期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 99, 期 4, 页码 1147-1150出版社
WILEY-BLACKWELL
DOI: 10.1111/jace.14163
关键词
-
资金
- Fundamental Research Funds for the Central Universities [2015XKZD01]
- National Nature Science Foundation of China [51574241]
MoB and SiC particulate reinforced MoSi2 matrix composites were synthesized in situ from Mo, Si, and B4C powder mixtures by self-propagating high-temperature synthesis (SHS). The SHS MoSi2-MoB-SiC products were vacuum hot-pressed (HPed) at 1400 degrees C for 90 min to fabricate high-density (> 97.5% relative density) bulk composites. Microstructure refinement and improvements in the Vickers hardness and fracture toughness of the HPed composites were observed with increasing B4C content in the reaction mixture. The HPed composite of composition MoSi2-0.4MoB-0.1SiC exhibited grain size of 1-5 m, Vickers hardness of 12.5 GPa, bending strength of 537 MPa, and fracture toughness of 3.8 MPa.m(1/2). These excellent mechanical properties indicate that MoB and SiC particulate reinforced MoSi2 composites could be promising candidates for structural applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据