Log in

Relevant bibliographies by topics / Implantation of alloys / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Implantation of alloys.

Dissertations / Theses on the topic 'Implantation of alloys'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 34 dissertations / theses for your research on the topic 'Implantation of alloys.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Green, S. M. "The surface performance of Ni-Ti shape memory alloys." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294709.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Han, Jeon Geon. "The effect of surface modification by ion implantation on the fatigue behavior in metastable B-phase Ti-24V alloy." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/32795.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Zaitseva, Nataliia. "Periostal reaction after implantation of B (Zr-Ti) and Ti-alloys." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/41246.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Crosby, Robert T. "Evolution of self-interstitials induced by ion-implantation in SiGe alloys." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0009422.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Bratushka, S. N. "Influence of complex treatment on the properties of titanium alloys VT-6." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/20824.

Full text

Abstract:

The paper presents new results on investigation of structure and physicalmechanical properties of near surface layers of titanium alloys VT-6 after (W+, Mo+) ion implantation and subsequent thermal annealing under 550oC during 2 hours. Using back scattering (RBS) of helium ions and protons, scanning electron microscopy (SEM) with microanalysis (EDS), (WDS), proton (ion) induced X-ray emission (PIXE), X-ray phase analysis (ERD) with a sliding beam geometry (0.5oC), Mössbauer spectroscopy (MS), measurements of nanohardness and elastic modulus, friction wear (cylinder-plate), measurements of co

APA, Harvard, Vancouver, ISO, and other styles

6

Barnackas, Irmantas. "Investigation of hydrogenation kinetics of magnesium and magnesium alloys in the ionized reactive atmosphere." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080919_140633-22213.

Full text

Abstract:

In the present work Mg and MgAl thin films were fabricated using physical vapour deposition (PVD) technologies as non-traditional and new nanotechnology methods for designing high performance hydrogen storage materials. The physical vapour deposition technologies allow the formation of metastable metal, alloy and chemical compounds with strictly controlled composition, microstructure and stoichiometry at low temperatures. The synthesis of MgH2, MgAl and Mg(AlH4)2 films has been conducted in two steps: (i) fabrication of thin films employing magnetron sputtering in Ar gas, and (ii) hydrogenati

APA, Harvard, Vancouver, ISO, and other styles

7

Zamani, Atieh. "Metallic Amorphous Thin Films and Heterostructures with Tunable Magnetic Properties." Doctoral thesis, Uppsala universitet, Materialfysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-239950.

Full text

Abstract:

The primary focus of this thesis is to study the effect of doping on magnetic properties in amorphous Fe100−xZrx alloys. Samples with compositions of x = 7,11.6 and 12 at.% were implanted with different concentrations of H. Moreover, the samples with a composition of x = 7 at.% were also implanted with He, B, C and N. Magnetic measurements were performed, using SQUID magnetometry and MOKE, in order to compare the as-grown and the implanted films. The Curie temperature (Tc) increases and the coercivity (Hc) decreases, with increasing dopant volume. We also found that Hc increases with temperatu

APA, Harvard, Vancouver, ISO, and other styles

8

Guastaldi, Fernando Pozzi Semeghini [UNESP]. "Caracterização química e morfológica de implantes Ti-Mo com superfícies usinadas e modificadas por feixe de laser: análises biomecânica, histológica e histométrica em coelhos." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/88949.

Full text

Abstract:

Made available in DSpace on 2014-06-11T19:23:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-03-05Bitstream added on 2014-06-13T18:51:05Z : No. of bitstreams: 1 guastaldi_fps_me_araca.pdf: 881668 bytes, checksum: 3d7160f0119840f8c8f8a43bc927f885 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Proposição: Caracterizar, química e morfologicamente, superfícies de implantes constituídos de ligas de titânio/molibidênio (Ti-15Mo), modificadas por feixe de laser, comparando-as com implantes da mesma liga com superfície usinada, empregando-se análises biomecânica,

APA, Harvard, Vancouver, ISO, and other styles

9

Gao, Kun. "Highly Mismatched GaAs(1-x)N(x) and Ge(1-x)Sn(x) Alloys Prepared by Ion Implantation and Ultrashort Annealing." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-158921.

Full text

Abstract:

Doping allows us to modify semiconductor materials for desired properties such as conductivity, bandgap, and / or lattice parameter. A small portion replacement of the highly mismatched isoelectronic dopants with the host atoms of a semiconductor can result in drastic variation of its structural, optical, and / or electronic properties. Here, the term "mismatch" describes the properties of atom size, ionicity, and / or electronegativity. This thesis presents the fabrication of two kinds of highly mismatched semiconductor alloys, i.e., Ge(1-x)Sn(x) and GaAs(1-x)N(x). The structural and optical

APA, Harvard, Vancouver, ISO, and other styles

10

Guastaldi, Fernando Pozzi Semeghini. "Caracterização química e morfológica de implantes Ti-Mo com superfícies usinadas e modificadas por feixe de laser : análises biomecânica, histológica e histométrica em coelhos /." Araçatuba : [s.n.], 2010. http://hdl.handle.net/11449/88949.

Full text

Abstract:

Orientador: Eduardo Hochuli Vieira<br>Banca: Osvaldo Magro Filho<br>Banca: Adalberto Luiz Rosa<br>Resumo: Proposição: Caracterizar, química e morfologicamente, superfícies de implantes constituídos de ligas de titânio/molibidênio (Ti-15Mo), modificadas por feixe de laser, comparando-as com implantes da mesma liga com superfície usinada, empregando-se análises biomecânica, histológica e histométrica. Material e método: Dezesseis coelhos receberam 1 implante por tíbia das seguintes superfícies: superfície usinada (SU) e superfície modificada por laser (SML). Após 8 semanas foi realizado o teste

APA, Harvard, Vancouver, ISO, and other styles

11

Маліков, Леонід Васильович, Леонид Васильевич Маликов та Leonid Vasylovych Malikov. "Особенности структурного состояния и физико-механические свойства сплавов на основе ti, al и ni после двойной ионной имплантации". Thesis, Вид-во СумДУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/24339.

Full text

Abstract:

Дисертація присвячена вивченню закономірностей фазових та струк-турних змін у приповерхневих шарах титанових сплавів ВТ-6, ВТ-22, TiNi після подвійної іонної імплантації. Досліджуються морфологія поверхні, елементний, фазовий склад, розподіл іонів за глибиною, концентраційні профілі та дифузія імплантованих іонів, механічні (нанотвердість) власти-вості титанових сплавів ВТ-6, ВТ-22 та TiNi після подвійної іонної ім-плантації. Проаналізовані фізичні процеси, які відбуваються у приповерх-невих шарах титанових сплавів ВТ-6, ВТ-22 і TiNi, їх вплив на формуван-ня твердих розчинів, зміну структури,

APA, Harvard, Vancouver, ISO, and other styles

12

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

13

Hardie, Christopher David. "Micro-mechanics of irradiated Fe-Cr alloys for fusion reactors." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:a3ac36ba-ca6f-4129-8f37-f1278ef8a559.

Full text

Abstract:

In the absence of a fusion neutron source, research on the structural integrity of materials in the fusion environment relies on current fission data and simulation methods. Through investigation of the Fe-Cr system, this detailed study explores the challenges and limitations in the use of currently available radiation sources for fusion materials research. An investigation of ion-irradiated Fe12%Cr using nanoindentation with a cube corner, Berkovich and spherical tip, and micro-cantilever testing with two different geometries, highlighted that the measurement of irradiation hardening was larg

APA, Harvard, Vancouver, ISO, and other styles

14

Inada, Eduardo. "Estudo in vivo e in vitro da corrosão de ligas de Co-Cr e de Ni-Cr utilizadas em estruturas protéticas de implantes orais." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/23/23140/tde-18102013-184445/.

Full text

Abstract:

Este trabalho avaliou o comportamento eletroquímico de três ligas de níquel-cromo e duas de cobalto-cromo in vitro e in vivo. Nos estudos in vitro foram fabricados eletrodos de trabalho a partir destas ligas. Estes eletrodos ficaram imersos em meio de NaCl 0,15 mol.L-1 a 36,5°C e foram submetidos às técnicas do potencial de circuito aberto, polarização potenciostática anódica e cronoamperometria. Para os estudos in vivo foram selecionados quinze pacientes com implantes já osseointegrados e aguardando a instalação das próteses. Esses pacientes foram distribuídos aleatoriamente em cinco grupos,

APA, Harvard, Vancouver, ISO, and other styles

15

Inada, Eduardo. "Estudos eletroquímicos in vitro e in vivo da liga níquelcromomolibdênio titânio aplicada em supraestruturas de implantes orais." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/23/23137/tde-11112005-113256/.

Full text

Abstract:

Este trabalho avaliou o comportamento eletroquímico da liga de níquel-cromo-molibdênio- titânio em relação à liga ouro-platina-paládio em meio de NaCl 0,15 mol.L -1 a 36,5ºC. Os estudos in vitro também envolveram a caracterização eletroquímica do titânio, uma vez que as referidas ligas são empregadas em supraestruturas de implantes osseointegrados. Os estudos in vivo foram feitos com as ligas formando par com titânio comercialmente puro grau IV. Nos estudos in vitro, foram utilizadas técnicas de medidas de potencial de circuito aberto, curvas de polarização anódica e espectrofotometria de abso

APA, Harvard, Vancouver, ISO, and other styles

16

Gao, Kun [Verfasser], Manfred [Akademischer Betreuer] Helm, and Georgeta [Akademischer Betreuer] Salvan. "Highly Mismatched GaAs(1-x)N(x) and Ge(1-x)Sn(x) Alloys Prepared by Ion Implantation and Ultrashort Annealing / Kun Gao. Gutachter: Manfred Helm ; Georgeta Salvan. Betreuer: Manfred Helm." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://d-nb.info/1069092568/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Popoola, Oludélé Olusègun. "Amorphisation et précipitation superficielles induites par implantation ionique dans les alliages NiTi équiatomiques : application aux propriétés tribologiques." Poitiers, 1988. http://www.theses.fr/1988POIT2292.

Full text

Abstract:

Mise en evidence par microscopie electronique en transmission, spectrometrie sims et photoelectron d'une amorphisation superficielle et de la formation de fins precipites cristallins tin::(x) dans le cas d'une implantation, d'azote. Influence de la temperature et de la dose d'ion sur l'epaisseur de la couche. Correlation entre la microstructure d'implantation et les proprietes tribologiques. Le coefficient de frottement se trouve reduit et la resistance a l'usure se trouve amelioree de facon durable. L'initiation et la propagation des processus de degradation sont ainsi ralenties

APA, Harvard, Vancouver, ISO, and other styles

18

Payne, Robin Spencer. "Inert gas implantation of amorphous CuZr." Thesis, University of Surrey, 1987. http://epubs.surrey.ac.uk/847884/.

Full text

Abstract:

It was proposed that amorphous alloys may be more resistant to radiation damage than crystalline metals. In crystalline metals neutron induced transmutations lead to the formation of inert gas bubbles. These preferentially nucleate near line defects and result in embrittlement. Amorphous alloys do not contain sites where nucleation can occur preferentially. In this work the growth of argon bubbles in amorphous Cu[50]Zr[50] has been induced by implanting thin specimens with 80keV argon ions at room temperature. The bubble size distribution was obtained over the dose range 5x10[16] to 3x10[17] A

APA, Harvard, Vancouver, ISO, and other styles

19

Owusu-Mensah, Martin. "Understanding the first formation stages of (Y,Ti) nano-oxides in Oxide Dispersion Strengthened (ODS) steels." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS310.

Full text

Abstract:

Les aciers appelés ODS (pour Oxide Dispersion Strengthened), renforcés par une dispersion homogène de nano-oxydes, sont des matériaux de structure avancés pour les futurs réacteurs nucléaires de fusion et de fission. En effet ces nano-oxydes, à base d’Y et Ti, servent comme centres de recombinaison de défauts ponctuels et d'obstacles aux mouvements des dislocations, améliorant de ce fait leur résistance aux radiations et aux températures élevées. La fabrication conventionnelle des aciers ODS est réalisée par broyage mécanique suivi de traitements thermo-mécaniques, et ne permet pas facilement

APA, Harvard, Vancouver, ISO, and other styles

20

Türkan, Uğur Öztürk Orhan. "Biocompatibility and Microstructural Characterization of Pvd Coated and Nitrogen Implanted Co-Cr Alloy/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/malzemebilimivemuh/T000437.doc.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Якущенко, Іван Володимирович, Иван Владимирович Якущенко та Ivan Volodymyrovych Yakushchenko. "Структурні характеристики та фізико-механічні властивості багатокомпонентних нітридних покриттів до і після іонної імплантації". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67473.

Full text

Abstract:

Дисертаційна робота присвячена дослідженню впливу імплантації негативних іонів Au- на фазовий склад, структурно-напружений і дефектний стан, механічні й трибологічні властивості п'яти- та шести- елементних нітридних покриттів (TiZrAlYNb)Nx і (TiZrHfVNbTa)Nx і вплив на них технологічних умов осадження (тиску робочого газу, і потенціалу зсуву підкладки). Результати дослідження елементного, фазового і напружено-деформованого стану покриттів свідчать про те, що в покриттях відбувається формування двух основних кристалічних фаз – ГЦК і ОЦК в залежності від тиску робочого газу. Фазовий стан змінюєт

APA, Harvard, Vancouver, ISO, and other styles

22

Zheng, Ce. "Synthèse de nano-amas d'oxyde métallique par implantation ionique dans un alliage Fe10Cr de haute pureté." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS091/document.

Full text

Abstract:

Les aciers ODS (Oxide Dispersed Strengthened Steels), renforcés par des dispersions de nano-oxydes métalliques (à base d'éléments Y, Ti et O), sont des matériaux prometteurs pour les réacteurs nucléaires de génération IV. La compréhension fine des mécanismes mis en jeu lors de la précipitation de ces nano-oxydes permettrait d'améliorer la fabrication et les propriétés mécaniques de ces aciers ODS, avec un fort impact économique en vue de leur industrialisation. Pour étudier expérimentalement ces mécanismes, une approche analytique par implantation ionique est utilisée dans cette étude, permett

APA, Harvard, Vancouver, ISO, and other styles

23

Faussemagne, Arielle. "Evolution des propriétés de surface de l'acier 100Cr6 par implantation et mélange ioniques." Lyon 1, 1996. http://www.theses.fr/1996LYO10167.

Full text

Abstract:

Des etudes de caracterisations physicochimiques, menees sur des echantillons en acier 100cr6 implantes a la fois en bore et en azote, ont mis en evidence la formation de nitrure de bore et des nouvelles phases, fe#1##x(b, n), fe#2##x(b, n) et fe#3##x(b, n), inconnues dans la litterature. En particulier, l'analyse du nitrure de bore (bn) forme a revele qu'une faible densite de courant d'ions (3 a. Cm##2) dans le cas de la sequence bore plus azote favorise l'instauration de liaisons de type sp#2 (bn hexagonal), tandis qu'une forte densite de courant (6 a. Cm##2) dans la sequence azote plus bore

APA, Harvard, Vancouver, ISO, and other styles

24

Girardeau, Thierry. "Etude des signaux exafs des laitons au cours de la transformation martensitique : mise au point d'un appareillage exafs de laboratoire adapte aux films minces." Poitiers, 1987. http://www.theses.fr/1987POIT2276.

Full text

Abstract:

Etude par analyse du coefficient d'absorption, de la transformation martensitique dans les laitons cu-39%atzn et cu-15%atzn-17%atal. Mise au point d'un appareillage de mesure exafs afin d'obtenir des signaux caracteristiques des regions cristallines endommagees par implantation ionique. La methode consiste a faire penetrer les rayons x en incidence rasante puis a botenir une reflexion totale sur son support. Application au melange ionique des multicouches fe-al soumises a une implantation d'ions xenon

APA, Harvard, Vancouver, ISO, and other styles

25

Templier, Claude. "Etude expérimentale de la précipitation dans les alliages à base d'aluminium obtenus par implantation ionique de Cu, Ag et Xe : demixtion et dissolution dans les alliages Al-Ag et Al-Cu, structure, formation et croissance des bulles de xenon." Poitiers, 1987. http://www.theses.fr/1987POIT2017.

Full text

Abstract:

Analyse de la microstructure des alliages al-ag et al-cu fabriques par implantation ionique. Analyse des zones de guinier-preston et des phases intermediaires dans l'alliage al-cu irradie par des ions xenon de 300 kev. Mise en evidence des mecanismes de diffusion acceleree, diffusion balistique et precipitation. Pour les echantillons irradies avec des ions xenon, des bulles de xenon solide se forment. Etude de la demixion , du xenon dans des matrices d'aluminium: structure des bulles apres l'implantation , formation des bulles pendant l'implantation, evolution des bulles lors des traitements t

APA, Harvard, Vancouver, ISO, and other styles

26

Walter, Kevin Carl. "Plasma source ion implantation of aluminum and aluminum alloys." 1993. http://catalog.hathitrust.org/api/volumes/oclc/30841877.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Gortmaker, Paul. "Time resolved reflectivity studies of solid phase epitaxy in ion implanted germanium, silicon and their alloys." Phd thesis, 1997. http://hdl.handle.net/1885/145969.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Tran, Tuan. "Synthesis of Germanium-Tin Alloys by Ion Implantation and Pulsed Laser Melting: Towards a Group IV Direct Band Gap Semiconductor." Phd thesis, 2017. http://hdl.handle.net/1885/131126.

Full text

Abstract:

The germanium-tin (Ge1-xSnx) material system is expected to be a direct bandgap group IV semiconductor at a Sn content of 6.5−11 𝑎𝑡.%. Hence there has been much interest in preparing such alloys since they are compatible with silicon and they raise the possibility of integrating photonics functionality into silicon circuitry. However, the maximum solid solubility of Sn in Ge is around 0.5 𝑎𝑡.% and non-equilibrium deposition techniques such as molecular beam epitaxy or chemical vapour deposition have been used to achieve the desired high Sn concentrations. In this PhD work, the combination of

APA, Harvard, Vancouver, ISO, and other styles

29

Gao, Kun. "Highly Mismatched GaAs(1-x)N(x) and Ge(1-x)Sn(x) Alloys Prepared by Ion Implantation and Ultrashort Annealing." Doctoral thesis, 2014. https://tud.qucosa.de/id/qucosa%3A28488.

Full text

Abstract:

Doping allows us to modify semiconductor materials for desired properties such as conductivity, bandgap, and / or lattice parameter. A small portion replacement of the highly mismatched isoelectronic dopants with the host atoms of a semiconductor can result in drastic variation of its structural, optical, and / or electronic properties. Here, the term "mismatch" describes the properties of atom size, ionicity, and / or electronegativity. This thesis presents the fabrication of two kinds of highly mismatched semiconductor alloys, i.e., Ge(1-x)Sn(x) and GaAs(1-x)N(x). The structural and optical

APA, Harvard, Vancouver, ISO, and other styles

30

Wang, Chiou-mei, and 王秋眉. "Effects of Ion Implantation on Nickel Alloy Silicides." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/41111963642669649248.

Full text

Abstract:

碩士<br>國立中央大學<br>材料科學與工程研究所<br>99<br>The　research　topics　that　effect　of　ion　implantation　on　nickel　alloy　silicide.　Reportedly,　the　thermal　stability　of　Ni　silicides　was　improved　by　the　introduction　of　Pt　atom.　For　comparison,　the Ni-Pt /Si　samples　were　also　prepared　at　the　same　conditions.　Frist,　one　of　this　study　investigates　the formation　of　Ni-Ti　silicide　on　preamorphization　implanted　Si ( PAI-Si).　The　system　of Ni-Ti　silicide　formed　on　the　Si　substrate,　the　NiSi2　was　the　only　silicide　phase.　This　study　proposes　a　mechanism　that　Ti-just　interface,　effectively　hindering　the　Ni　atom　diffuse　in

APA, Harvard, Vancouver, ISO, and other styles

31

Twan, Sheng-Chen, and 段生振. "Formation Behaviors and Microstructures of Nickel Alloy Silicide with Ion Implantation." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/8q584j.

Full text

Abstract:

博士<br>國立中央大學<br>材料科學與工程研究所<br>106<br>With the scaling of IC devices on Moore’s Law extension, the contact sheet resistance reduction is crucial on IC device fabrication. Ion implantation with additives elements for material modification and structural crystallization is one of the most critical methods for contact resistance reduction. It is also being widely used at semiconductor manufacturing in recent decades. This dissertation systematically investigated the formation behaviors and microstructures of Nickel silicide with ion implantation or deposited the additive elements for contact sheet

APA, Harvard, Vancouver, ISO, and other styles

32

LIAO, TIAN-YOU, and 廖天佑. "Applying Plasma Immersion Ion Implantation technique to improve the surface properties of AA7005 Aluminum Alloy." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/xefutd.

Full text

Abstract:

碩士<br>國立臺灣科技大學<br>機械工程系<br>99<br>The objective is to improve the surface property of the Al-Zn-Mg alloys by applying Nitrogen Plasma Immersion Ion Implantation (N-PIII) technique to modify the surface properties of the aluminum alloy. AA7005 aluminum alloy is used as the substrate material in this study. Effects of bias voltage of N-PIII process on the thickness, growth rate and microstructure of the modified layer was studied. The influences of pre-treatment and initial condition of substrate as well as the post-process heat-treatment on the microstructure and the surface characteristics of

APA, Harvard, Vancouver, ISO, and other styles

33

Ahn, Sangjoon. "Comprehensive Investigation of the Uranium-Zirconium Alloy System: Thermophysical Properties, Phase Characterization and Ion Implantation Effects." Thesis, 2013. http://hdl.handle.net/1969.1/151201.

Full text

Abstract:

Uranium-zirconium (U-Zr) alloys comprise a class of metallic nuclear fuel that is regularly considered for application in fast nuclear energy systems. The U-10wt%Zr alloy has been demonstrated to very high burnup without cladding breach in the Experimental Breeder Reactor-II (EBR-II). This was accomplished by successfully accommodating gaseous fission products with low smear density fuel and an enlarged cladding plenum. Fission gas swelling behavior of the fuel has been experimentally revealed to be significantly affected by the temperature gradient within a fuel pin and the multiple phase mor

APA, Harvard, Vancouver, ISO, and other styles

34

Yu, Wei-Xiang, and 游惟翔. "Plasma ion implantation on Ti-based alloy and carbon steel: study of modification on surface morphologies and microstructures." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/57044428393177458134.

Full text

Abstract:

碩士<br>國立成功大學<br>材料科學及工程學系碩博士班<br>92<br>Ion implantation methods are physical techniques capable to create a diffused layer into a metal surface and are dissimilar to coating techniques, which usually alter the size or the dimension of the substrate. Among them, plasma ion implantation technique utilizes low-pressure gaseous plasma as the source of ionized elements. The substrate is exerted a constant and negative impulse bias; plasma ions thereafter bombard into the target substrate, which may result in a layer of several hundreds nm depth. Plasma ion implantation method is competent to insert

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!