| SiC晶须补强莫来石基陶瓷复合材料的研究 |
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| 引用本文： | 李志宏,卫冰.SiC晶须补强莫来石基陶瓷复合材料的研究[J].金刚石与磨料磨具工程,1997(4):17-21. |
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| 作者姓名： | 李志宏 卫冰 |
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| 作者单位： | [1]郑州工业高等专科学校 [2]机械部郑州磨料磨具磨削研究所 |
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| 摘 要： | 本文主要研究了不同ＳｉＣ晶须加入量对莫来石基复合材料性能的影响，并对ＳｉＣ晶须、ＺｒＯ２颗粒在材料中的强韧性机理进行了探讨，结果表明：在０￣２５ｖｏｌ％ＳｉＣ晶须加入量范围内，材料的力学性能随ＳｉＣ晶须加入量的增加而提高，在２５ｖｏｌ％ＳｉＣ晶须加入量时，材料的致密化程度受到明显的影响；ＳｉＣ晶须、ＺｒＯ２对材料性能的贡献有叠加作用；材料中存在载荷转移、晶须拔出／解离、裂纹偏转、相变增韧等韧化机理
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| 关 键 词： | 莫来石 碳化硅 二氧化锆 晶须 复合材料 韧化 |
A Study on SIC Whisker Reinforced Mullite-Based Ceramic Composites |
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| Li Zihong et al.A Study on SIC Whisker Reinforced Mullite-Based Ceramic Composites[J].Diamond & Abrasives Engineering,1997(4):17-21. |
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| Authors: | Li Zihong |
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| Affiliation: | Li Zihong et al |
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| Abstract: | This paper investigated the effect of different SiC whisker addition on the properties of the mullite-based composites. The experimental results indicated that, within 0-25vol% SiC whisker addition, the mechanical properties of the composites were increased with the increasing of SiC whisker addition, but higher vol% SiC whisker is disadvantageous to the densification of the composites; the contributions of SiC whisker and ZrO2 to the properties of the composites were substantially parallel; load-transfer, whisker pull-out and debonding from matrix,crack deflection and transformation toughening of ZrO2 were main mechanisms of strengthening and toughening. |
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| Keywords: | mullite SiC whisker ZrO_2 composites mechanical properties strengthening and toughening |
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