Reactive Processing, Microstructure, and Mechanical Properties of Al2O3-MoSi2 Composites
Composites of Al2O3 and Mo intermetallic compounds, specifically MoSi2, Mo(Si,Al)2, and Mo3Al8, were fabricated from Mo-Al-aluminosilicate powder mixtures by reactive hot pressing. The ceramic-to-intermetallic ratio and the composition of the intermetallic phase were varied systematically by controlling the molar ratio of the reactant powders or by using different aluminosilicate precursors. Composite microstructures were characterized by scanning electron microscopy. Mechanical behavior was evaluated by determining 4-point bend strength, Young's modulus, hardness, and coefficient of thermal expansion.
W. Fahrenholtz et al., "Reactive Processing, Microstructure, and Mechanical Properties of Al2O3-MoSi2 Composites," Ceramic Engineering and Science Proceedings, vol. 19, no. 3, pp. 373-380, American Ceramic Society (ACS), Jan 1998.
The definitive version is available at http://dx.doi.org/10.1002/9780470294482.ch41
22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A. Part 1 (of 2) (1998: Jan. 20-24, Cocoa Beach, FL)
Materials Science and Engineering
Keywords and Phrases
Alumina; Bending strength; Crystal microstructure; Elastic moduli; Hardness; Hot pressing; Intermetallics; Molybdenum alloys; Phase composition; Powders; Scanning electron microscopy; Thermal expansion; Aluminosilicate; Molybdenum aluminide; Molybdenum silicide; Thermal expansion coefficient
International Standard Serial Number (ISSN)
Article - Conference proceedings
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