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Preparação e caracterização de elastômeros reticulados dinamicamente de PA6-12/EVA
(2015-02-11)
Polymeric materials having good mechanical properties combined with flexibility are requirements to meet changing needs of the industry. These requirements can be met with the production of dynamically vulcanized/crosslinked ...
Relação estrutura propriedade da poliamida 6 aditivada com óleo de soja modificado com anidrido maleico
(2015-10-01)
The use of additives from alternative sources to petrochemical has attracted the interest of many academic researches and applications. The inputs as soybean oil have great potential in the polymer modification. However, ...
Filmes finos de carbono amorfo hidrogenado depositados por plasma DC pulsado melhorado por confinamento eletrostático : teoria e prática
(2014-06-24)
In this work, amorphous hydrogenated carbon (a-C:H) thin films were deposited
using a simple, low cost and efficient pulsed DC - plasma-enhanced chemical vapor
deposition technique improved by electrostatic confinement ...
Preparação e caracterização de filmes nanoestruturados suportados em membrana de celulose contendo nanopartículas de Au e TiO2 para produção de H2
(2014-06-24)
The search for renewable energy sources is a subject of great interest worldwide due to
growing energy demand, instability in oil prices and environmental problems. In this
context, the self-assembled thin films have ...
Microestrutura e propriedades tribológicas de aços austeníticos Fe-Cr-Ni-Mo sinterizados com adição de itria e boro
(2016-10-06)
Austenitic stainless steel materials are widely used in systems that require high
oxidation resistance and corrosion resistance. However, in contact with other surfaces,
these materials show a high coefficient of friction ...
Desenvolvimento e caracterização de composições elastoméricos de EPDM com redução no teor de óxido de zinco
(2016-06-27)
Zinc oxide nanoparticle (nano ZnO) is a kind of inorganic multifunctional filler, which has extensive uses in rubber additives. Notably, most of relevant researches about nano ZnO focused on using them as a substitute of ...
Avaliação química, microestrutural e tribológica de filmes finos de TiCxNy produzidos por arco catódico para aplicações decorativas
(2016-11-24)
The deposition of thin films can be employed to modify and/or functionalize the properties of a material’s surface, improving wear resistance (tribological properties) or changing the resistivity (electrical properties). ...
Avaliação de óleo vegetal natural e epoxidado em composições elastoméricas para banda de rodagem
(2017-07-05)
The incorporation of vegetable oils into the development of tread rubber formulation has been one of the alternatives to reduce the use of oil with high contents of aromatic polycyclics. Many studies suggest the substitution ...
Aproveitamento de resíduos de granalha de aço-carbono por metalurgia do pó
(2017-07-05)
This research has determined the parameters of powder metallurgy in order to use the wasted powder from the shot blasting process and transform it in components. The wasted was evaluated by its physical and micro-structural ...
Avaliação mecânica e tribológica de compósitos alumina-nióbio obtidos via sinterização por plasma pulsado
(2017-07-05)
Este trabalho apresenta um estudo das propriedades mecânicas e tribológicas de compósitos de alumina reforçados com partículas de nióbio obtidos pela técnica de sinterização por plasma pulsado (Spark Plasma Sintering – ...