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Dissertations / Theses on the topic 'Filtered vacuum arc'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Mustapha, Nazir Mohamad. "Reactive filtered arc evaporation." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/26797.

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Conventional physical vapour deposition (PVD) techniques usually result in films of lower quality than the corresponding bulk material. A major problem with PVD films is the presence of columns and voids throughout the thickness of the film. The films may have a low packing density, low micro-hardness and in many cases poor adhesion to the substrate. Many of these problems are a direct consequence of the low energy of the depositing atoms arriving at the substrate during film growth. The resulting film porosity gives rise to a reduction in mechanical strength, and in the case of dielectric opt

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2

Belous, V. A., S. A. Firstov, V. F. Gorban, et al. "Properties of Coatings Deposited from Filtered Vacuum Arc Plasma with HEA Cathode." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35323.

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Ti-V-Zr-Nb-Hf metallic and nitride films were deposited by filtered vacuum arc plasma from a single equiatomic HEA cathode. The composition, microstructure, mechanical properties, thermal stability and corrosion properties were investigated. The deposited metallic film has a two-phase structure with bcc and hcp-lattice. The nitride films were found to have only an fcc structure. All coatings have nano-grained structures, with grain sizes 5 nm for metallic and 36 nm for nitride. The nitride coatings have a compressive stress of around – 12,5 GPa, high hardness ~ 40 GPa and elastic modulus

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3

Minault, Christophe S. "Filtered vacuum arc deposition of diamond like carbon films on sharp edged samples." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298488.

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4

Veerasamy, Vijayen S. "Tetrahedral amorphous carbon : deposition, characterisation and electronic properties." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337824.

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5

Elzwawi, Salim Ahmed Ali. "Cathodic Arc Zinc Oxide for Active Electronic Devices." Thesis, University of Canterbury. Electrical and Computer Engineering, 2015. http://hdl.handle.net/10092/10852.

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The filtered cathodic vacuum arc (FCVA) technique is a well established deposition method for wear resistant mechanical coatings. More recently, this method has attracted attention for growing ZnO based transparent conducting films. However, the potential of FCVA deposition to prepare ZnO layers for electronic devices is largely unexplored. This thesis addresses the use of FCVA deposition for the fabrication of active ZnO based electronic devices. The structural, electrical and optical characteristics of unintentionally doped ZnO films grown on different sapphire substrates were systematically

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6

Oblitas, Raissa Lima de. "Avaliação da composição elementar de filmes finos de ligas metálicas depositados por Arco Catódico Filtrado em Vácuo utilizando RBS e EDS quantitativo." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-24102016-115435/.

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Devido à relevância de filmes finos, as técnicas que são utilizadas para produzi-los e também para caracteriza-los tem se tornado importante. Neste contexto, foram analisados filmes finos de até 100 nm, de duas ligas metálicas (cromel e alumel), obtidos a partir da deposição por plasma de Arco Catódico Filtrado em Vácuo (Filtered Cathodic Vacuum Arc - FCVA). O objetivo deste projeto foi avaliar a similaridade em composição elementar entre os materiais utilizados para deposição, que operam como cátodos, e os filmes finos depositados, a partir de medições obtidas pela técnica de microanálise qua

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7

Vasyliev, V. V., A. A. Luchaninov, E. N. Reshetnyak, and V. E. Strelnitskij. "Comparative Characteristics of Stress and Structure of TiN and Ti0.5-xAl0.5YxN Coatings Prepared by Filtered Vacuum-Arc PIIID Method." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34913.

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A comparative study of the structure and stress state of Ti0.5-xAl0.5YxN and TiN coatings deposited under identical conditions from the filtered vacuum-arc plasma under high voltage pulsed bias potential on the substrate was carried out. It was found that for Ti0.5Al0.5N coatings the dependence of the residual stress on the amplitude of the pulsed voltage potential is non-monotonic with a minimum when the amplitude is of 1 kV. As for TiN films, a monotonic decrease in the level of residual stresses takes place when the amplitude of the potential is increased in the range 0-2.5 kV. Non-mon

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8

Kuhakan, J., M. Medhisuwakul, and L. D. Yu. "Filtered Cathodic Vacuum Arc Deposition of Porous and Nanostructured Carbon and Hybrid C-Mo Thin Films for Fuel Cell Membranes." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34867.

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In our proton exchange membrane (PEM) fuel cells, the electrolyte is a catalyst platinum (Pt) coated nafion membrane. In order to increase the electrochemically active catalyst area to enhance the cell performance but without sacrificing the electrical conductivity of the membrane, carbon thin films were deposited onto the membrane by using the filtered cathodic vacuum arc deposition (FCVAD) technique. With varying the deposition conditions, it was possible to form porous carbon films and nanoisland and nanorod structure surface which increased the catalyst area when a higher He working g

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9

Akkaya, S. S., V. V. Vasyliev, K. Kazmanl, et al. "Mechanical and Tribological Properties of TiN Coatings Produced by PIII&D Technique." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35187.

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The structure, mechanical and tribological properties TiN coatings рroduced with PIII&D by using rectilinear filtered vacuum arc plasma system are present. The results of scratch testing and wear reciprocating testing clearly revealed the positive effect of pulse bias (0.5÷2.5 kV) application on tribological behavior of the TiN coatings in comparison the coatings deposited with DC bias (150 V). Application of pulsed bias potential leads to a significant reduction in the friction coefficient and increasing of coatings wear resistance due to a change in their structure. The orientation of c

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10

杜禹寬. "Deposition of Al0.5CoCrCu1.5FeNi Films with Filtered Cathodic Vacuum Arc Deposition Apparatus." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/12714418462452046671.

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11

"Characterization of ta-C film prepared by pulsed filtered vacuum arc deposition system." 2000. http://library.cuhk.edu.hk/record=b5890332.

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Lau Wing Fai.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2000.<br>Includes bibliographical references (leaves 101-105).<br>Abstracts in English and Chinese.<br>Abstract --- p.i<br>Abstract (Chinese version) --- p.iii<br>Acknowledgement --- p.iv<br>Content --- p.v<br>List of figure caption --- p.vii<br>List of table caption --- p.xi<br>Chapter Chapter 1 --- Introduction<br>Chapter 1.1 --- Nomenclature --- p.1<br>Chapter 1.2 --- Comparison of diamond and DLC --- p.2<br>Chapter 1.3 --- Comparison of the amorphous hydrogenated and hydrogen free amorphous carbon --- p.4<br>Chapt

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12

"Characterization of FePt-based nanocomposite thin films prepared by pulsed filtered vacuum arc deposition." 2005. http://library.cuhk.edu.hk/record=b5892330.

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by Lai Yiu Wai.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2005.<br>Includes bibliographical references.<br>Abstract in English and Chinese.<br>Abstract<br>Abstract (Chinese)<br>Table of Contents<br>List of Figures<br>List of Tables<br>Chapter Chapter 1 --- Introduction<br>Chapter 1.1 --- Overview --- p.1-1<br>Chapter 1.2 --- Conventional recording --- p.1-2<br>Chapter 1.3 --- Superparamagnetism --- p.1-2<br>Chapter 1.4 --- Possible solutions --- p.1-4<br>Chapter 1.4.1 --- Perpendicular recording --- p.1-5<br>Chapter 1.4.2 --- Patterned media --- p.1-6<br>Chapter 1.4.3 --- Hig

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13

Guillen, E., I. Heras, Llorente G. Rincon, F. Lungwitz, M. Alcon-Camas, and R. Escobar-Galindo. "Room temperature deposition of highly dense TiO2 thin films by Filtered Cathodic Vacuum Arc." 2019. https://hzdr.qucosa.de/id/qucosa%3A33929.

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A systematic study of TiO2 films deposited by dc filtered cathodic vacuum arc (FCVA) was carried out by varying the deposition parameters in a reactive oxygen atmosphere. The influence of the oxygen partial pressure on film properties is analyzed. Composition was obtained by Rutherford backscattering spectroscopy (RBS) measurements, which also allow us to obtain the density of the films. Morphology of the samples was studied by scanning electron microscopy (SEM) and their optical properties by ellipsometry. Transparent, very dense and stoichiometric TiO2 films were obtained by FCVA at room tem

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14

"Characterization of metal-carbon nanocomposite magnetic thin films prepared by pulsed filtered vacuum arc deposition." 2002. http://library.cuhk.edu.hk/record=b5891206.

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by Poon Chun Yu.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2002.<br>Includes bibliographical references (leaves 110-112).<br>Abstracts in English and Chinese.<br>ACKNOWLEDGEMENTS --- p.2<br>ABSTRACT --- p.3<br>TABLE OF CONTENTS --- p.5<br>LIST OF FIGURES --- p.8<br>LIST OF TABLES --- p.13<br>Chapter CHAPTER 1 --- INTRODUCTION --- p.14<br>Chapter 1.1 --- Overview --- p.14<br>Chapter 1.2 --- Ferromagnetism --- p.15<br>Chapter 1.3 --- Ferromagnetic granular thin film --- p.16<br>Chapter 1.4 --- Ferromagnetism-magnetization --- p.17<br>Chapter 1.5 --- Ferromagnetism - magneti

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15

Won, Jhih-Wei, and 翁志偉. "Characterization and Synthesis of Fluorine Doped Amorphous Carbon Films by Filtered Cathodic Vacuum Arc System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/30745923669553838173.

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16

"Characterization of magnetic nanocomposite thin films for high density recording prepared by pulsed filtered vacuum arc deposition." 2004. http://library.cuhk.edu.hk/record=b6073751.

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by Chiah Man Fat.<br>"March 2004."<br>Thesis (Ph.D.)--Chinese University of Hong Kong, 2004.<br>Includes bibliographical references.<br>Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.<br>Mode of access: World Wide Web.<br>Abstracts in English and Chinese.

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17

Lin, Chun-Chun, and 林君純. "Processing and properties of chromium carbide thin films synthesized by a filtered cathodic vacuum arc plasma system." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/56037751916529370172.

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博士<br>國立清華大學<br>材料科學工程學系<br>95<br>In this thesis, the 90o-bend filtered cathodic vacuum arc (FCVA) technology was employed to deposit the chromium carbide films on the steel (AISI D2). This investigation was to compare various conditions which including the deposition temperature, the substrate bias voltage and the C2H2/Ar flow. The micro-structures, mechanical properties, corrosion behavior and optical properties of the chromium carbide film are thoroughly discussed. The uniform and dense of the chromium carbide films have been successfully synthesized using our FCVA system. The chromium carb

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18

Hsueh, Yang-Chih, and 薛仰志. "Characteristics and properties of fluorinated amorphous carbon (a-C:F) films deposited by filtered cathodic vacuum arc plasma system." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/54701157264833755449.

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碩士<br>國立清華大學<br>材料科學工程學系<br>95<br>Diamond-like carbon (DLC) films are known for their high mechanical hardness, high wear resistance, low friction coefficients, optical transparency, electrical resistivities, besides, have extensively applications in many areas such as the electronic devices, high precise mechanisms, etc. Even though the incorporation of fluorine into DLC films will reduce their surface energy, don’t change their original excellent properties. The hydrophobic characteristics attach DLC films superior properties can be used in nonstick kitchenware and protective coatings for op

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19

Rincón-Llorente, G., I. Heras, Rodríguez E. Guillén, E. Schumann, M. Krause, and R. Escobar-Galindo. "On the Effect of Thin Film Growth Mechanisms on the Specular Reflectance of Aluminium Thin Films Deposited via Filtered Cathodic Vacuum Arc." 2019. https://hzdr.qucosa.de/id/qucosa%3A33921.

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The optimisation of the specular reflectance of solar collectors is a key parameter to increase the global yield of concentrated solar power (CSP) plants. In this work, the influence of filtered cathodic vacuum arc deposition parameters, particularly working pressure and deposition time, on the specular and diffuse reflectance of aluminium thin films, was studied. Changes in specular reflectance, measured by ultraviolet–visible and near-infrared spectroscopy (UV-vis-NIR) spectrophotometry, were directly correlated with thin film elemental concentration depth profiles, obtained by Rutherford ba

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20

Heras, I., M. Krause, G. Abrasonis, et al. "Advanced characterisation and optical simulation for the design of solar selective coatings based on carbon:transition metal carbide nanocomposites." 2019. https://hzdr.qucosa.de/id/qucosa%3A33924.

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Solar selective coatings based on carbon transition metal carbide nanocomposite absorber layers were designed. Pulsed filtered cathodic arc was used for depositing amorphous carbon: metal carbide (a-C:MeC, Me = V, Mo) thin films. Composition and structure of the samples were characterized by ion beam analysis, X-ray diffraction, Raman spectroscopy, and transmission electron microscopy. The optical properties were determined by ellipsometry and spectrophotometry. Three effective medium approximations (EMA), namely Maxwell-Garnett, Bruggeman, and Bergman, were applied to simulate the optical beh

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21

Lopez, Luis Felipe active 21st century. "Cyber-enabled manufacturing systems (CeMS) : model-based estimation and control of a solidification process." Thesis, 2014. http://hdl.handle.net/2152/28082.

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Vacuum arc remelting is a secondary melting process used to produce a variety of segregation sensitive and reactive metal alloys. The present day VAR practice for superalloys involves, typically, melting electrodes of 17'' into ingots of 20'' in diameter. Even larger diameter forging stock is desirable. However, beyond 20'' ingots of superalloys are increasingly prone to segregation defects if solidification is not adequately controlled. In the past years a new generation of model-based controllers was developed to prevent segregation in VAR by controlling melt rate, or the total amount of pow

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