Diamond Like Carbon Films
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. DLC with silver nanoparticles study for space and biomedical applications / Estudo de crescimentos de filmes de DLC com nanopartículas de prata para aplicações espaciais e biomédicas
Diamond-like carbon (DLC) is a metastable form of amorphous carbon with high mechanical hardness, chemical inertness, optical transparency, low friction coefficient and its wear resistant. Since centuries, silver is known as bactericidal agent and, as a soft metal, its also used as a solid lubricant. This project develops a deposition process to insert silve
Publicado em: 2008
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14. Estudo de crescimentos de filmes de DLC com nanopartículas de prata para aplicações espaciais e biomédicas / DLC with silver nanoparticles study for space and biomedical applications
O DLC (Diamond Like Carbon) é uma forma metaestável do carbono amorfo que reúne propriedades físicas e químicas, tais como, elevada dureza mecânica, estabilidade química, transparência no visível, baixa fricção e elevada resistência ao desgaste. A prata há muito tempo é conhecida por sua ação bactericida e, por ser um metal macio, é também
Publicado em: 2008
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15. Filmes intermediários para deposição de diamantes CVD sobre aços / Intermediate films for diamond deposition on steel
The present work is inserted in the area of Chemical Vapor Deposition of Diamond thin and freestanding films. The CVD diamond deposition on steel substrates is still a great challenge to overcome. Iron-like materials present negative effects for the CVD diamond growth process, as catalytic effects in the preferential nucleation of the graphitic phase and hig
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2006
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16. Adherent diamond-like carbon coatings on metals via PECVD and IBAD
Adherent and low-stress a-C:H films were deposited on Ti6Al4V and stainless steel substrates using PECVD and IBAD techniques. An amorphous silicon interlayer was applied to improve the adhesion of the a-C:H films on the metal substrates. The XPS technique was employed to analyze the chemical bondings within the interfaces. The elemental composition and atomi
Brazilian Journal of Physics. Publicado em: 2006-09
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17. Mechanical and vibrational properties of carbon nitride alloys
A study of ultraviolet and visible Raman spectroscopy was made in amorphous carbon nitride (a-C:Nx) and amorphous hydrogenated carbon nitride (a-C:Nx:H) thin films. Two growth techniques were used: 1) glow discharge was used for depositing hydrogenated films with diamond-like (at -200V of bias) and graphite-like (-800V of bias) structure and 2) ion beam assi
Brazilian Journal of Physics. Publicado em: 2006-06
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18. Fabrication and electrical characterization of field emission tips covered by DLC (Diamond Like Carbon) thin films / Fabricação e caracterização eletrica de ponteiras de emissão de campo recobertas com filme fino DLC (Diamond Like Carbon)
The objectives of this dissertation were the fabrication of silicon field emitter tips coated with diamond like carbon (DLC) thin films, and the study of its electrical behavior. We present the fabrication process of silicon tips that consists on four stages: photolithography, reactive ion etching SF6 plasma, thermal oxidation for sharpening, and the DLC dep
Publicado em: 2005
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19. Deposição de filme de diamante policristalino e diamond-like carbon-DLC por chama oxi-acetilenica
Recent advances in the CVD (chemical vapor deposition) process for low pressure deposition of the diamond and od the DLC (diamond-like carbon) have attracted many researches into this field in academic and industrial laboratories. The unusual physical and chemical properties of these materials make them highly desirable for scientific and technological appli
Publicado em: 1997