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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

ZrO2-Ti系材料的热力学分析与显微结构研究

滕立东1,2; 王福明1; 李文超1   

  1. 1. 北京科技大学理化系, 北京 100083; 2. 山东轻工业学院材料系, 济南 250100
  • 收稿日期:1999-11-15 修回日期:1999-12-06 出版日期:2000-08-20 网络出版日期:2000-08-20

Thermodynamic Analysis and Microstructure Study of ZrO2-Ti Metal-Ceramic Composites

TENG Li-Dong1,2; WANG Fu-Ming1; LI Wen-Chao 1   

  1. 1.University of Science and Technology Beijing; Beijing 100083; China; 2.Shandong Institute of Light Industry; Jinan 250100; China
  • Received:1999-11-15 Revised:1999-12-06 Published:2000-08-20 Online:2000-08-20

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摘要： 通过热力学数据的预报与计算，对ＺｒＯ２－Ｔｉ体系的相间热力学稳定性进行了分析，并确定了材料合成的热力学条件．在此基础上常压烧结合成了不同组分配比的ＺｒＯ２－Ｔｉ系复合材料，并采用ＸＲＤ、ＳＥＭ、ＴＥＭ等方法对材料的显微结构进行了表征．ＺｒＯ
－Ｔｉ系均质复合材料由α－Ｔｉ相，四方ＺｒＯ２相和少量的单斜ＺｒＯ２相组成．ＸＲＤ和ＴＥＭ分析表明，组元Ｔｉ和ＺｒＯ２之间没有发生明显的化学反应，具有良好的化学相容性．

关键词: ZrO2-Ti体系, 复合材料, 热力学分析, 金属陶瓷, 显微结构

Abstract: The standard Gibbs free energy of Ti2O was predicted according to the quasi-parabola rule.
The co-existing region of Ti and ZrO2 was obtained by thermodynamic calculation to determine the synthesis conditions of this composite.
ZrO2-Ti system composites sintered under ordinary pressure were prepared by a powder metallurgical method. The gradient distribution of
composition, the interfacial microstructure between layers and the combining state of phases between Ti and ZrO2 were investigated by means of
XRD, SEM, EDS, TEM and so on. The experimental results show that the joint between Ti and ZrO2 phases is physical in this composite. ZrO2 mainly
exists as a tetragonal phase.

Key words: ZrO2-Ti system, thermodynamic analysis, microstructure, composites, cermet

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