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Estudo sistemático da condutividade iônica de vitrocerâmicas NASICON: influência de tratamentos isotérmicos e novas substituições iônicas
(Universidade Federal de São Carlos, 2020-09-24)
The synthesis of solid electrolytes and the optimization of their ionic conductivity are topics of scientific interest since these components are essential for the current density and the half-life of the sodium batteries. ...
Cerâmicas refratárias macroporosas derivadas de espumas ultraestáveis estabilizadas com partículas cerâmicas
(Universidade Federal de São Carlos, 2020-11-03)
Innovation on materials for heat conservation in high-temperature industrial
processes is seen as an important strategy for Energy Efficiency. Fundamental
studies can support the development of these materials and the ...
Development of ionic conductive cellulose mat by solution blow spinning and laser-induced graphene from pineapple nanocellulose for use in flexible electronic devices
(Universidade Federal de São Carlos, 2021-02-26)
In the face of environmental issues and aiming at electronic devices of
rapid production at low cost, this doctoral thesis proposed two new and
innovative approaches to obtain substrates, dielectrics, and electrodes from ...
Conductive polymers derived heteroatom doped carbon catalysts for oxygen reduction reaction
(Universidade Federal de São Carlos, 2020-12-02)
Fuel cell is an electrochemical energy conversion system, that holds the
promise for clean and sustainable energy source. During the operation, this
device generates electricity direct from electrochemical reactions ...
Crack network monitoring upon curing and drying of high-alumina MgO-containing refractory castable via digital image correlation
(Universidade Federal de São Carlos, 2020-12-23)
MgO particles are added to high-alumina refractory castable formulations to
form spinel at high temperatures. However, these particles react with water forming brucite, which causes heterogeneous expansions in the material ...
Estudo de massas de porcelanato esmaltado contendo filito como fundente
(Universidade Federal de São Carlos, 2020-12-17)
The production of ceramic tiles is growing worldwide and Brazil is the third-largest producer in the world. Porcelain tiles represent a significant fraction of this production and the trend is for significant growth in the ...
Resistência ao escorregamento de revestimentos cerâmicos: avaliação por diferentes métodos, correlações com a topografia e o desgaste da superfície durante o uso
(Universidade Federal de São Carlos, 2020-09-17)
The development of ceramic floors for safe use in environments associated with slip and fall accident risks, which are even higher in the presence of water and contaminants, deals with the following difficulties: 1) although ...
Estudo termodinâmico, microrreológico e de propriedades mecânicas de blendas poliméricas ternárias com matriz de PCL
(Universidade Federal de São Carlos, 2020-08-31)
There is a demand for high quality materials that meet specific needs such as comfort, low cost and direct skin molding for making orthoses. This work aimed develop and identify some mechanical properties and the microrheology ...
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 ...