3Y-TZP/Fe-Al复合材料化学相容性分析

无机材料学报, 2004, 19(4): 859-864.

3Y-TZP/Fe-Al复合材料化学相容性分析

1.1. onclick="TPI_openwindow('/GRID20/knowledgenet.aspx?sdb=CJFD&

2. 2. 山东大学材料液态结构与遗传性教育部重点实验室, 工程陶瓷山东省重点实验室

济南 250061

3. 3. onclick="TPI_openwindow('/GRID20/knowledgenet.aspx?sdb=CJFD&

sfield=%e6%9c%ba%e6%9e%84&

skey=%e5%8c%97%e4%ba%ac%e7%a7%91%e6%8a%80%e5%a4%a7%e5%ad%a6%e6%9d%90%e6%96%99%e5%ad%a6%e9%99%a2', 'knet','status=yes,scrollbars=yes,width=375,height=250')">北京科技大学材料学院, 北京 100083>

1.1.Dept. of Material Science and Engineering

Jinan University

China

2. 2.Key Lab for Liquid Structure and Heredity of Ministry of Education

Engineering Ceramics Key lab of Shandong Province

Shandong University

Jinan 250061

China

3. 3.Dept. of Material Science and Engineering

University of Science and Technology Beijing

Beijing 100083

China

关键词：复合材料 , chemical compatibility , thermodynamic calculation , interface

Chemically Compatibility Analysis of 3Y-TZP/Fe-Al Composite

LI Jia , YIN Yan-Sheng , LIU Jun-You , FAN Run-Hua

Keywords： composite , 化学相容性 , 热力学计算 , 界面

根据热力学原理,考察了Fe-Al系金属间化合物与ZrO2陶瓷基体的化学相容性。结果表明,当Fe-Al金属间化合物中Al<42at％时,Fe-Al金属间化合物与ZrO₂基体不易发生化学反应。XRD、SEM及HREM分析验证了此结论。HREM观察表明Fe₃Al与基体3Y-TZP之间界面干净,无反应层和过渡层的存在,Fe₃Al与ZrO₂界面两侧的原子排列不是一一对应的,只是部分互相匹配,形成半共格关系。界面上品面间错配度δ=30％,界面上存在着错配位错。

The chemically compatibility of iron aluminide with zirconia matrix was analyzed by thermodynamic theory.
The results show that the chemical interaction between iron aluminide intermetallic and zirconia matrix will not take place when Al<42at%,
and this result was certified by XRD,SEM and HREM. HREM image exhibits that the interface between Fe₃Al and 3Y-TZP is clean, and no reaction
phase exists at the interface. The atom arrangement beside interface between Fe₃Al and ZrO₂ is partly corresponding, existing at
semicoherent state. The mismatch degree δ of spacing between planes in crystal is 30%, and the dislocation induced by mismatch
exists at interface.

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