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Efeitos das condições de queima e densidade aparente sobre a sobrequeima em porcelanatos
(Universidade Federal de São Carlos, 2015-08-05)
The phenomenon of overfiring manifests in porcelain tiles and other
products with high degree of vitrification, as a consequence of the expansion of
gases trapped in closed pores, in the final stages of sintering. When ...
Condutividade iônica e eletrônica em vidros 0,50[xAg2O(1-x)V2O5].0,50P2O5
(Universidade Federal de São Carlos, 2016-10-27)
Mixed conductive glassy materials have in their composition, in addition
to a glass former, a metallic element in two oxidation states and ions with high
mobility, generally alkaline or Ag+ ions. These materials can be ...
Desenvolvimento de vitrocerâmicas com estrutura NASICON condutoras por íon sódio da família NaGe2(PO4)3
(Universidade Federal de São Carlos, 2015-11-30)
Sodium batteries have a promising future owing to the low cost and abundance of sodium in nature. This growing interest has led to the quest for materials to optimize and improve the operation of these devices. Among the ...
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 ...
Eletrofiação de nanofibras de KBiFe2O5 com potencial aplicação em células solares
(Universidade Federal de São Carlos, 2020-07-15)
Today, ferroelectric semiconductors with perovskite type structure are widely studied due to the possibility of obtaining voltages higher than their band gap and to their contribution to the charge carriers’ separation due ...
Preparation and characterization of bionanocomposites based on protein and cellulose nanocrystals by continuous casting
(Universidade Federal de São Carlos, 2020-12-11)
This Ph.D. thesis covers the production and characterization of gelatin-cellulose nanocrystals (CNCs) bionanocomposite films intended for multifunctional food packaging. The up-scalability of the gelatin/CNCs films was ...
Avaliação dos modelos numéricos para a simulação da secagem de concretos refratários
(Universidade Federal de São Carlos, 2021-02-25)
The drying of hydraulic bonded monolithic refractories is the slowest stage of their application process. Problems related to the control of such a procedure result in cracks, spalling and even, in extreme cases, explosions ...
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 ...
Dispersão da lignina Kraft em PBSA e suas interações: efeito da concentração e condições de processamento
(Universidade Federal de São Carlos, 2020-10-29)
Serious environmental issues have been caused by the massive consumption of plastic products. One of many strategies to reduce the environmental impacts is the development of bio-based and biodegradable polymeric materials. ...