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Now showing items 11-20 of 42
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 ...
Resistência à corrosão e ao desgaste de recobrimentos metálicos produzidos com ligas amorfizáveis a base de ferro
(Universidade Federal de São Carlos, 2014-09-15)
Amorphous Iron-based alloys can be processed in such a way that, if
well designed, it can ensure an attractive combination of mechanical and
electrochemical properties, particularly in petrochemical industries where ...
Influência do tratamento superficial da nanocarga nas propriedades mecânicas de curta e longa duração de um nanocompósito de PEEK/nHA
(Universidade Federal de São Carlos, 2014-09-15)
In this dissertation the mechanical properties of short and long term of
PEEK/nHA nanocomposites with potential application as orthopedic implants
were studied. The nanohydroxyapatite (nHA) was surface-treated with ...
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 ...