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WC-Co硬质合金基体上高附着力金刚石薄膜的制备

杨仕娥, 鲁占灵, 樊志琴, 姚宁, 张兵临   

  1. 郑州大学材料物理教育部重点实验室, 郑州 450052
  • 收稿日期:2003-12-29 修回日期:2004-04-05 出版日期:2005-01-20 网络出版日期:2005-01-20

Highly Adherent Diamond Film Deposited onto WC-Co Cemented Carbide Substrate

YANG Shi-E, LU Zhan-Ling, FAN Zhi-Qin, YAO Ning, ZHANG Bing-Lin   

  1. Ministry of Education Key Laboratory of Material Physics, Zhengzhou University, Zhengzhou 450052, China
  • Received:2003-12-29 Revised:2004-04-05 Published:2005-01-20 Online:2005-01-20

摘要: 采用微波等离子体化学气相沉积(CVD)法在WC-Co硬质合金基体上制备金刚石膜, 研究了TiNx中间层的引入对金刚石薄膜质量及其附着性能的影响. 结果表明, 在酸浸蚀脱钴处理的基础上, 通过预沉积氮含量呈梯度变化的TiNx中间过渡层, 可在硬质合金基体上制备出高质量的金刚石薄膜; 压痕法测试其临界载荷达1000N.

关键词: 金刚石薄膜, 中间层, 形核密度, 附着力

Abstract: Diamond films were deposited onto WC-Co cemented carbide substrate by using microwave plasma chemical vapor deposition(CVD). The effects of TiNx interlayer introduced on
the diamond film quality and its adhesion to the substrate were investigated. The results show that by pre-depositing TiNx interlayer in which nitrogen
concentration changes gradually, the diamond film on the cemented carbide substrate etched by acid solution has very good quality; and its critical
load measured by indentation test, is as high as 1000N.

Key words: diamond film, interlayer, nucleation density, adhesion

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