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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

14mol%Ce-TZP和Al2O3/Ce-TZP层状复合材料的研究

俞海江; 万菊林; 梁开明; 王大宁; 刘凤茹   

  1. 清华大学材料系; 北京100084
  • 收稿日期:1997-12-01 修回日期:1998-01-19 出版日期:1998-12-20 网络出版日期:1998-12-20

14%mol Ce-TZP and Al2O3/Ce-TZP Layered Microcomposites

YU Hai-Jiang; WAN Ju-Lin; LIANG Kai-Ming; WANG Da-Ning; LIU Feng-Ru   

  1. Department of Materials Science and Engineering; Tsinghua University Beijing 100084 China
  • Received:1997-12-01 Revised:1998-01-19 Published:1998-12-20 Online:1998-12-20

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摘要： 本文主要通过对含有14mol％CeO2的Ce－TZP及不同结构参数的Ce－TZP／Al2O3层状复合材料断裂韧性的测试，从力学和材料角度出发分析Al2O3层厚及Al2O3层中Ce－TZP的含量对材料力学性能的影响．同时通过对KIc试样断裂后断面及受力侧面的激光拉曼微区分析，来定性解释Al2O3层的引入对Ce－TZP相变区形状及相变量的影响，从而揭示此类材料的增韧机制．

关键词: Ce－TZP, TZP／Al2O3层状复合材料, 相交增韧, 激光微区拉曼分析

Abstract: Through the testing of KIC value of 14mol%Ce-TZP and Ce-TZP/Al2O3 layered microcomposites with different fabric parameters, the influence of
Al2O3 layer thickness and Ce-TZP content in Al2O3 layer on the mechanical property of the materials was analysed in material and mechanics
perspective. In order to obtain the qulitatively explanation of the influence of Al2O3 layer on the transformation zone shape and transformation quantity, the Laser-Ramman
Micro Zone analysis on the section and side of KIC sample fractured was adopted, thus the toughening mechanism of materials such as Ce-TZP/Al2O3 layered
microcomposites can be expected.

Key words: Ce-TZP, Ce-TZP/Al2O3 layered microcomposites, transformation toughening, Laser-Ramman Micro Zone analysis

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