Hard Second Phase Materials
Mostrando 1-2 de 2 artigos, teses e dissertações.
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1. Efeito do tamanho do abrasivo no desgaste de metais. / The effect of abrasive size on the wear resistance of metallic materials.
In this research, the effect of abrasive size on the wear resistance of five metallic materials was investigated. Abrasive wear tests using a pin test on alumina paper were carried out using abrasive sizes between 16 µm and 192 µm. The wear surface of the specimens was examined by scanning electron microscopy for identifying the wear micromechanism and the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/06/2010
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2. Perovskitas contendo lantânio, ferro e cobalto - melhoramento de propriedades texturais via síntese por nanomoldagem e avaliação como catalisadores na redução de NO com CO
Mixed oxides with perovskite structure have high potential as catalysts in gas depollution processes and particularly in the abatement of nitrogen oxides (NOx). Such solids could be considered as a promising alternative for the replacement of noble metals based catalysts, whose use is predominant. Great flexibility of composition, easy synthesis, low cost an
Publicado em: 2008