Log in

Relevant bibliographies by topics / Alloy layer / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Alloy layer.

Dissertations / Theses on the topic 'Alloy layer'

Author: Grafiati

Published: 30 May 2022

Last updated: 18 July 2025

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

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Alloy layer.'

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

Taylor, Matthew Logan. "Hydrogen permeation of Alloy-22 considering the passive layer." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1446439.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

SOUTO, MARCELO BELMIRO GOMES DE. "CHARACTERIZATION OF THE OXIDIZED LAYER OF ALLOY ASTM F15 OBTAINED UNDER DIFFERENT SURFACE CONDITIONS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=25671@1.

Full text

Abstract:

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO<br>A liga ASTM F15 é usada para o encapsulamento de componentes ou dispositivos eletrônicos em virtude de seu baixo coeficiente de expansão térmica que é similar à de vidros duros. Na construção de juntas vitro metálicas com características de hermeticidade a formação de uma camada de óxido na superfície metálica é necessária para que ocorra o molhamento adequado desta superfície pelo sealing glass. Neste trabalho foram ut

APA, Harvard, Vancouver, ISO, and other styles

3

Zhao, Zhijun. "Role of surface active layers on localized breakdown of aluminum alloy 7075." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1160670830.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Hazlehurst, Kevin Brian. "The adoption of laser melting technology for the manufacture of functionally graded cobalt chrome alloy femoral stems." Thesis, University of Wolverhampton, 2014. http://hdl.handle.net/2436/332114.

Full text

Abstract:

Total Hip Arthroplasty (THA) is an orthopaedic procedure that is performed to reduce pain and restore the functionality of hip joints that are affected by degenerative diseases. The outcomes of THA are generally good. However, the stress shielding of the periprosthetic femur is a factor that can contribute towards the premature loosening of the femoral stem. In order to improve the stress shielding characteristics of metallic femoral stems, stiffness configurations that offer more flexibility should be considered. This research has investigated the potential of more flexible and lightweight co

APA, Harvard, Vancouver, ISO, and other styles

5

Domfang, Ngnekou Julius-Noël. "Étude expérimentale de la tenue en fatigue de l’alliage AlSi10Mg élaboré par fusion laser de lit de poudre Influence of as-built surface and heat treatment on the fatigue resistance of Additively Layer Manufacturing (ALM) AlSi10Mg alloy Fatigue resistance of selectively laser melted aluminum alloy under T6 heat treatment Fatigue properties of AlSi10Mg produced by Additive Layer Manufacturing." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2019. http://www.theses.fr/2019ESMA0015.

Full text

Abstract:

Ce travail montre l'impact des défauts et de la microstructure sur la limite de fatigue de l’AlSi10Mg de fabrication additive (FA). Les échantillons d’étude sont fabriqués suivant trois orientations (0 °, 45 ° et 90 °) ; les surfaces d’étude sont usinées ou brutes de fabrication. Les éprouvettes sont étudiées avec ou sans traitement thermique T6. Avant toute chose, le matériau est d’abord caractérisé en lien avec les paramètres du procédé à l’aide de plusieurs moyens (microscopie, microtomographie). Du point de la fatigue, les courbes S-N sont établies avant et après T6, principalement à R = -

APA, Harvard, Vancouver, ISO, and other styles

6

Li, Kai. "Origins and evolution of near-surface microstructures and their influence on the optical property of AA3104 aluminium alloy." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/origins-and-evolution-of-nearsurface-microstructures-and-their-influence-on-the-optical-property-of-aa3104-aluminium-alloy(69670a59-c416-40a1-920f-a246959791a4).html.

Full text

Abstract:

The microstructures of the near-surface layers on AA3104 aluminium alloys and their evolution through rolling and deep drawing processes have been investigated. The effect of the near-surface layers on the optical property of AA3104 aluminium alloy has also been assessed. It was revealed that two types of near-surface deformed layers, both with different microstructures different from the underlying bulk alloy, were generated on the surface of AA3104 aluminium alloy during rolling. Both of them are characterized by ultrafine, equiaxed grains, with diameters <100 nm for type A near-surface defo

APA, Harvard, Vancouver, ISO, and other styles

7

Яременко, Денис Олегович. "Формування функціональних покриттів на сталі 40Х електроіскровим легуванням хромом та ніобієм". Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/43127.

Full text

Abstract:

Об’єкт дослідження – поверхневі шари сталі 40Х, отримані електроіскровим легуванням анодами хромом та ніобієм на повітрі. Мета роботи – встановити вплив послідовності ЕІЛ хромом і ніобієм на мікроструктуру, фазовий склад і мікротвердість поверхневих шарів сталі 40Х. Методи дослідження – гравіметричний, мікроструктурний, мікродюрометричний та рентгенофазовий. Показана можливість формування зміцнених покриттів (мікротвердістю 9,5 ГПа – 14,5 ГПа і товщиною 20 мкм – 35 мкм) електроіскровим легуванням Cr та Nb сталі 40Х при різній послідовності нанесення матеріалів анодів. Встановлено вплив нане

APA, Harvard, Vancouver, ISO, and other styles

8

Kumar, Pawan. "Studies of wire-matrix interaction in some tungsten wire reinforced stainless steels." Thesis, University of Canterbury. Mechanical Engineering, 2013. http://hdl.handle.net/10092/8980.

Full text

Abstract:

There is potential for improving creep properties of stainless steels by reinforcing them with tungsten (W) wires. Past studies have shown that a detrimental factor that impairs the mechanical properties of tungsten wire reinforced superalloy composites is the formation of brittle intermetallic phases due to the interaction between W wire and constituents of the alloy matrices. Formation and growth of the intermetallic phases strongly depends on the matrix chemistry and for the retention of creep strength, matrix compositions that do not form intermetallic phases with tungsten are desirable fo

APA, Harvard, Vancouver, ISO, and other styles

9

Jagtap, Rohit. "The Effects of Ultrasonic Nano-crystal Surface Modification on Residual Stress, Microstructure and Fatigue Behavior of Low-Modulus Ti-35Nb-7Zr-5Ta-0.3O Alloy." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479823317088871.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Seong, Jinwook. "Inhibition of Corrosion and Stress Corrosion Cracking of Sensitized AA5083." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429701294.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Lindsay, John Christopher. "Stress corrosion cracking and internal oxidation of alloy 600 in high temperature hydrogenated steam and water." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/stress-corrosion-cracking-and-internal-oxidation-of-alloy-600-in-high-temperature-hydrogenated-steam-and-water(1d6b037c-baf1-4397-a6c9-43835e7bb39a).html.

Full text

Abstract:

In this study, the possibility of using low pressure hydrogenated steam to simulate primary water reactor conditions is examined. The oxides formed on Alloy 600 (WF675) between 350 Celsius and 500 Celsius in low pressure hydrogenated steam (with a ratio of oxygen at the Ni/NiO to oxygen in the system of 20) have been characterised using analytical electron microscopy (AEM) and compared to oxide that formed in a high pressure water in a autoclave at 350 Celsius with 30 cc/kg of hydrogen. Preferential oxidation of grain boundaries and bulk internal oxidation were observed on samples prepared by

APA, Harvard, Vancouver, ISO, and other styles

12

Riegler, Andreas [Verfasser], and Laurens Wigbolt [Akademischer Betreuer] Molenkamp. "Ferromagnetic resonance study of the Half-Heusler alloy NiMnSb : The benefit of using NiMnSb as a ferromagnetic layer in pseudo-spin-valve based spin-torque oscillators / Andreas Riegler. Betreuer: Laurens Wigbolt Molenkamp." Würzburg : Universitätsbibliothek der Universität Würzburg, 2011. http://d-nb.info/101816328X/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Ayturk, Mahmut Engin. "Synthesis, annealing strategies and in-situ characterization of thermally stable composite thin Pd/Ag alloy membranes for hydrogen separation." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-042307-012951/.

Full text

Abstract:

Thesis (Ph.D.)--Worcester Polytechnic Institute.<br>Keywords: composite Pd and Pd/Ag membranes, alloying, Pd/Ag barrier, intermetallic diffusion, bi-metal multi-layer BMML deposition, electroless plating kinetics, high temperature x-ray diffraction, aluminum hydroxide surface grading, porous sintered metal supports, hydrogen separation. Includes bibliographical references (leaves 279-296 ).

APA, Harvard, Vancouver, ISO, and other styles

14

Sababi, Majid. "Nanocomposite films for corrosion protection." Doctoral thesis, KTH, Yt- och korrosionsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-132240.

Full text

Abstract:

This thesis describes technical and scientific aspects of new types of composite films/coatings for corrosion protection of carbon steel, composite films with nanometer thickness consisting of mussel adhesive protein (Mefp‐1) and ceria nanoparticles, and polymeric composite coatings with micrometre thickness consisting of conducting polymer and ceria nanoparticles in a UV‐curing polyester acrylate (PEA) resin. The influence of microstructure on corrosion behaviour was studied for a Fe‐Cr‐V‐N alloy containing micro‐sized nitrides with different chemical composition spread in martensitic alloy m

APA, Harvard, Vancouver, ISO, and other styles

15

Zhang, Yunbo. "Effect of microstructure on oxidative wear of a dual-phase low-alloy steel under different gaseous atmospheres, sliding speeds, and oxidation temperatures." Electronic Thesis or Diss., Compiègne, 2022. http://www.theses.fr/2022COMP2699.

Full text

Abstract:

Le comportement tribologique des aciers à double phase a été étudié aux effets de différentes fractions volumiques de martensite (MVF), d'environnements gazeux et de vitesses de glissement, à l'aide d'un tribomètre à bille sur disque, dans des conditions de charge constante et de glissement par friction sèche. Par ailleurs, le comportement tribologique des couches d'oxyde formées à différentes températures et MVF a été étudié par nanoindentation et par des expériences de grattage. Les expériences de glissement à sec ont démontré qu'une MVF plus faible, des vitesses de glissement plus élevées e

APA, Harvard, Vancouver, ISO, and other styles

16

Sexton, Cornelius Leo. "Rapid Alloy Scanning by laser cladding." Thesis, University of Liverpool, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320605.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Cao, Pengcheng. "Characterization of Laser Deposited Alloy 718." Thesis, KTH, Materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-182603.

Full text

Abstract:

Additive Manufacturing (AM) is a method of producing three-dimensional objects using additive processes. It allows great flexibility in the processes and reduces the design-to-production time. Laser Metal Deposition (LMD) is one of AM methods under development and is based on the deposition technology. LMD has advantages in grain growth control, material functional grading, lower material storage requirement and more spatial freedom. Considering the outstanding features, it is important to study the characteristics of LMD products, which in this study is Alloy 718 for aerospace applications. S

APA, Harvard, Vancouver, ISO, and other styles

18

Thomas, Jonova. "Microstructural Phase Evolution In Laser Deposited Compositionally Graded Titanium Chromium Alloys." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849610/.

Full text

Abstract:

A compositionally graded Ti-xCr (10≤x≤30 wt%) alloy has been fabricated using Laser Engineered Net Shaping (LENSTM) to study the microstructural phase evolution along a compositional gradient in both as-deposited and heat treated conditions (1000°C followed by furnace cooling or air cooling). The alloys were characterized by SEM BSE imaging, XRD, EBSD, TEM and micro-hardness measurements to determine processing-structure-property relations. For the as-deposited alloy, α-Ti, β-Ti, and TiCr2 (C15 Laves) phases exist in varying phase fractions, which were influential in determining hardness value

APA, Harvard, Vancouver, ISO, and other styles

19

HUMBERT, PIERRE. "Etude de divers oxydes et interpretation des transitions auger de l'oxygene : caracterisation de couches oxydees de surface." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13205.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Liang, Jing. "Direct laser fabrication of titanium alloy powders." Thesis, University of Birmingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422998.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Ejaz, Muhammad. "Metal dusting of laser-treated alloy 800H." Thesis, University of Manchester, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500503.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Mastrocinque, Ernesto. "Laser welding of Ti6Al4V alloy by disk laser: analysis and optimization." Doctoral thesis, Universita degli studi di Salerno, 2012. http://hdl.handle.net/10556/352.

Full text

Abstract:

2010 - 2011<br>Titanium alloys have been successfully applied in many industrial fields because of their better performance and lighter weight than other commonly used structural materials. The conventional welding methods used for titanium alloys are tungsten inert gas (TIG) and plasma arc welding. In recent decades, autogenous processes with highly concentrated energy sources have become popular; these joining processes are laser and electron-beam welding. The power source can be concentrated in very small areas so as to achieve energy densities up to 10,000 times higher than those of

APA, Harvard, Vancouver, ISO, and other styles

23

Fathi, Shida. "Kontroll av zinkskikt på monterat räckesmaterial." Thesis, KTH, Byggteknik och design, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147182.

Full text

Abstract:

Kontroll av zinkskikt på monterat räckesmaterial som görs ute i fält saknar en fastställd metod. Zinktjockleken har ett minimum tjocklekskrav enligt den svenska standarden ISO 1461:2009, som bestäms av dimensionen på ståldetaljens tjocklek. Trafikverket begär att med hjälp av detta examensarbete kunna begränsa antal mätningar på plats, då kan det ta allt för mycket tid och arbetsresurser i fall det skulle behövas kontroll av väg-och bro räckesanläggningar från beställaren. Sannolikhetsläran och stickprov i statistik hjälper oss att begränsa antalet mätningarna på skyddsanordningarna som görs u

APA, Harvard, Vancouver, ISO, and other styles

24

Lee, Caroline Sunyong. "Surface layer formation on Pb/Sn alloys." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11603.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Merritt, Travis Robert. "Optoperforation of Intact Plant Cells, Spectral Characterization of Alloy Disorder in InAsP Alloy Disorder in InAsP Alloys, and Bimetallic Concentric Surfaces for Metal-Enhanced Fluorescence in Upconverting Nanocrystals." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/25148.

Full text

Abstract:

The techniques of optoperforation, spectral characterization of alloy disorder, and metal-enhanced fluorescence were applied to previously unconsidered or disregarded systems in order to demonstrate that such applications are both feasible and consequential. These applications were the subject of three disparate works and, as such, are independently discussed. Despite being ostensibly restricted to mammalian cells, optoperforation was demonstrated in intact plant cells by means of successful femtosecond-laser-mediated infiltration of a membrane impermeable dextran-conjugated dye into cells of

APA, Harvard, Vancouver, ISO, and other styles

26

Zhang, Tao. "Laser surface hardening of AISI 1518 alloy steel." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/723.

Full text

Abstract:

The laser surface hardening process will enhance the hardness profile of automotive components and ensure better process control and predictability of quality as compared to the conventional hardening processes. A 2KW Nd-YAG laser system was used to harden the surface of alloy steel with various process parameters (laser power, focal spot diameter and beam velocity). The results (microhardness, microstructure change and residual stress distribution) were measured and analyzed with Vickers microhardness tester, optical/electron microscope and hole-drilling residual stress equipment. Statistical

APA, Harvard, Vancouver, ISO, and other styles

27

Soib, Bin Selamat Mohmad. "Laser surface processing of Ti-6Al-4V alloy." Thesis, University of Strathclyde, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366777.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Olakanmi, Eyitayo Olatunde. "Direct selective laser sintering of aluminium alloy powders." Thesis, University of Leeds, 2008. http://etheses.whiterose.ac.uk/1476/.

Full text

Abstract:

The SLS/SLM of aluminium powder had been investigated by studying the effect of powder properties and laser processing parameters on the microstructures and properties of both single layer and multiple layer builds. On the basis of experimental evidence, the SLS/SLM of aluminium powders could be categorised into full melting (SLM) which was found to have occurred in both pure and pre-alloyed aluminium powders, and binary liquid phase sintering (SLS) which occurred in blended bimodal or trimodal powders. That successful disruption of the oxide film is possible is a significant result, as is the

APA, Harvard, Vancouver, ISO, and other styles

29

Forsman, Tomas. "Laser welding of aluminium alloys /." Luleå, 2000. http://epubl.luth.se/1402-1544/2000/39/index.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Yoon, Jong Won. "Laser welding of aluminium alloys." Thesis, University of Cambridge, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343303.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Laurent, Michel P. "A continuum surface layer effect in polycrystalline aggregates." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06082009-170819/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

De, Pauw Virginie. "Mécanismes de nitruration et d'oxydation du composé intermétallique Sm2 (Fe, Co)1#7 pour aimants permanents." Rouen, 1996. http://www.theses.fr/1996ROUES053.

Full text

Abstract:

L'étude des mécanismes de nitruration du composé intermétallique Sm2 (Fe, Co)1#7 est effectuée sur des échantillons massifs à l'aide de la diffraction des rayons X et de la microscopie électronique à balayage. Nous avons utilisé deux modes de nitruration (lit fluidisé et flux gazeux) afin de comparer les processus mis en jeu lors du traitement. Des comportements différents interviennent au niveau de la distribution de l'azote dans les échantillons, des cinétiques de nitruration globale et de la couche de surface. Il apparaît que la diffusion de l'azote est principalement volumique dans le cas

APA, Harvard, Vancouver, ISO, and other styles

33

Henke, M., and G. Gerlach. "A multi-layered variable stiffness device based on smart form closure actuators." Sage, 2016. https://tud.qucosa.de/id/qucosa%3A35622.

Full text

Abstract:

This contribution describes the properties and limitations of multi-layered mechanical devices with variable flexural stiffness. Such structures are supposed to be components of new smart, self-sensing and self-controlling composite materials for lightweight constructions. To enable a proper stiffness control, reliable actuators with high actuation capabilities based on smart materials are used. Those actuators are either driven by electroactive polymers (EAPs) or shape memory alloy (SMA) wires. They control the area moment of inertia of the multi-layered bending structures. To change the area

APA, Harvard, Vancouver, ISO, and other styles

34

Giroux, François. "Développement d'une méthode de test d'electromigration au niveau plaquette : Application a des filières ULSI." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0149.

Full text

Abstract:

L'electromigration est devenue un facteur majeur de limitation de la fiabilite des interconnexions. Dans un contexte industriel, le developpement de methodes de test accelere au niveau plaquette est aujourd'hui une necessite. Nous commencons cette these en evoquant les bases physiques de l'electromigration et les materiaux metalliques utilises pour realiser les interconnexions en microelectronique. Le chapitre suivant presente les differentes methodes et procedures de test de l'electromigration: test de duree de vie en etuve, tests tres acceleres sur plaquette, tests resistometriques, mesure d

APA, Harvard, Vancouver, ISO, and other styles

35

Kuo, Je Ming, and 郭哲銘. "Investigating the Capping-layer effect on the PbAu alloy layer." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/69367197347650542123.

Full text

Abstract:

碩士<br>國立清華大學<br>先進光源科技學位學程<br>103<br>The previous research shows that that a binary alloy composed of heavy atoms, Pb and Au, has large Rashba effect, yielding two cones at Γ ̅ and two giant Rashba splitting at M ̅. Experiments and first-principles calculations of the electronic structure indicated that such a Rashba effect may be produced only via a special buckling configuration induced by squeezing from the top Au capping layers and bottom Pb films. In this research, we demonstrated that with Bi as the capping layer on PbAu alloy, the Rashba effect is reproduced as well. This result means t

APA, Harvard, Vancouver, ISO, and other styles

36

CHEN, CHI-AN, and 陳麒安. "Nickel-phosphorus alloys deposited on magnesium alloy micro-arc oxidation layer using different catalysts." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/70561224320343144235.

Full text

Abstract:

碩士<br>國防大學理工學院<br>化學工程碩士班<br>105<br>Magnesium-lithium alloy(LZ91) is currently the lightest of practical metal, its advantages are light (similar to plastic), higher strength, specific rigidity and better heat dissipation. Magnesium alloy is extremely to corrosion which seriously affecting its application in real life. In this study, Micro - arc oxidation of wet - type method was used to prepare a oxide film on magnesium alloy which improves corrosion resistance. The surface of the magnesium-lithium alloy treated by micro-arc oxidation was not beautiful. In corrosive environment, the outside l

APA, Harvard, Vancouver, ISO, and other styles

37

Chang, Chih-Wei, and 張智維. "A study of optical reflective layer with copper alloy." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/dqr7rs.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>製造科技研究所<br>93<br>In this study, copper alloy adding Ti-Zr and Al-Zr was the target and made the cupper alloy ingots by vacuum arc remelter (VAR). After rolling and heat treatment, the two-inch round target was cut by wire electrical discharge machining (WEDM). DC sputtering deposited cupper alloy thin films on silicon base materials and optical glasses to discuss the thin film microstructures、compositions、practical performances and optical characteristics. Metallographic methods and structure analysis were used to identify the reflectivity、surface morphology and structures of

APA, Harvard, Vancouver, ISO, and other styles

38

Chen, Kuan-Ting, and 陳冠廷. "Hole Mobility Calculation of Strained Silicon-based Alloy Inversion Layer." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/19191830524761977918.

Full text

Abstract:

碩士<br>國立中興大學<br>物理學系所<br>101<br>Advanced MOSFET device formed from novel Si-based materials, such as silicon-germanium (SiGe) alloys, are simple and low cost to manufacture. In this thesis we focus on hole mobility in the inversion layer of the MOSFETs using novel silicon-germanium alloy channel materials. The primary topic of this work is the theoretical calculation of hole mobility in the SiGe alloy PMOSFET inversion layer. Hole mobility in the SiGe alloy inversion layer is calculated using a k.p band structure method and the Kubo-Greenwood mobility formula. The model parameters used in the

APA, Harvard, Vancouver, ISO, and other styles

39

Parng, Shaw-Hwa, and 龐紹華. "Injection Molding of Plastic Parts Covered with Superplastic Alloy Layer." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/69428580277467378923.

Full text

Abstract:

博士<br>國立臺灣大學<br>機械工程學研究所<br>89<br>A hybrid process combining the forming of superplastic Zn-22Al sheet with plastic injection molding is developed in this study. The product is a plastic part covered with a zinc-aluminum layer, providing a continuous metal enclosure for shielding against EMI. The process is first investigated with aid of moldability study and process observation. Plates with features such as rib or boss are molded. The moldings of housing cases with different degrees of preforms for improving moldability and a variety of schemes for reducing warpage are also investigated.

APA, Harvard, Vancouver, ISO, and other styles

40

Gu, Shao-Ming, and 谷紹民. "Synthesis of Large-Area Graphite Layer from Fe-Ni-Cu Alloy." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/x369dh.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>材料科學與工程研究所<br>99<br>This research was using the liquid phase of Fe-Ni-Cu alloy to dissolve graphite powder; precipitate then synthesis to a large-area graphite layer on the surface of the alloy. The research used a sintering vacuum at 1350 ℃ for up to 5 hours. To observe the interaction of Fe-Ni-Cu with carbon at different isothermal times, using samples of 1.5C-Fe58.45Ni25.05Cu15 (wt%), lead to the investigation of the graphite layer growth mechanism. According to this research, copper had played an important role of controlling the segregation of carbon. The growth rate and

APA, Harvard, Vancouver, ISO, and other styles

41

CHENG, CHEN-YI, and 鄭駿毅. "The Study of Corrosion Properties of MAO Layer on Magnesium Alloy." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/02362332454877411327.

Full text

Abstract:

碩士<br>國防大學理工學院<br>化學工程碩士班<br>104<br>Magnesium and its alloys as the lightest structural material, has some excellent properties such as low density, high strength, excellent casting and workability, etc. The application of magnesium alloys has been widely used in industry field. However, magnesium alloys have a poor corrosion resistance and limit their application. Many surface treatment techniques have been developed to protect the magnesium alloys from corrosion, including chemical treatment, oxidation, organic coatings, conversion coating, anodizing and metal coating. In this study, magnesi

APA, Harvard, Vancouver, ISO, and other styles

42

Fan, Chao-Hsiung, and 范朝雄. "Study on the Oxidation Wear Behavior of Laser Clad Layer of Pre-placed Nickel-based Alloy Powder." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/46056716634181532285.

Full text

Abstract:

碩士<br>國立中正大學<br>機械系<br>90<br>Abstract In this work, the Nickel-based alloy powder Metco 15E and Colmonoy 88 were mixed with binder and were pre-placed on the surface of mild steel substrate and then cladding of these alloy by using Nd-YAG laser was carried out. Study was carried out to evaluate the wear characteristics of clad layers before and after oxidation at elevated temperature. In order to probe into the characteristics of oxidation layer, compositions of oxides were analyzed by scanning electron microscopy (SEM) and energy dispersive X-Ray Spectrometry (EDS). Besides, the in

APA, Harvard, Vancouver, ISO, and other styles

43

Wu, CH, and 吳忠興. "Al2O3/ZrO2 Double Layer on Co-Cr-Mo Alloy by Electrolytic Deposition." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/45966088070308371001.

Full text

Abstract:

碩士<br>國立中興大學<br>材料工程學研究所<br>89<br>Double layers of Al2O3/ ZrO2 composite films were Co-Cr-Mo alloy in 0.003125M ZrO(NO3)2 and then in 0.01M Al(NO3)3 aqueous solution. Various compositions of composite coating were obtained by controlling several electrochemical parameters, such as solution concentration, applied potential, deposition time and different sintering conditions. Its characterization was conducted by using potentiostat, SEM/EDS, XRD, immersion test, wear test and scratch test. The alumina coating has a better quality in resistance corrosion and wear, but the zirconia coat

APA, Harvard, Vancouver, ISO, and other styles

44

Tsai, Yi-Lin, and 蔡易霖. "Synthesis of Large-Area Graphene Layer from Fe-Ni-Cu-Mn Alloy." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/kw7kq9.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>材料科學與工程研究所<br>100<br>This research used the liquid phase of Fe-Ni-Cu-Mn alloy to dissolve graphite powder; precipitate then synthesis to a large-area graphite layer on the surface of the alloy. We made use of a smelting vacuum furnace at 1350 ℃ for up to 5 hours to obtain the various samples in different alloy power ratios. And, we found some formulas which can produce a large-area graphene. According to our observation, A proper dendrite structure collocate a fine graphite wrinkle which will help the forming of partition phenomenon between graphite layers. In other words, t

APA, Harvard, Vancouver, ISO, and other styles

45

Hsieh, Chih-Hung, and 謝志宏. "Study on Corrosion Resistance of Copper-Zinc Alloy by Multi-layer Coating." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/afw266.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>資源工程研究所<br>106<br>Copper-zinc alloy is the most important material in terms of electronic connectors. Most of the connector industries apply a protective layer by electroplating on the surface of alloy material. Traditional protective layer consists of nickel-plating on the first layer and tin-plating on the surface layer. This research puts major emphasis on multi-layered plating of the alloy material. Design of protective layer is copper-plating on the first layer, nickel-plating on the second layer, and tin-plating on the appearance. Under the requirement of the steady pro

APA, Harvard, Vancouver, ISO, and other styles

46

Hsieh, Ping-Feng, and 謝秉峰. "A Study of Carrier Mobility in the Strained Si-based Alloy Inversion Layer." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/55868720862078456843.

Full text

Abstract:

博士<br>國立中興大學<br>電機工程學系所<br>101<br>MOSFETs formed from novel Si-based materials, such as silicon-carbon and silicon-germanium alloys, have the advantage of low cost and are simple to manufacture. Therefore, in this thesis we focus on carrier mobility in the inversion layer of MOSFETs using novel Si-based channel materials. The primary topic of this thesis is the theoretical calculation and experimental measurement of carrier mobility in a Si-based MOSFET inversion layer. We introduce three MOSFET channel materials: silicon-carbon, silicon-germanium alloy, and Ge (the upper limit of the silicon-

APA, Harvard, Vancouver, ISO, and other styles

47

Hsiao, Yo-Cheng, and 蕭祐晟. "Preparation of high emissivity layer on titanium alloy by micro-arc oxidation process." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/01333922336244322829.

Full text

Abstract:

碩士<br>中華大學<br>機械工程學系<br>105<br>There are various high emissivity heating pads in the market, however the medical performance of some heating pads is still open to discussion. The traditional infrared heating sources are mostly from electric wire and carbon fiber based composites. Unfortunately, they exist serious energy loss problems during energy transfer which needs to be improved. This study aims to prepare a high emissivity layer on titanium metal by micro arc oxidation process. The energy loss problems can be significantly improved because emission layer and substrate are integrated into

APA, Harvard, Vancouver, ISO, and other styles

48

Lin, Mao-Cheng, and 林茂城. "Study of tungsten wire coating with metal alloy layer using electric discharge coating (EDC)." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/46570721072809586738.

Full text

Abstract:

碩士<br>雲林科技大學<br>機械工程系碩士班<br>98<br>In this study, it is practiced with electric discharge coating (EDC), in the alignment mechanism of spiral way, around the whole circumference of tungsten wire. The multi-layer composite electrode is composed of titanium and graphite, stacked alternatively, tungsten wire is taken as the workpiece, in the process of the electric discharge, the electrode and the workpiece are both fused and they solidify on the surface of the workpiece, forming the coating of titanium carbide. Taguchi’s L9 orthogonal array is applied in the experiment to acquire the effects of t

APA, Harvard, Vancouver, ISO, and other styles

49

NIAN, ZHU-MIN, and 粘竺民. "Characterization of LSMO Protective Layer Coated on Fe-Cr Alloy by Aerosol Deposition Method." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/50617861191021351121.

Full text

Abstract:

碩士<br>國立中央大學<br>能源工程研究所<br>101<br>In recent years, solid oxide fuel cell working temperature was down to 600℃ to 800℃, thus ferritic stainless steel was used as interconnect in Solid Oxide Fuel Cell (SOFC). The functions of interconnect are electrical conduction and separated air and fuel in cathode and anode, respectively. However, long term in SOFC operating atmosphere, the oxidation and Cr poisoning are nonetheless formidable to cause the failure of interconnects. The protective layer coating on the materials surface was effective way to barrier Cr outward diffusion and excess oxide lay

APA, Harvard, Vancouver, ISO, and other styles

50

Liou, Yiou-Hsin, and 柳耀翔. "Preparation and Characterisitics of Electrochemical Atomic Layer Deposited Copper-Silver Alloy Film on Interconnection." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/65m42k.

Full text

Abstract:

碩士<br>國立虎尾科技大學<br>材料科學與綠色能源工程研究所<br>102<br>This paper describes the formation of Cu and Cu-Ag nanofilms using electrochemical atomic layer deposition (EC - ALD), which combine atomic layer deposition (ALD) with underpotential deposition (UPD). Ag materials and technigues may ultimately be need to address the low resistivity requirements of interconnection, which are project to have current density greater than 4.13 mA/cm2 by 2018, and super-filling Cu-Ag using the great gap filling of EC-ALD. The Si (100) wafer coated with 10 nm Ru films by pHysical vapor deposition, and the substrate was clea

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!