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Now showing items 21-30 of 78
Desenvolvimento e caracterização de compósitos sanduíche para isolamento térmico
(2014-05-29)
A sandwich panel consists essentially of two face sheets and may even have metal reinforcements and a core formed, usually by a cellular polymer. The faces of this type of panel may be joined by a structural adhesive or ...
Estudo de aplicação de areia descartada de fundição como material alternativo para camada de cobertura de aterro de resíduos
(2014-05-29)
Advances in environmental issues related to materials science have been done due to the possibility of the use of alternative materials replacing conventional ones with similar characteristics. The Brazilian Foundry has ...
Propriedades estruturais e mecânicas do carbeto de vanádio obtido por magnetron sputtering reativo
(2014-05-22)
The use of hard coatings has many applications in the metal-mechanic industry due to the improvement of surface properties such as high hardness and wear and corrosion resistance. One of the most important techniques for ...
Obtenção e caracterização de artefatos produzidos com resíduos elastoméricos vulcanizados
(2014-05-22)
The aim of this study was to incorporate styrene-butadiene rubber (SBR) industrial scraps into a base formulation of identical composition used in the fabrication process of extruded profiles. Technical and environmental ...
Transporte atômico e reação química em nanoestruturas TiN e TiN/Ti em aço nitretado a plasma
(2014-05-28)
The use of cutting tools in progressively more severe conditions in the metal-mechanics industry and the requirement to increase tool life against friction, wear and high temperature corrosion made of surface treatments ...
Amplificação da dureza de estruturas de multicamadas de filmes finos CrN/Si3N4
(2014-06-23)
Surface engineering has been searching to attend the industrial demand for tools, parts
and other components with larger lifecycles and higher wear resistance, by means of
protective coatings whose mechanical, physical-chemical ...
Nitretação a plasma de zircônia parcialmente estabilizada
(2014-05-23)
High temperature plasma nitriding of yttria-partially stabilized zirconia in atmospheric pressure microwave plasma was investigated. The morphological, mechanical and physico-chemical characteristics of the resulting ...
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 ...
Obtenção e caracterização de compósitos preparados com poliestireno expandido reciclado e pó de madeira
(2014-05-29)
The present work aims to analyze the mechanical, thermal, dynamicalmechanical thermal properties and morphology of composites based on recycled polystyrene and wood flour. Composites with different types and levels of ...