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Eletrólito sólido β/β”-alumina para protótipo de bateria sódio-níquel
(Universidade Federal de São Carlos, 2014-10-07)
Itaipu Binational along with the Swiss company power generation Kraftwerke Oberhasli AG/KWO, are developing a battery of nickel-sodium salt (Na/NiCl2), which uses β/β"-Al2O3 ceramic as solid electrolyte, to apply on electric ...
Síntese e sinterização em micro-ondas, e caracterização da Perovskita BA 0,5Sr0,5Co0,8Fe0,2O 3-δ
(Universidade Federal de São Carlos, 2014-02-27)
Ba0,5Sr0,5Co0,8Fe0,2O3-δ (BSCF) perovskite-type oxide is currently one of the most promising materials for applications in oxygen separation membranes. BSCF powder synthesis has received considerable attention because ...
Preparação de nanocompósitos baseados na intercalação de argilominerais em matrizes ureia-formaldeído para aplicação como fertilizantes de liberação controlada
(Universidade Federal de São Carlos, 2014-02-27)
The increase on the price of fertilizers, and the high Brazilian importing
dependency of this material, raise the cost of cultures. Such cost may be
reduced by more efficient and efficiently used fertilizers. From an ...
Investigação do desenvolvimento microestrutural de eletrólito sólido β/β’’-alumina visando sua utilização em bateria ZEBRA
(Universidade Federal de São Carlos, 2014-10-09)
The ZEBRA battery (Zero Emission Battery Research Activity) is an efficient electrochemical energy storage device with high energy density and high power. This has been considered one of the key technologies for insertion ...
Estudo da cinética de oxidação em altas temperaturas da liga SV15 aplicada na fabricação de sedes de válvulas de escape de motores automotivos
(Universidade Federal de São Carlos, 2014-04-14)
The SV15 alloy is applied in the production of the exhaust valve seats of automotive engines. The conditions of service in which the part is submitted require materials resistant to oxidation because of high temperature ...
Otimização do processo de soldagem por fricção por ponto (FSpW) de soldas de materiais similares e dissimilares de ligas leves
(Universidade Federal de São Carlos, 2014-08-07)
Currently there is a lot of pressure in the aeronautical and automobilistic transport section in order to reduce the fuel consumption and consequently cost and gas emissions. This measure has increased in the last years ...
Influência da nanoargila (O-MMT) nas propriedades mecânicas de polipropileno reforçado com fibra de vidro
(Universidade Federal de São Carlos, 2014-07-01)
Hybrid filler reinforced thermoplastics composed with short glass fiber (GF) and different particulate fillers present special interest for engineering applications, as substantial reductions in mechanical anisotropy and ...
Efeito da adição de boro na microestrutura e na resistência ao desgaste do aço inoxidável AISI 430 conformado por spray
(Universidade Federal de São Carlos, 2014-08-04)
The contact between drill pipes during oil well exploitations induces a severe wear process that might cause well bore pipe wall rupture, fluids leakage, environmental impacts, and possibly fatal accidents. The problem is ...
Caracterização microestrutural e mecânica da liga AA7050 reciclada por conformação por spray, extrusão e forjamento rotativo
(Universidade Federal de São Carlos, 2014-07-03)
The objective of this study was to evaluate the microstructure and the mechanical properties of hot extruded bars and cold rotary swaging wires of an AA7050 alloy. The ingot for the mechanical conformation operations was ...
Avaliação das características mecânicas de compósitos de cimento Portland reforçados com fibras de polipropileno aditivadas com modificadores de superfície
(Universidade Federal de São Carlos, 2014-07-25)
The application of polymeric fibers as reinforcement in cement based composites is a highly developed technology in various applications in construction. The use of polypropylene fibers have been widely used, but with some ...