Reactive Hot Pressing of ZrC–SiC Ceramics at Low Temperature
Reactive Hot Pressing of ZrC–SiC Ceramics at Low Temperature
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DOI：
10.1111/jace.12090
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发表时间：
2013
影响因子：
3.9
通讯作者：
Xin‐Gang Wang;Guo‐Jun Zhang;Jiaxiang Xue;Yun Tang;Xiao Huang;Chang-Ming Xu;Pei-ling Wang
中科院分区：
文献类型：
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作者：
Xin‐Gang Wang;Guo‐Jun Zhang;Jiaxiang Xue;Yun Tang;Xiao Huang;Chang-Ming Xu;Pei-ling Wang
Composites of ZrC–SiC with relative densities in excess of 98% were prepared by reactive hot pressing of ZrC and Si at temperature as low as 1600°C. The reaction between ZrC and Si resulted in the formation of ZrC1−x, SiC, and ZrSi. Low-temperature densification of ZrC−SiC ceramics is attributed to the formed nonstoichiometric ZrC1−x and Zr–Si liquid phase. Adding 5 wt% Si to ZrC, the three-point bending strength of formed ZrC0.8–13.4 vol%SiC ceramics reached 819 ± 102 MPa with hardness and toughness being 20.5 GPa and 3.3 MPa·m1/2, respectively.
