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Itens para a visualização no momento 141-150 of 175
Desenvolvimento do aço inoxidável supermartensítico resistente ao desgaste por conformação por spray para aplicação em "risers"
(Universidade Federal de São Carlos, 2013-04-24)
The oil exploitation and production in the pre-salt layers in safe, efficient and economically viable way depend on the development of materials that bear the severe conditions found in their applications during their whole ...
Crescimento super e subcrítico de trincas em vidros e vitrocerâmicos analisado via indentacão
(Universidade Federal de São Carlos, 2012-07-02)
In this dissertation we quantified properties that may better describe the mechanical behaviour of different glasses and glass-ceramics of the Na2O-CaO-SiO2-P2O5 system, based on the Biosilicate®chemical composition developed ...
Influência do processamento no comportamento mecânico de nanocompósitos de poliamida 6 com nanosílica
(Universidade Federal de São Carlos, 2015-10-06)
In this study nanocomposites of polyamide-6 (PA-6) reinforced with silica
nanoparticles (SiO2) were prepared in order to promote improved mechanical
properties for engineering applications. The nanoparticles’ surfaces ...
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 ...
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 ...
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, ...
Desenvolvimento de união de multimateriais através de rebitagem por injeção (Injection Clinching Joining)
(Universidade Federal de São Carlos, 2011-06-22)
Multimaterial structures are currently a technologically attractive field of research. The growing use of polymer composites replacing metals in structures aiming for weight and emission reduction is part of the motivation ...
Caracterização microestrutural e mecânica da liga de Al AA7050 reciclada por conformação por spray e extrusão
(Universidade Federal de São Carlos, 2013-01-22)
Aluminium alloys of the 7000 series are widely used in structural components in the aircraft industries due to their high strength and low density. However, a large amount of scraps is generated by the machining of the ...