mesures de capacité calorifique et d'enthalpie de formation ainsi qu'à l'analyse thermique différentielle. Caractérisation de l'enthalpie de 27 composés binaires de métaux de transition. Étude à partir des résultats de plusieurs modèles de prévision des enthalpies de formation d'alliages. Discussion des résultats. Proposition d'un modèle prévisionnel de stoechiométries et des structures des phases binaires susceptibles d'apparaître dans un système métallique

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"Liquid phase separation and glass formation of Pd-Si alloy." 1997. http://library.cuhk.edu.hk/record=b5889335.

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Hong Sin Yi, Grace.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1997.<br>Includes bibliographical references (leaves 50-51).<br>Acknowledgments<br>Abstract<br>Chapter Chapter 1 --- Introduction<br>Chapter 1.1 --- Metallic Glass and its application --- p.1<br>Chapter 1.2 --- Glass Forming Ability (GFA) --- p.2<br>Chapter 1.3 --- Equilibrium Phase --- p.3<br>Chapter 1.4 --- Nucleation and Growth --- p.6<br>Chapter 1.5 --- Spinodal Decomposition --- p.8<br>Chapter 1.6 --- Morphology Comparison between Nucleation and Growth and Spinodal --- p.13<br>Figures --- p.14<br>References -

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Shadowspeaker, Ludi A. "On the fragility and equilibrium phases of metallic glass forming alloys." Thesis, 2003. http://hdl.handle.net/1957/30817.

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"Thermal properties of nanostructured Pd₈₂Si₁₈ alloy." 2000. http://library.cuhk.edu.hk/record=b5895856.

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Chan Chun Wai = 納米鈀硅合金的熱性質 / 陳進偉.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2000.<br>Includes bibliographical references (leaves 18-20).<br>Text in English; abstracts in English and Chinese.<br>Chan Chun Wai = Na mi ba gui he jin de re xing zhi / Chen Jinwei.<br>Acknowledgements --- p.III<br>Abstract --- p.IV<br>摘要 --- p.V<br>Chapter Chapter One ´ؤ --- Introduction<br>Chapter 1.1 --- Novel materials in the 21st century --- p.1<br>Chapter 1.2 --- What are Nanocrystalline Materials? --- p.1<br>Chapter 1.3 --- The superior properties of Nanocrystalline Materials --- p.2<br>Chapt

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Chang, Pei-Chi, and 張珮琦. "Electrical and thermal properties of TiNi-based shape memory alloys." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/nqsewt.

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博士<br>國立東華大學<br>物理學系<br>105<br>Electrical resistivity, the Seebeck coefficient, thermal conductivity, and specific heat measurements on Ti50Ni50-xFex (x = 2.0 – 10.0 at. %) shape memory alloys (SMAs) were measured to investigate the influence of point defects (Fe) on their characteristics of martensitic transformation. It is found that the Ti50Ni48Fe2 and Ti50Ni47Fe3 SMAs have a two-stage martensitic transformation (B2→R and R→B19), while the Ti50Ni46Fe4, Ti50Ni44.5Fe5.5, and Ti50Ni44Fe6 SMAs display a one-step martensitic transition (B2→R). However, the Ti50Ni42Fe8 and Ti50Ni40Fe10 SMAs exhi

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Wang, Kuan-Wen, and 王冠文. "Thermal Properties and Surface Modification of Pd-Based Nanocrystalline Alloys." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/15611736820247753457.

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博士<br>國立清華大學<br>材料科學工程學系<br>94<br>Nanostructured materials are very attractive because of their large surface area and surface energy. By controlling the surface area or surface energy, the properties of nanomaterials can be manipulated. A common surface modification practice is to cover the nanoparticle surface with a layer of surfactant. The surfactant may prevent the particles from agglomeration and grain growth during sintering, and may also increase dispersity as the surface energy changes. Thus, the surface energy and properties of nanomaterials can be changed by this technology.

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Shaw, Tyler A. "Rheological measurements of bulk metallic glass forming alloys above the liquidus temperature." Thesis, 2004. http://hdl.handle.net/1957/28881.

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A high temperature high vacuum rheometer has been designed, fabricated, and tested for the study of the steady shear viscosity for multicomponent bulk metallic glass forming alloys. This rheometer has an operating range up to 1525 K, rotational frequencies of 9.4*10⁻³-3.7*10¹ radians/s, and a calibrated viscosity range of 9.6*10⁻³ and 1.2*10² Pa*s while maintaining absolute pressures pressure < 1*10⁻⁶ mbar. Zr[subscript 41.2]Ti[subscript 13.8]Cu[subscript 10.0]Ni[subscript 12.5]Be[subscript 22.5] (Vitreloy 1) is reported. The unexpected findings of non-Newtonian behavior above the liquidus tem

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Chen, Chun-Hung, and 陳俊宏. "Thermal and Transport Properties of Ni-rich TiNi Shape Memory Alloys." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/e8k3ut.

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碩士<br>國立東華大學<br>物理學系<br>102<br>In this thesis, we report on the measurements of electrical of electrical resistivity ( ρ ), Seebeck coefficient ( S ), thermal conductivity ( κ ) and specific heat ( CP ) of a series of shape memory alloys Ti50-xNi50+x ( x = 0, 0.4, 0.7, 1.0, 1.3, 1.6 ) without annealing in the temperature range 10 - 400 K. Anomalous behaviors are observed in both cooling and heating cycles in all measured physical properties for the low Ni-rich TiNi alloys (x <= 1.0), corresponding to the transformation between the B19 martensite and B2 austenite phases. The transformation is

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Tang, Ren-Chong, and 唐仁崇. "Anomalous transport and thermal properties of Ti50Ni50-xCux shape memory alloys." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/jyr4j9.

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碩士<br>國立東華大學<br>物理學系<br>100<br>In this study, we report on the measurements of electrical resistivity (ρ), Seebeck coefficient (S), and thermal conductivity (κ) of a series of shape memory alloys Ti50Ni50-xCux with x = 0, 5, 7.5, 10, 15, 20, 25, 30 in the temperature range 10 - 400 K. A significant thermal hysteresis between warming and cooling was observed in all these alloys which is a manifestation of the first-order nature of martensitic transitions. It was also found that the martensitic transition temperature increases while the observed thermal hysteresis diminishes with increasing Cu c

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Mutava, Tapiwa David. "Phase reactions of the alloy TIMETAL 125 and its thermomechanical treatments." Thesis, 2017. http://hdl.handle.net/10539/23515.

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A thesis submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy (Metallurgical Engineering) 2017<br>The alloy Ti-2.7Al-5.7Fe-6Mo-6V (wt%), commercially known as Timetal 125, is used as a high strength fastener in aerostructure assemblies. Very little information is available on its properties and processing, and this study investigated its consolidation from low cost elemental powders, to achieve the minimum mechanical properties for use as a high strength fastener. Reactions during alloy

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