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A importância da caracterização do módulo de elasticidade e do amortecimento de refratários por técnica dinâmica
(Universidade Federal de São Carlos, 2013-03-08)
This dissertation tries to understand the mechanisms involving damping phenomenon in ceramic refractory materials, using a dynamic technique. Damping proves to be an interesting parameter to analyze thermal shock damage ...
Estudos qualitativos das transformações termodinâmicas ocorridas durante o processo pirometalúrgico de recuperação de Pb a partir de PbSO4
(Universidade Federal de São Carlos, 2013-08-01)
This study was carried out in order to gain a qualitative understanding of one of the fundamental processes of pyrometallurgical recovery of Pbfrom the inorganic scraps of lead-acid batteries by the reduction of PbSO4to ...
Microestrutura e propriedades mecânicas de vitrocerâmicos do sistema Li2O – CaO – SiO2
(Universidade Federal de São Carlos, 2013-03-12)
An interesting characteristic of the Li2O-CaO-SiO2 glass-forming system is the possibility of obtaining certain crystalline phases and morphologies that may lead to tough glass-ceramics. However, very few published works ...
Concretos refratários espinelizados : projeto da microestrutura e análise da corrosão
(Universidade Federal de São Carlos, 2013-10-04)
The addition of magnesium-aluminate spinel (MgAl2O4) in refractories for secondary steel refining has been considered for years one of the more feasible alternatives to reduce the corrosive wear imposed by the aggressive ...
Soldagem por fricção e mistura (FSW) no aço inoxidável austenítico AISI 304
(Universidade Federal de São Carlos, 2013-04-09)
Stainless steels are an important class of engineering materials with attractive properties such as high mechanical and corrosion resistance and thereby widely used in a variety of industries and environments due to its ...
Utilização de alumínio recoberto por aspersão térmica em tubulação de condensadores evaporativos
(Universidade Federal de São Carlos, 2013-12-16)
In evaporative condenser production, galvanized steel has become the most suitable material for piping system production, since it has high corrosion resistance and relative low commercial value. With proper surface ...
Síntese por redução carbotérmica assistida por micro-ondas de carbeto de zircônio
(Universidade Federal de São Carlos, 2013-09-12)
One of the major motivations for the development of new synthesis routes is a continuing need for fast and energy-efficient methods that allow obtaining materials with differentiated technological characteristics and ...
Obtenção e caracterização de cimentos sulfobelíticos sintetizados a partir do resíduo de bauxita
(Universidade Federal de São Carlos, 2013-03-18)
The modern society has an elevated and increasingly pattern of consumption, demanding a high industrial productivity and generating enormous residue volumes, resulting in a conduct that is becoming each time more unsustainable. ...
Parâmetros térmicos de solidificação, microestrutura e resistência mecânica de ligas eutéticas Sn-0,7%Cu-(xNi)
(Universidade Federal de São Carlos, 2013-07-29)
Sn-Pb traditional solder alloys were overly utilize in electronic devices industry, since their properties and features use were adequate and well known. In the last years many restrictions and directives were and have ...
Avaliação da compatibilidade entre Y-TZP e BICUVOX para obtenção de compósitos condutores de íons de oxigênio
(Universidade Federal de São Carlos, 2013-09-27)
The BICUVOX is a potential candidate for devices that require materials with high ionic conductivity at intermediate temperatures. However, deficiencies such as low mechanical resistance and thermodynamic stability in ...