Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1604433 | International Journal of Refractory Metals and Hard Materials | 2009 | 4 Pages |
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.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Jianguang Xu, Yan Leng, Huiqiang Li, Houan Zhang,