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Utilização de concentrados de eva-argila organofílica obtidos por spray drying, drais e extrusão no desenvolvimento de nanocompósitos poliméricos
(Universidade Federal de São Carlos, 2014-12-15)
The objective of this work was the development of polymer
nanocomposites with montmorillonite organoclays (OMMT) using EVA-OMMT
concentrated obtained by spray drying, Drais and extrusion, making the
characterization and ...
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 ...
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 ...
Desenvolvimento e caracterização de liga Fe-Mn-Si-Cr-Ni com efeito de memória de forma
(Universidade Federal de São Carlos, 2014-08-29)
The shape memory effect represents a physical property of materials with great potential applications in several sectors of Industry. In metallic materials, it’s a phenomenon associated to martensitic transformation and ...
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 ...
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 ...
Influência de variáveis de sinterização na microestrutura e propriedades mecânicas de peças de PTFE moldadas por prensagem isostática
(Universidade Federal de São Carlos, 2014-02-03)
Polytetrafluorethylene (PTFE) is used in a wide range of critical applications because of its outstanding chemical and thermal resistance, low surface energy and special tribological properties. Because of its ultra high ...
Produção por aspersão térmica de revestimentos amorfos resistentes à corrosão e ao desgaste utilizando a liga Fe60Cr8Nb8B24
(Universidade Federal de São Carlos, 2014-12-18)
Metallic coatings are generally designed to confer high wear and corrosion resistance to the substrate to be coated. These properties are essential to make structures suitable to resist to aggressive environment and operating ...
Rebitagem por fricçao de alumínio 2024-T351 em policarbonato
(Universidade Federal de São Carlos, 2014-10-24)
This dissertation addressed the feasibility study of Friction Riveting technique on polycarbonate and 2024-T351 aluminum alloy spot joints. Design of experiments and Artificial Neural Network modelling were used to investigate ...
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 ...