Diamond Like Carbon Films
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Effect of DLC Films with and without Silver Nanoparticles Deposited On Titanium Alloy
Resumo O filme de carbono semelhante a diamante (DLC) é um material de revestimento duro e biocompatível que pode impedir a corrosão com liberação de íons metálicos. Este estudo avaliou as características estruturais do filme de DLC, com e sem nanopartículas de prata (Ag), depositadas por plasma (PECVD) em liga de titânio (Ti-6Al-4V) e formação �
Braz. Dent. J.. Publicado em: 28/11/2019
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2. Dependence of Wear and Mechanical Behavior of Nitrocarburized/CrN/DLC Layer on Film Thickness
Diamond-like carbon (DLC) films are amorphous metastable carbon form that provide interesting mechanical and tribological properties. The role of film thickness influence upon wear and mechanical properties is of interest and not yet fully reported. In this study, two samples of previously plasma nitrocarburized, quenched and tempered H13 steel were duplex t
Mat. Res.. Publicado em: 31/01/2019
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3. Carbon based DLC films: Influence of the processing parameters on the structure and properties
ABSTRACT Hydrogenated carbon-based films, such as DLC (“Diamond Like Carbon”), have interesting properties such as excellent tribological behavior, low friction coefficient, high superficial hardness and good wear resistance; they are chemically inert and highly corrosion resistant. They are deposited by means of PACVD (plasma-assisted chemical vapor dep
Matéria (Rio J.). Publicado em: 19/07/2018
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4. Macrophages adhesion rate on Ti-6Al-4V substrates: polishing and DLC coating effects
Abstract Introduction Various works have shown that diamond-like carbon (DLC) coatings are able to improve the cells adhesion on prosthesis material and also cause protection against the physical wear. On the other hand there are reports about the effect of substrate polishing, in evidence of that roughness can enhance cell adhesion. In order to compare and
Res. Biomed. Eng.. Publicado em: 2016-06
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5. Polipropileno clarificado recoberto com filme de carbono amorfo hidrogenado pelo processo PECVD / Clarified polypropylene coated with hydrogenated amorphous carbon film by PECVD process
This work aimed to study the feasibility of application of clarified polypropylene (cPP) coated with hydrogenated amorphous carbon films (a-C:H) deposited by Plasma Enhanced Chemical Vapour Deposition (PECVD) in food packaging, mainly targeting the segment of bottles for carbonated beverages. For the deposition of films of a-C:H using different deposition pa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/10/2011
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6. Modificação da superfície do aço para melhorias na aderência de filmes de DLC / Steel surface modification for DLC films adhesion improvements
Em vista das excelentes propriedades físico-químicas dos filmes de carbono tipo-diamante (Diamond like Carbon-\textit{DLC}), atualmente, existe uma corrida científica e tecnológica para o desenvolvimento deste revestimento sobre superfícies metálicas em geral e, em especial, aquelas à base de ferro. A partir do momento em que se alcançarem melhorias
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/03/2011
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7. Estudo dos parâmetros de deposição de filmes finos de carbono amorfo hidrogenado obtidos pelo processo PECVD em embalagens de PET pós-consumo reciclado / Study of the deposition of thin films of hydrogenated amorphous carbon obtained by PECVD process in packaging recycled post consumer PET
Atualmente, observa-se que os resíduos poliméricos representam uma elevada parcela na composição dos resíduos sólidos urbanos (RSU). Dentre estes materiais tem-se destaque o poli (tereftalato de etileno) (PET) que é um dos principais polímeros consumidos no segmento de embalagens de rápido descarte. Desse modo, a reciclagem de PET visando aplicaçã
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/12/2010
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8. Study of optical and electro-optical properties of diamond-like carbon films - DLC. / Estudo das propriedades ópticas e eletro-ópticas de filmes de carbono amorfo tipo diamante - DLC.
In this work it was studied electrical and optical characteristics of diamond-like carbon (DLC) films deposited in a reactive RF magnetron sputtering system on silicon and glass substrates. Samples were deposited at different process conditions in each type of substrate at two pressure conditions (5 mTorr and 10 mTorr) and four conditions of RF power (100 W,
Publicado em: 2010
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9. Influence of high frequency and moderate energy pulses on DLC deposition onto metallic substrates by magnetron sputtering technique
The deposition of Diamond-like carbon (DLC) films brings excellent mechanical, chemical, optical and electronic properties to a large range of materials. However, a problem to be overcome is its poor adhesion on metallic substrates. Usually, a silicon layer must be deposited on the surface of metals previous to DLC film deposition. In fact, in our experiment
Brazilian Journal of Physics. Publicado em: 2009-06
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10. Filmes de diamante nanocristalino infiltrados em substratos de silício poroso através das técnicas CVD/CVI / Nanocrystalline diamond films infiltrates in porous silicon substrate by CVD/CVI Processes
The growth of nanocrystalline diamond films (NCD) on porous silicon (PS) substrate was studied using high resolution scanning electron microscopy, high resolution X-ray diffraction, X-ray photoelectron spectroscopy and Raman scattering spectroscopy. The NCD/PS films resulted in a composite material, with great potential for electrochemical application, mainl
Publicado em: 2009
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11. Estudo e aplicação das propriedades elétricas, térmicas e mecânicas de materiais amorfos piezoresistivos em transdutores de pressão. / Study and application of eletrical properties, thermal and mechanical of amorphus matherials in piezoresistive.
This tesis presents the piezoresistivity theoretical and experimental study for two materials with amorphous structure. The first material is the Diamond Like Carbon and the other is the Indium Tin Oxide. The work includes the bibliographic study, theoretical and practical design of structures for testing individual and piezoresistors configured in bridge, i
Publicado em: 2009
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12. Development of a reactor for growth of diamond tubular films / Desenvolvimento de um reator para o crescimento de filmes diamantiferos tubulares
A hot-filament chemical vapor deposition system was designed and built to grow diamond thin films. This system fed with ethanol highly diluted in hydrogen was employed to deposited diamond layers onto quartz tubes with diameters of 6 mm and length of 10 cm. High uniformity microcrystalline diamond films were obtained thanks the maintenance of the substrate i
Publicado em: 2008