王玉金,张太全,赵彦伟,周玉

• 1:哈尔滨工业大学特种陶瓷研究所

摘要(Abstract)：

为了改善复合材料的力学性能,对2200℃热压烧结后的20vol%ZrCP/W复合材料进行了高温退火处理,退火工艺为2300℃×60min。结果表明,高温退火后,复合材料几乎达到了完全致密化,W2C相的生成量增多,复合材料中的缺陷减少,ZrC颗粒和W的晶粒尺寸增大。复合材料的弹性模量和维氏硬度变化很小,断裂韧性略有增大,而抗弯强度则急剧下降,这可能与晶粒尺寸增大和杂质元素在晶界的偏聚有关。

关键词(KeyWords)： ZrCP/W复合材料;高温退火;组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50101003,50502012);; 哈尔滨工业大学校基金(HIT.2003.07)

作者(Author): 王玉金,张太全,赵彦伟,周玉

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