Materials Science and Engineering, A278 ( 2000), 46-53
Language: English

Calculated C-MoSi2 and B-Mo5Si3 pseudo-binary phase diagrams for the use in advanced materials processing

Fan X.

National Institute for Research in Inorganic Materials, Namiki 1-1, Tsukuba-shi, Ibaraki 305-0044, Japan

Hack K. Ishigaki T.

GTT-Technologies, Kaiserstraße 100, 52134 Herzogenrath 3, Germany

Keywords: chemsage thermodynamic data thermodynamic modeling

 

Abstract

The phase diagrams were calculated for the pseudo-binary systems, C-MoSi2 and B-Mo5Si3, in which the composites have significant potentials to function in high-temperature environments. The calculations have been executed with the aid of the software ChemSage and thermodynamic data derived based on the solution database of Scientific Group Thermodata Europe (SGTE). The constructed phase diagrams are discussed with respect to some published experimental information for the fabrication of molybdenum silicide materials and provide a guideline for the experimental work of advanced materials processing, such as second-phase reinforcement for MoSi2 and other low silicides in the Mo-Si system.