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Friction spot joining of aluminum alloy 2024-t3 and carbon-fiber-reinforced polyphenylene sulfide composite laminate with additional pps film interlayer
(Universidade Federal de São Carlos, 2015-11-30)
Friction Spot Joining (FSpJ) is a prize-winning joining technique for hybrid
metal-polymer composite structures. This master thesis was devised to
investigate the feasibility of FSpJ of metal-composite structures with ...
Efeito do envelhecimento em baixa temperatura nas propriedades de aços inoxidáveis lean duplex
(Universidade Federal de São Carlos, 2016-03-23)
In this work, the mechanical and corrosion properties of two lean duplex steels
(LDSS) 2101 and 2404 aged at 475 °C for up to 2000 h were assessed, and the
obtained results were compared with the standard duplex stainless ...
Investigação microestrutural e estudo das propriedades mecânicas da liga de alumínio AA2139 T3 e T8 soldadas por Friction Stir Welding - FSW
(Universidade Federal de São Carlos, 2011-02-17)
Aluminum alloys have low density and high corrosion resistance, and because of that this alloys are being increasingly used in aircraft industry. However, a downside of this alloys is its weldability in fusion process, ...
Produção e caracterização de recobrimentos de aço, empregando a liga amorfizável Fe-Cr-Nb-B
(Universidade Federal de São Carlos, 2012-02-13)
The equipments used to oil flow are submitted in an aggressive environment with the presence of hydrogen sulphide, carbon dioxide and sand, which contribute to corrosion and wear of the surface. To resist of these requests ...
Desenvolvimento de nanoblendas poliméricas PMMA/SAN
(Universidade Federal de São Carlos, 2012-08-03)
The motivation for this work was the idea that nanoblends are fundamentally dependent on the high interaction between the phases in the mixture. The strategy adopted in this study was based on the use of two polymers that ...
Processamento sol-gel de pós bioativos vítreos e cristalinos
(Universidade Federal de São Carlos, 2010-03-19)
In recent years, the sol-gel process has been increasingly used in the preparation of glasses and glass-ceramics with biomedical applications. Although the precursors used in this synthesis methodology are a very important ...
Análise da superfície de porcelanatos polidos por meio de microscopia de força atômica
(Universidade Federal de São Carlos, 2010-05-24)
The porcelain stoneware tile is a ceramic product that has presented a great increase on production, since it had excellent technical properties and raised aesthetic performance. To improve its aesthetic characteristics, ...
Tenacificação de polipropileno com elastômeros olefínicos para aplicações com requisitos de transparência ótica
(Universidade Federal de São Carlos, 2011-07-19)
The polypropylene is a versatile polymer but has lack of impact resistance. The polypropylene toughness is obtained thorugh the adition of elastomers that cause the loss of the blend stiffness. Many studies were performed ...
Evolução microestrutural e propriedades mecânicas decorrentes da solidificação das ligas Al-11%Si-xCu
(Universidade Federal de São Carlos, 2018-11-21)
Al-Si-Cu ternary alloys are highly used and recommended to produce joints of aluminum alloys using brazing process. Dissimilar joints between these alloys and stainless steels, carbon steels and low alloy steels can also ...
Estudo de microscopia eletrônica de transmissão in situ de nanoestrutura de óxidos mistos em altas temperaturas
(Universidade Federal de São Carlos, 2018-09-19)
This work addresses the characterization of the high temperature reactions between different nanoparticles oxides, CeO2-ZrO2 and CeO2-SnO2, by the direct observation of the phenomenon by in situ Transmission Electron ...