Microstructure and electrical properties of SiC dispersed molybdenum silicide composite

In this study, a core-shell composite powder with Mo as the shell material and β-SiC as the core material was produced via chemical vapour transport caused by the hydrogen reduction of Mo oxide. Using this core-shell composite powder, a Mo silicide composite with uniformly dispersed β-SiC was fabric...

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Bibliographic Details
Published inPowder metallurgy Vol. 59; no. 3; pp. 197 - 202
Main Authors Byun, J. M., Bang, S.-R., Kim, S. H., Kim, Y. D.
Format Journal Article
LanguageEnglish
Published London, England Taylor & Francis 26.05.2016
SAGE Publications
Subjects
Composite
Electrical resistance
Molybdenum silicide
Silicon carbide
Sintering
Electrical resistance
Silicon carbide
Molybdenum silicide
Composite
Sintering
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Summary:In this study, a core-shell composite powder with Mo as the shell material and β-SiC as the core material was produced via chemical vapour transport caused by the hydrogen reduction of Mo oxide. Using this core-shell composite powder, a Mo silicide composite with uniformly dispersed β-SiC was fabricated by pressureless sintering at 1400°C. The relative density of specimens sintered for 10 hours was 96.1% and the electrical resistivity was 4.68 × 10 −5  Ω m. It was concluded that a β-SiC dispersed molybdenum silicide composite with enhanced electrical resistivity was successfully fabricated at a relatively low sintering temperature using the core-shell composite powder.
ISSN:0032-5899
1743-2901
DOI:10.1080/00325899.2016.1142725