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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

纳米Ti(C,N)增强Ti(C,N)基金属陶瓷的制备研究

徐智谋; 易新建; 胡茂中; 徐尚志   

  1. 1. 华中科技大学光电子工程系, 武汉 430074; 2. 株洲硬质合金集团有限公司; 株洲 412009
  • 收稿日期:2002-10-17 修回日期:2003-03-10 出版日期:2003-11-20 网络出版日期:2003-11-20

Preparation of Nano-TI(C,N) Reinforced Ti(C,N)-based Cermets

XU Zhi-Mou; YI Xin-Jian; HU Mao-Zhong; XU Shang-Zhi   

  1. 1.Department of Optoelectronics Engineering; Huazhong University of Science and Technology; Wuhan 430074; China; 2.Zhuzhou Cemented Carbide Works; Zhuzhou 412009; China
  • Received:2002-10-17 Revised:2003-03-10 Published:2003-11-20 Online:2003-11-20

PDF (PC)

1390

被引次数

19

摘要： 采用Ti(C,N)纳米粉末制备Ti(C,N)基金属陶瓷.研究了烧结温度、保温时间和升温速度等工艺参数对含10wt％纳米粉末的Ti(C,N)基金属陶瓷性能的影响,得到优化烧结工艺为1450℃,保温75min,升温速度3℃/min.用优化工艺制备的Ti(C,N)基金属陶瓷抗弯强度提高了约36.7％,增强机理主要表现为细晶强化、弥散强化和固溶强化.

关键词: 纳米粉末, Ti（C, N）基金属陶瓷, 性能, 增强机理

Abstract: Ti(C,N)-based cermets were produced by using nanopowders of Ti(C,N). The effects of sintering temperature,
holding time and rate of raising temperature on the properties of Ti(C,N)-based cermets containing 10wt% nanopowders of Ti(C,N) were studied. An
optimum process of preparating cermets was obtained. It was the sintering temperature of 1450℃, holding time of 75min and rate
of raising temperature of 3℃/min. The tensile strength was improved about 36.7% by using the process. The reinforcing mechanisms were
considered chiefly to be grains refining, distributing and solution.

Key words: nanopowders, Ti（C, N）-based cermets, properties, reinforcing mechanisms

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