无机材料学报

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致密TiC-Al2O3复合陶瓷材料的自蔓延高温合成

张卫方; 韩杰才; 张幸红; 赫晓东; 杜善义   

  1. 哈尔滨工业大学复合材料研究所; 哈尔滨 150001
  • 收稿日期:1998-08-10 修回日期:1998-09-10 出版日期:1999-06-20 网络出版日期:1999-06-20

Dense TiC-A12O3 Composites Fabricated by SHS

ZHANG Wei-Fang; HAN Jie-Cai; ZHANG Xing-Hong; HE Xiao-Dong; DU Shan-Yi   

  1. Center for Composite Material of Harbin Institute of Technology Harbin 150001 China
  • Received:1998-08-10 Revised:1998-09-10 Published:1999-06-20 Online:1999-06-20

摘要: 本文通过自蔓延高温合成结合准热等静压法(SHS/PHIP)制备出了致密度为97.2%的TiC-A12O3复合陶瓷.分析了合成产物的结构、组织和性能.结果表明,复合陶瓷由近乎球形的TiC颗粒和不规则的Al2O3相组成,TiC与Al2O3之间的界面光滑.TiC-Al2O3复合陶瓷的抗弯强度和硬度分别为510MPa和17.8GPa。

关键词: 自蔓延高温合成, 准热等静压, TiC-Al2O3, 复合陶瓷

Abstract: Dense TiC-Al2O3 composites were produced by self-propergating high temperature synthsis and pseudo-hot isostatic pressing(SHS/PHIP). The composition, microstructure and properties of the product were analyzed. The results show that the product consists of quasi-spherical TiC and irregular Al2O3. The interfacial bonding between TiC and Al2O3 is smooth. Transverse rupture strength and hardness of TiC-Al2O3 composites are aproximately 510MPa and 17.8GPa.

Key words: SHS, PHIP, TiC-Al2O3, composites

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