| SiC_w／Al_2O_3－（Ti，W）C复相陶瓷的微观结构及其力学性能 |
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| 引用本文： | 顾延慰, 潘敏元,赵高扬. SiC_w／Al_2O_3－（Ti，W）C复相陶瓷的微观结构及其力学性能[J]. 材料工程, 1995, 0(12) |
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| 作者姓名： | 顾延慰 潘敏元 赵高扬 |
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| 作者单位： | 西安交通大学，西安理工大学 |
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| 摘 要： | 本文对Ａｌ_２Ｏ_３（Ｔｉ，Ｗ）Ｃ和ＳｉＣｗ－Ａｌ_２Ｏ_３（Ｔｉ，Ｗ）Ｃ的力学性能进行了分析对比，研究了热压工艺、ＳｉＣ晶须含量、晶须分散效果和晶须／基体的复合情况等对Ａｌ_２Ｏ_３（Ｔｉ，Ｗ）Ｃ复相陶瓷力学性能的影响。从热膨胀系数失配角度分析和微观结构的观察证实，ＳｉＣ晶须及（Ｔｉ，Ｗ）Ｃ固溶体对改善Ａｌ_２Ｏ_３陶瓷力学性能的效果是显著的，ＳｉＣ_ｗ－Ａｌ_２Ｏ_３．（Ｔｉ，Ｗ）Ｃ陶瓷材料的增韧机制主要是裂纹偏转和裂纹桥接。
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| 关 键 词： | Al_2O_3，（Ti.W）C，SiC晶须，力学性能，增韧机制 |
Microstructure and Mechanical Properties of SiCw/Al_2O_3-(Ti,W)C Ceramic Material |
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| GuYanwei. Microstructure and Mechanical Properties of SiCw/Al_2O_3-(Ti,W)C Ceramic Material[J]. Journal of Materials Engineering, 1995, 0(12) |
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| Authors: | GuYanwei |
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| Affiliation: | GuYanwei(Xi' an Jiaotong University)PanMinyuan; Zhao Gaoyang(Xi' an University of Technology) |
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| Abstract: | his paper has contrasted the mechanical proporties of Al_2O_3-(Ti,W) C with SiCw-Al_2O_3(Ti,W)C matertal.The influence of hot pressing technologies,SiC whisker content , dispersed effect of whiskerand the compound situation between the whisker and the matrix on mechanical proporties of Al_2O_3(Ti,w)C is studied,It is verified from the thermal expansion misfit and microstructure that the tougheningmechanisms of SiCw-Al_2O_3-(Ti,W)C are crack deflection and bridging. |
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| Keywords: | Al_2O_3 (Ti W)C SiC whisker mechanical properties toughening mechanism |
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