Optical Proprieties
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Corrosion and Wear Resistance of Carbon Films Obtained by Electrodeposition on Ferritic Stainless Steel
In improving the corrosion and hardness proprieties of ferritic stainless steel, the use of protective coatings becomes an interesting alternative. In this study, a carbon layer was deposited on AISI 430 by electrodeposition using N,N-dimethylformamide with the addition of an organic dopant as the electrolyte. The AISI 430 stainless steel was pretreated by a
Mat. Res.. Publicado em: 2015-04
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2. Características mecânicas de vergalhões de aço auto-revenido
The rebar steel is one of the most utilized and diffused materials in Brazilian civil construction, as it is in the whole world, but it´s necessary to know more details about the rebar behavior as a material and not only as a structural element. Each day civil engineering searches for new alternatives to maximize the use of materials, from new structural ca
Publicado em: 2009
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3. Simulação dos processos de migração e relexação energética em sistemas orgânicos pi-conjugados emissores de luz / Simulation of energy migration and relaxation processes in organic pi-conjugated systems
Neste trabalho, o método de Monte Carlo é utilizado para simular o processo de difusão espectral da excitação em um sistema polimérico emissor de luz. A metodologia utilizada incorpora a relaxação energética intramolecular, a migração de energia incoerente entre segmentos conjugados e o processo final que pode ser radiativo (luminescência) ou nã
Publicado em: 2007
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4. Propriedades Ópticas de Semicondutores Orgânicos à Base de Polímeros Emissores de Luz / Optical proprieties of organic semiconductors based on light emitting polymers.
In this work, we studied the optical proprieties of absorption and emission of luminescent conjugated polymers based on poly(p-phenylene vinylene) (PPV). This material was processed in thin films by casting, spin-coating, self-assembled (SA) e Langmuir-Blodgett (LB) techniques, available in the Grupo de Polímeros Bernhard Gross, where the samples were chara
Publicado em: 2001
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5. Superficial Nitrogen Enrichment of Austenitic stainless steel ISO 5832-1 / ElevaÃÃo do teor superficial de nitrogÃnio no aÃo inoxidÃvel austenÃtico ISO 5832-1
The insertion of nitrogen in stainless steel has been studied since 1925. When in solid solution it produces a few effects such as: increase in mechanical strength, hardness, resistance to fatigue, to wear and corrosion. Although benefic effects of nitrogen on the proprieties of steel are well known, the introduction of this element in high amounts is not tr
Publicado em: 2001