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Nano céria dopada com gadolínia: condutividade elétrica e correlação com a micro e nanoestrutura
(Universidade Federal de São Carlos, 2013-04-11)
Solid Oxide Fuel Cells (SOFCs) are clean and efficient energy conversion devices, considered as one of the key enabling technologies for future hydrogen economy and for stationary power generation. However novel materials ...
Desenvolvimento de ligas amorfas e nanocristalinas do sistema Fe-Cr-Ni-B e suas propriedades de corrosão
(Universidade Federal de São Carlos, 2019-02-14)
Fe-Cr-Ni-B system alloys with partially amorphous structures can ensure a very attractive combination of mechanical and electrochemical properties, far superior to conventional materials. It can be used, for example, in ...
Comportamento em fadiga da liga Ti-6Al-4V para uso biomédico com superfícies modificadas
(Universidade Federal de São Carlos, 2011-09-09)
Surface modification in implants is used, basically, to improve osseointegration, which is defined as the intimate contact between bone and implant material, without a soft tissue layer in the bone/implant interface. ...
Desenvolvimento e avaliação de dispositivo com fluxos rotacionais para a formação de nanofibras poliméricas pelo processo de fiação por sopro
(Universidade Federal de São Carlos, 2020-09-10)
The spinning of polymeric fibers, with micrometric and nanometric dimensions, has many technical advantages and cost benefits. The techniques known as Electrospinning and Solution Blow Spinning (SBS) have been extensively ...
Nucleação e crescimento de cristais, difusão e relaxação estrutural em vidros 2Na2O.CaO.3SiO2 e 5BaO.8SiO2
(Universidade Federal de São Carlos, 2021-06-25)
Despite intensive research regarding glass crystallization, there are still flaws in the theories and especially in their application. Aiming to verify the applicability of the classical nucleation theory (CNT) and the ...
Vitrocerâmica altamente bioativa, de boa resistência mecânica e baixo módulo elástico
(Universidade Federal de São Carlos, 2019-09-03)
Bioactive glass and glass-ceramics have the property of binding directly to living tissue. However, from mechanical performance, these materials have some disadvantages such as low fracture resistance. Some properties ...
Avaliação da anomalia da teoria de nucleação clássica em vidros silicatos
(Universidade Federal de São Carlos, 2021-07-13)
Under some conditions, the Classical Nucleation Theory (CNT) provides a good description of the temperature dependence of the experimental homogeneous nucleation rates in supercooled liquids. Allegedly, however, it strongly ...
Coatings cerâmicos de alta emissividade como soluções energéticas para fornos industriais
(Universidade Federal de São Carlos, 2021-08-30)
Aiming at alternatives to reduce the impacts from the excessive consumption of non-renewable energy sources by the industrial sector, the present work highlights an important technological aspect with the development of ...
Método de controle de trajetória de atuadores ipmc baseados em nafion® utilizando técnica de visão de máquina em ambiente com umidade relativa controlada
(Universidade Federal de São Carlos, 2021-08-13)
Ionomeric polymer-metal composites (IPMC) consist of an electroactive polymeric matrix coated on both sides with a noble metal. When applying an electrical potential difference, the polymeric membrane changes its thickness, ...
Perovskitas óxidas para aplicação eletroquímica e fotovoltaica
(Universidade Federal de São Carlos, 2019-07-26)
This work aimed to investigate the production of lanthanum perovskites LaCoO3 and LaFeO3 in the form of thin films and to evaluate their use as catalysts for water splitting as well as absorbers for photovoltaic devices. ...