| 微波促进陶瓷烧结的微观机制 |
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| 引用本文： | 黄向东,李建保,谢志鹏,黄勇. 微波促进陶瓷烧结的微观机制[J]. 应用基础与工程科学学报, 1997, 0(2) |
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| 作者姓名： | 黄向东 李建保 谢志鹏 黄勇 |
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| 作者单位： | 清华大学材料科学与工程系 |
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| 摘 要： | 微波能促进陶瓷的烧结，已是不争的事实，但对如何促进的微观机制的理解很不一致，本文从微波电场使带电缺陷，如空位间隙离子，产生定向移动的角度．分析了微波对扩散的促进作用，进而指出在微波烧结中，相对于常规烧结，微波只是促进了平行于电场方向的致密化，在宏观上对于电场方向不随时间转向的偏振电磁波，应能观察到平行电场方向的收缩率大于垂直于电场方向的收缩率．
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| 关 键 词： | 微波烧结，烧结机制，空位扩散 |
Mechanism of Microwave Enhancing Sintering Ceramics |
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| HUANG Xiangdong LI Jianbao XIE Zhipeng HUANG Yong. Mechanism of Microwave Enhancing Sintering Ceramics[J]. Journal of Basic Science and Engineering, 1997, 0(2) |
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| Authors: | HUANG Xiangdong LI Jianbao XIE Zhipeng HUANG Yong |
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| Abstract: | It has been obvious that microwave can enhance sintering of ceramics. But the mechanism of the enhancement is not understood in details. In this paper we e- valuated that how the electric field affects the diffusion of vacancy and interstice ion, and drew a conclusion that this is the reason why Microwave can enhance the desitifaction, and further more pointed out that the shrinkage parallel to the direc- tion of electric field is larger than those other direction. |
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| Keywords: | microwave sintering sintering mechanism vacancy diffusion. |
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