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Now showing items 121-130 of 264
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 ...
O uso de B4C como aditivo de sinterização de SiC-Si3N4 visando o aumento da resistência à oxidação
(Universidade Federal de São Carlos, 2010-02-04)
In order to fulfill modern market requirements based on increased search for SiC Si3N4 products with high performance and good cost/benefit ratio, there is a natural need for additives able to sinter as well as decrease ...
Utilização de alumínio recoberto por aspersão térmica em tubulação de condensadores evaporativos
(Universidade Federal de São Carlos, 2013-12-16)
In evaporative condenser production, galvanized steel has become the most suitable material for piping system production, since it has high corrosion resistance and relative low commercial value. With proper surface ...
Influência da geometria da nanocarga na estruturação, orientação e propriedades de filmes tubulares de nanocompósitos de PA6
(Universidade Federal de São Carlos, 2012-06-13)
The structure and morphology of polymers and consequently their properties are dependent on the processing conditions. During the blown film process, high shear and elongational flows can induce a preferred orientation of ...
Síntese por redução carbotérmica assistida por micro-ondas de carbeto de zircônio
(Universidade Federal de São Carlos, 2013-09-12)
One of the major motivations for the development of new synthesis routes is a continuing need for fast and energy-efficient methods that allow obtaining materials with differentiated technological characteristics and ...
Aplicação do resíduo de bauxita como fonte de Al2O3 e Fe2O3 na preparação de clínqueres de cimentos portland
(Universidade Federal de São Carlos, 2013-03-19)
During the past decades, the bauxite residue (BR) generated in the aluminium production was considered unusable waste. However, the difficulties and the costs associated with the residue management and storage have motivated ...
Desenvolvimento de blendas nanoestruturadas SAN/PBT modificadas com copolímeros acrílicos reativos
(Universidade Federal de São Carlos, 2012-08-02)
In this work we have obtained transparent nanoblends of poly(styrene-coacrylonitrile) (SAN) as matrix and poly(butylene terephthalate) as a nanometric phase. The materials were produced by means of reactive mixing in a ...
Propriedades mecânicas das ligas Ti34Cu36Ni8Zr22 e (TiZr)80Co12Fe8
(Universidade Federal de São Carlos, 2012-03-23)
Bulk amorphous and nanocrystalline alloys have attracted great interest from the scientific community. Titanium based alloys have demonstrated potential for formation of amorphous. This study aimed at to evaluate the ...
Processamento e estudo das propriedades de filmes e peças injetadas de nanobiocompósitos de nanocristais de celulose e matrizes biodegradáveis
(Universidade Federal de São Carlos, 2014-04-04)
This study aimed at evaluating the potential of application of cellulose nanocrystals as reinforcing elements of biodegradable polymeric matrices, in the films and injection molded pieces applications. Two polymeric matrices ...