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Now showing items 11-20 of 28
Avaliação comparativa de desempenho ambiental de duas caixas de carga de semi-reboque bitrem graneleiro: compósito natural versus compósito sintético
(2014-05-19)
This work presents a comparative evaluation of the environmental performance of two materials: a wood panel and a three layers synthetic panel, both used in the production of the load box of semi-trailer for grains ...
Análise de superfícies fresadas por diferentes estratégias em aço AISI H13 endurecido
(2014-05-20)
In the final milling process of free form surfaces, commonly employed in the production of molds and dies, the knowledge of the cutting conditions and a strategy for choosing adequate processing routes in the milling of ...
Processamento de compósitos de poli (tereftalato de etileno) reciclado reforçado com fibras de vidro
(2014-05-15)
In this work, flake and post-condensed PET composites of different glass fiber contents (0, 20, 30 and 40%) were prepared. Tow kinds of fibers were employed: one fiber having an amino silane-based surface treatment and ...
Preparação e caracterização de membranas poliméricas de poli(fluoreto de vinilideno) para uso em nanofiltração
(2014-06-03)
The search for increasingly efficient technologies in water and effluent treatment made the development of membranes take on an important role in separation processes. The nanofiltration is presented as a promising technology ...
Reação de desinserção em SbxCoSb3-x
(2014-06-03)
The compound SbxCoSb3-x was produced at high pressures and high temperatures in a self-insertion reaction from the binary skutterudite CoSb3. The self-insertion reaction is characterized by the collapse of Sb atoms to the ...
Estudo da influência do lubrificante sólido MoS2 nas propriedades de revestimentos protetores de TiN
(2014-06-03)
In this study we investigated the protective coating of titanium nitride using incorporation of molybdenum disulfide as a solid lubricant, seeking application in parts and cutting tools in the metal working industry. This ...
Avaliação de diferentes potenciais interatômicos no cálculo do tensor de elasticidade do tungstato de zircônio
(2014-05-28)
Zirconium tungstate (ZrW2O8) is a material that exhibits negative thermal expansion (NTE), over a wide temperature range (0.3 at 1050 K). Although thoroughly studied, controversies still remain concerning the microscopic ...
Síntese e caracterização de revestimentos protetores de ZrN/TiN sobre o biomaterial Nitinol obtidos por tratamento duplex.
(2014-06-05)
The present work aims to study about duplex treatment on the biomaterial Nitinol (NiTi). This treatment consists in titanium nitride (TiN) formed by plasma nitration, followed by zirconium nitride (ZrN) thin film deposition ...
Influência da temperatura de sinterização nas propriedades mecânicas de molas de alumina injetadas em baixa pressão
(2014-06-05)
In this work, ceramic coil springs was prepared by low-pressure injection molding using alumina submicrometer-sized powder. The powder are mixed with organic binders in the Pelstman machine tank for several hours resulting ...