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无机材料学报

无机材料学报

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氧化铝复合陶瓷烧结工艺研究与力学性能改善

郭瑞松; 崔一强+; 杨正方; 袁启明; 陈玉如   

  1. 天津大学材料科学与工程系; 天津大学300072; +河北化工学校; 石家庄050031
  • 收稿日期:1997-03-07 修回日期:1997-04-04 出版日期:1998-04-20 网络出版日期:1998-04-20

Sintering and Properties Improvement of Alumina Composites

GUO Rut-Song; CUI Yi-Qiang+; YANG Zheng-Fang; YUAN Qi-Ming; CENG Yu-Ru   

  1. Department of Materials Science and Engineering; Tianjin Universitg Tianjin 300072 China; +Chemieal Engineering School of Hebei Shijiazhuang 050051 China
  • Received:1997-03-07 Revised:1997-04-04 Published:1998-04-20 Online:1998-04-20

PDF (PC)

803

被引次数

15

摘要： 研究了反应结合Al2O3－ZrO2－SiC复合陶瓷的烧结工艺与力学性能改善途径，对快速烧结与Ar气氛常压烧结工艺及材料力学性能进行对比，并分析了微观结构．实验结果表明，快速烧结是抑制晶粒生长、获得均匀、细微、致密结构的有效途径，材料的力学性能也达到了较好水平，但其工艺难度大，而Ar气氛常压烧结工艺简便易行，也可获得相当水平的力学性能．经热等静压使材料充分致密化，消除缺陷，力学性能大幅度提高．

关键词: 氧化铝, 复合陶瓷, 反应结合, 烧结, 力学性能

Abstract: Al2O3-Zro2-SiC composites were prepared by RBAO technology and then fast-fired or conventionally-sintered. The materials obtained by both processes proved to have dense, fine-grained andhomogeneous microstructure, which gave rise to good mechanical properties. Fully dense and fiawfree materials were obtained after HIPing, therefore their properties were significantly improved.

Key words: alumina, composite, fast firing, mechanical properties

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