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Combustion synthesis of MoSi{sub 2} - SiC oxidation resistant coatings

Conference ·
OSTI ID:96592
; ;  [1]
  1. Colorado School of Mines, Golden, CO (United States); and others
Several high-temperature, oxidation resistant materials were investigated as possible coatings for molybdenum furnace elements. Molybdenum disilicide (MoSi{sub 2}) composites are potential candidates for these high temperature coating applications. Composite materials were selected based on several factors, including oxidation resistance, coefficients of thermal expansion, compatibility at the coating/substrate interface, thermodynamic stability over a large temperature range and adhesion. The synthesis of dense MoSi{sub 2}-SiC composites through simultaneous combustion and hot-pressing is currently being investigated. Functionally graded materials (FGM`s) are being studied to overcome some of the property differences between a coating and a substrate. Oxidation testing was used to determine the protective qualities of the FGM`s.
OSTI ID:
96592
Report Number(s):
CONF-940416--
Country of Publication:
United States
Language:
English

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