热压烧结工艺对超韧Al2O3-TiC-Co复合陶瓷性能的影响Effect of hot pressed sintering processing on properties of ultra-toughen Al2O3-TiC-Co cermet
朱流,郦剑,李军,姚继鹏
摘要(Abstract)：
热压烧结化学镀法获得的Al2O3-Co+TiC-Co复合粉体制备超韧Al2O3-TiC-Co复合陶瓷。探讨了烧结温度、烧结气氛和分级保温时间对复合陶瓷微观形貌和力学性能的影响。结果表明,烧结温度为1550℃、真空保护并在750℃和1200℃各保温10 min制备的复合陶瓷力学性能最佳。采用最佳烧结工艺制备的Al2O3-TiC-8%Co复合陶瓷的平均抗弯强度和断裂韧性分别达到782MPa和8.0 MPa.m1/2。
关键词(KeyWords)： Al2O3-TiC-Co;复合陶瓷;热压烧结,力学性能
基金项目(Foundation): 国家高技术研究发展计划(863计划)资助项目(2002AA332100)
作者(Author): 朱流,郦剑,李军,姚继鹏
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