| 烧结助剂对热压SiCw/Si3N4复合材料性能的影响 |
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| 引用本文： | 周新贵,张长瑞,陈朝辉,周安郴.烧结助剂对热压SiCw/Si3N4复合材料性能的影响[J].国防科技大学学报,1998,20(2):105-108. |
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| 作者姓名： | 周新贵 张长瑞 陈朝辉 周安郴 |
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| 作者单位： | 国防科技大学材料工程与应用化学系 |
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| 摘 要： | 本文通过热压的方法分别制得以Ｙ２Ｏ３－Ａｌ２Ｏ３和Ｙ２Ｏ３－Ｌａ２Ｏ３为烧结助剂的ＳｉＣｗ／Ｓｉ３Ｎ４陶瓷基复合材料，对比了采用不同种类及含量的烧结助剂的ＳｉＣｗ／Ｓｉ３Ｎ４复合材料的性能结果，发现烧结助剂的种类及含量对ＳｉＣｗ／Ｓｉ３Ｎ４复合材料的弯曲强度和断裂韧性有明显的影响，对高温弯曲强度的影响尤为显著。
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| 关 键 词： | SiC晶须，烧结助剂，SiC／Si_3N_4，陶瓷基复合材料，热压 |
| 收稿时间： | 1997/12/17 0:00:00 |
The Effect of Sintering Additives on the Properties of HP SiCw/Si3N4 Composites |
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| Zhou Xingui,Zhang Changrui,Chen Zhaohui and Zhou Anchen.The Effect of Sintering Additives on the Properties of HP SiCw/Si3N4 Composites[J].Journal of National University of Defense Technology,1998,20(2):105-108. |
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| Authors: | Zhou Xingui Zhang Changrui Chen Zhaohui and Zhou Anchen |
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| Affiliation: | Department of Material Engineering and Applied Chemistry NUDT Changsha, 410073;Department of Material Engineering and Applied Chemistry NUDT Changsha, 410073;Department of Material Engineering and Applied Chemistry NUDT Changsha, 410073;Department of Material Engineering and Applied Chemistry NUDT Changsha, 410073 |
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| Abstract: | Several SiCw/Si 3N 4 ceramic matrix composites with Y 2 O 3-Al 2 O 3 and.Y 2O 3 La 2 O 2 sintering additives are made by hot pressing method in this paper.The results show that the type and composition of sintering additives have obvious effect on the bonding strength and fracture tonghness of the composites,especially at high temperatures. |
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| Keywords: | SiC whisker SiCw/Si 3N 4 Sintering additives Hot pressing Ceramic matrix composites |
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