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Now showing items 261-270 of 270
Solidificação rápida e conformação por spray de ligas ferrosas amorfizáveis a partir de ferros fundidos com adição de boro e nióbio
(Universidade Federal de São Carlos, 2015-07-31)
The amorphizable ferrous alloys and/or nanocrystalline ones have high
hardness properties and wear resistance which are important technologically.
Rapid solidification process with cooling rate between 102 - 106 K/s leads ...
Correlação entre morfologia, percolação elétrica e propriedades mecânicas de compósitos da blenda PLA/PBS com grafite expandido
(Universidade Federal de São Carlos, 2013-12-06)
In recent years, researchers from industry and universities have focused
their interests in polymer nanocomposites, especially in multifunctional
composites. The composites made from nano expanded graphite ( nGE ) ...
Desenvolvimento de vitrocerâmicas com estrutura NASICON condutoras por íon sódio da família NaGe2(PO4)3
(Universidade Federal de São Carlos, 2015-11-30)
Sodium batteries have a promising future owing to the low cost and abundance of sodium in nature. This growing interest has led to the quest for materials to optimize and improve the operation of these devices. Among the ...
Influência da taxa de resfriamento no módulo de elasticidade de ligas beta Ti e obtenção de diagramas CCT
(Universidade Federal de São Carlos, 2019-07-31)
The metallic alloys used as orthopedic implants, such as the Ti-6Al-4V, present some problems of biological and mechanical compatibility. In addition, the great difference between the elastic modulus of human bone and the ...
Seleção de sistemas de isolamento térmico multi-componentes para fornos de altas temperaturas baseada no desempenho térmico
(Universidade Federal de São Carlos, 2019-12-04)
Controlled heating through furnace development has allowed the humankind to mold the matter to obtain various products for several different purposes. However, some of them require high-temperature processes so that the ...
Desenvolvimento de nanocompósitos híbridos a partir de nanopartículas de magnetita funcionalizadas com macromoléculas de polietilenoglicol
(Universidade Federal de São Carlos, 2019-08-30)
New technologies aim for new materials. The increase in search for new materials with hybrid properties is growing exponentially. Polymers, metals and ceramics may be exposed within their application areas, but they cover ...
Desenvolvimento de filmes de amido incorporados com cera de abelha por casting contínuo
(Universidade Federal de São Carlos, 2019-08-09)
Starch films appear as an alternative to problematic non-biodegradable plastic films; however, they have low water resistance and require the addition of a hydrophobic component to be viable substitutes for non-biodegradable ...
Estudo das propriedades mecânicas, térmicas e de transporte do compósito com carbonato de cálcio nano e microparticulado em polipropileno
(Universidade Federal de São Carlos, 2011-03-04)
In this work were determined and compared to mechanical, thermal and barrier of the polypropylene composites containing micropartilate and microparticulate calcium carbonate. To prepare the composites, the filler was ...
O efeito dos tratamentos térmicos na microestrutura e nas propriedades mecânicas de rodas automotivas fundidas a baixa pressão na liga A356
(Universidade Federal de São Carlos, 2019-12-13)
The low-pressure die casting process to produce automotive aluminum alloy wheels is well known, and, in the last decades, has been consolidated as the most common way to produce light automotive wheels in large scale. The ...
Propriedades mecânicas e correlação dos parâmetros de FSW e DS-FSW em alta velocidade na liga AA2050-T84, para a indústria aeronáutica
(Universidade Federal de São Carlos, 2018-11-19)
Friction Stir Welding (FSW) and DS-FSW (double pass FSW) processes were employed in the aluminum AA 2050 T-84 plate joints aiming to make possible to increase the welding speed above 5 mm / s, to obtain welds with optimized ...