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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 ...
Durabilidade mecânica de compósitos de polipropileno com reforço híbrido de fibra de coco e talco
(Universidade Federal de São Carlos, 2012-08-13)
The use of natural fibers, as possible alternative reinforcement for synthetic fibers such as glass fibers, in polymer composites meets the requirement for development of new materials with environmentally sustainable ...
Análise das propriedades mecânicas de juntas sobrepostas na liga Al 6181-T4 soldadas por fricção por ponto
(Universidade Federal de São Carlos, 2011-03-21)
Lightweight alloys, originally developed for aeronautic applications, have also shown increasing use in the automotive sector, aiming fuel consumption and reduction of production costs. In addition to this there is the ...
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 ...
Obtenção e caracterização de nanocompósitos de poli(cloreto de vinila): plastisol com argila
(Universidade Federal de São Carlos, 2011-03-03)
This project aims to study the effect of adding nanoparticles in the plastisol of poly(vinyl chloride) microsuspension. The influence of two different types of nanoclay, sodium montmorillonite and organophilic montmorillonite ...
Análise da influência das condições de mistura por extrusão sobre o comportamento de blendas poliméricas PBT/ABS
(Universidade Federal de São Carlos, 2011-06-09)
At the present work several properties of PBT/ABS blends processed with different extrusion conditions as feed rate, screw speed and profile and die geometry were studied in order to verify how these parameters affect their ...
Estudo do comportamento termomecânico e análise da formação de orientações preferenciais de aços com 6,5% Si conformados por spray
(Universidade Federal de São Carlos, 2012-07-29)
Termomechanical behavior of spray formed 6.5% Si-Carbon steels were analyzed by physical simulation, through torsion tests, and the evolution of preferential orientation were analyzed in order to electrical devices. Low ...
Efeito da adição de boro na microestrutura e na resistência ao desgaste do aço inoxidável AISI 430 conformado por spray
(Universidade Federal de São Carlos, 2014-08-04)
The contact between drill pipes during oil well exploitations induces a severe wear process that might cause well bore pipe wall rupture, fluids leakage, environmental impacts, and possibly fatal accidents. The problem is ...
Influência de variáveis de sinterização na microestrutura e propriedades mecânicas de peças de PTFE moldadas por prensagem isostática
(Universidade Federal de São Carlos, 2014-02-03)
Polytetrafluorethylene (PTFE) is used in a wide range of critical applications because of its outstanding chemical and thermal resistance, low surface energy and special tribological properties. Because of its ultra high ...
Produção por aspersão térmica de revestimentos amorfos resistentes à corrosão e ao desgaste utilizando a liga Fe60Cr8Nb8B24
(Universidade Federal de São Carlos, 2014-12-18)
Metallic coatings are generally designed to confer high wear and corrosion resistance to the substrate to be coated. These properties are essential to make structures suitable to resist to aggressive environment and operating ...