Article ID Journal Published Year Pages File Type
1604433 International Journal of Refractory Metals and Hard Materials 2009 4 Pages PDF
Abstract
SiC reinforced (Mo, W)Si2 composites have been successfully prepared by pressureless sintering from “chemical oven” combustion synthesized powder. After sintering, a uniform dispersion of SiC particles and whiskers is obtained in the (Mo, W)Si2 matrix. The Vickers hardness, flexural strength and fracture toughness of the SiC/(Mo, W)Si2 composites are up to 11.8 GPa, 253.3 MPa and 9.43 MPa m1/2, increased by 33.5%, 86.9% and 124.5% as compared to MoSi2 matrix by same process, respectively. The mechanism of mechanical properties improvement was also proposed. At last, the cyclic oxidation behavior of this composite has been discussed.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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