Article ID Journal Published Year Pages File Type
1623178 Journal of Alloys and Compounds 2008 12 Pages PDF
Abstract

Dense molybdenum disilicide with a nano-organized microstructure was synthesized by mechanical activation, by producing nanostructured agglomerates of a 1:2 mixture of Mo and Si, followed by the synthesis/consolidation in one step using SPS technology. In order to synthesize a dense molybdenum disilicide with a perfectly controlled microstructure, an investigation of the influence of Spark Plasma Sintering processing parameters (temperature, heating rate, mechanical pressure and holding time) on the chemical composition and the microstructure characteristics has been performed. The present work shows also that the so-obtained materials present better oxidation resistance in comparison to a dense microstructured MoSi2, due to the silica scale formation under high-temperature oxidizing atmosphere. The most interesting results are obtained at “low” temperature (673–873 K).

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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