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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 ...
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 ...
Comportamento mecânico em fadiga da liga de titânio beta metaestável Ti-5553
(Universidade Federal de São Carlos, 2016-10-14)
The microstructure of metastable beta Ti alloys is a decisive factor that
governs their properties and, therefore, the assessment of the relation between
the microstructure and the fatigue response means an advance in ...
Abordagem termodinâmica do transporte iônico e da relaxação estrutural em vidros fosfatos de prata
(Universidade Federal de São Carlos, 2016-09-12)
Ionic conductivity in glasses was first discovered and demonstrated by
Warburg in 1884, but although it has been studied for over a century, the
mechanisms underlying ionic conduction in glasses are not yet entirely ...
Avaliação da cinética de degradação abiótica do polietileno de alta densidade, na presença e ausência de aditivo pró-degradante e estabilizantes
(Universidade Federal de São Carlos, 2016-11-28)
The convenience of single-use packaging of high density polyethylene (HDPE) led to the need to convert them into biodegradable materials in less time to minimize the environmental problems caused by disposal. An alternative ...
Deformação piroplástica em porcelanatos
(Universidade Federal de São Carlos, 2016-09-09)
In recent years porcelain stoneware tiles showed the highest growth in
production and consumption in ceramic industry sector. To achieve low
porosity, which ensures the high performance of the product, is required ...
Spray forming of wear and corrosion resistant bimetallic pipes : from the alloy design to the semi- industrial process
(Universidade Federal de São Carlos, 2016-02-29)
The oil exploitation and production at the pre-salt fields in a safety and efficient
way depends on the development of materials that withstand the severe work
conditions found in these fields. For instance, pipes, such ...
Transformações de fase termoelásticas em ligas com memória de forma a base de Cu-Al-Ni
(Universidade Federal de São Carlos, 2016-02-26)
Shape memory alloys (SMA) have some exceptional properties such as the
shape memory effect and the superelasticity. Both are associated with a
martensitic/austenitic phase transformation. Alloys of the system Cu-Al-Ni, ...