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Process parameters optimization and microstructure evaluation on friction spot-welded aluminum/copper dissimilar joints
(Universidade Federal de São Carlos, 2016-11-17)
Dissimilar materials welding is a field of increasing interest for a wide range of industrial applications. Specifically, the welding of aluminum alloys with copper has potential applications in the heating, ventilation ...
Estudo da resistência à fadiga da liga Ti-6Al-4V com superfície modificada por tratamento químico
(Universidade Federal de São Carlos, 2016-03-22)
Chemical surface treatments (CST) in cementless and endosseous
implants are used to increase the implant-bone contact area, reducing the period
of osseointegration and favouring bonding ability between implants and ...
Indicadores do patenteamento de materiais armazenadores de hidrogênio voltados para o monitoramento tecnológico
(Universidade Federal de São Carlos, 2016-05-13)
Hydrogen is considered the energy carrier of the future, due to its high energy content and the possibility of its sustainable production. However, its broader implementation depends on overcoming of several technological ...
Controle da hidratação do óxido de magnésio: fundamentos físico-químicos e aplicação tecnológica
(Universidade Federal de São Carlos, 2016-08-24)
Magnesium oxide has been proposed as an alternative binder to calcium aluminate cement in refractory castables with reduced amount of CaO. The binding effect is generated by the MgO hydration, resulting in brucite [Mg(OH)2]. ...
Eletrólitos sólidos homogêneos e heterogêneos : obtenção e caracterização visando aplicação em células A combustível de temperatura intermediária
(Universidade Federal de São Carlos, 2016-03-04)
Emission reduction of greenhouse gases to the atmosphere in order to control global warming is an urgent need fully accepted by the international community. Ceramic materials play an important role in the possible solutions ...
Desenvolvimento de um ensaio mecânico não convencional para a análise da relaxação de tensões do politetrafluoretileno
(Universidade Federal de São Carlos, 2016-04-08)
The mechanical behavior of materials usually depends on room temperature
and loading rate. The identification of the time-dependent mechanical behavior
is a great difficulty for the industry in the application of new ...
Avaliação da resistência à fadiga e caracterização microestrutural de fios extrudados e forjados da liga AA7050 reciclada por conformação por spray
(Universidade Federal de São Carlos, 2016-12-19)
High strength 7XXX precipitation hardened aluminum alloys are widely
used in aircraft structural components. The machining process applied in the
fabrication of these components is a low efficiency ...
Obtenção e caracterização estrutural, microestrutural e elétrica do condutor protônico BaCe1-xYxO3-δ com e sem aditivo de sinterização
(Universidade Federal de São Carlos, 2016-12-19)
The study of solid electrolytes (SE) is important to the scientific and technological development of materials used in application related to clean energy generation, such as Solid Oxide Fuel Cells (SOFCs). Yttrium-doped ...
Resistência à fadiga de junta circunferencial de um tubo API 5L x 70 em contato com etanol
(Universidade Federal de São Carlos, 2016-09-19)
Circumferential field-welding joints of oil pipelines are susceptible to defects that may lead to failures when in operation. The type of product to be transported is an important factor in the evaluation of environment-induced ...
Estudo do processo de soldagem a ponto por fricção de juntas dissimilares entre ligas de alumínio e titânio
(Universidade Federal de São Carlos, 2016-12-09)
Multimaterial structures between aluminum and titanium alloys are a
technologically attractive field of research and their increasing use in the
transportation sector for weight and emission reduction is part of the ...