| (Ce,Mg)-PSZ陶瓷材料的力学性能和显微结构 |
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| 引用本文： | 韩明,陈玉如,吴厚政,张琪.(Ce,Mg)-PSZ陶瓷材料的力学性能和显微结构[J].兵器材料科学与工程,2001,24(3):3-6. |
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| 作者姓名： | 韩明 陈玉如 吴厚政 张琪 |
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| 作者单位： | 天津大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金;59502003; |
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| 摘 要： | 以 10mol%MgO -PSZ为基础 ,研究了添加 5 .7mol%、7.4mol%和 9.1mol%CeO2 的 (Ce,Mg) -PSZ陶瓷的力学性能和显微结构。实验结果表明 :材料的耐高温老化性随CeO2 含量的增加而增强。微观结构分析证实添加CeO2后高温时PSZ材料发生css-ZrO2 →t-ZrO2 +MgO分解 ,延缓了css-ZrO2 →m -ZrO2 +MgO分解。同时CeO2 和MgO有效地稳定了c -ZrO2 和t-ZrO2 。
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| 关 键 词： | (Ce Mg)-PSZ陶瓷 热处理 力学性能 显微结构 |
| 文章编号： | 1004-244(2001)03-0003-04 |
| 修稿时间： | 2000年6月1日 |
MECHANICAL PROPERTIES AND MICROSTRUCTURE OF (Ce,Mg) - PSZ CERAMICS |
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| Han Ming,Chen Yuru,Wu Houzheng,Zhang QiSchool of Materials Science and Engineering,Tianjin University,Tianjin.MECHANICAL PROPERTIES AND MICROSTRUCTURE OF (Ce,Mg) - PSZ CERAMICS[J].Ordnance Material Science and Engineering,2001,24(3):3-6. |
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| Authors: | Han Ming Chen Yuru Wu Houzheng Zhang QiSchool of Materials Science and Engineering Tianjin University Tianjin |
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| Affiliation: | Han Ming,Chen Yuru,Wu Houzheng,Zhang QiSchool of Materials Science and Engineering,Tianjin University,Tianjin 300072 |
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| Abstract: | Based on 10mol%MgO-PSZ, the mechanical properties and microstructure of (Ce,Mg)-PSZ ceramics with the addition of 5.7, 7.4 and 9.1mol%CeO 2 have been studied in this paper. The results show that the high temperature degradation resistance of (Ce,Mg)-PSZ ceramics is improved obviously with the increase of CeO 2 content. XRD and TEM analysis demonstrate that the addition of CeO 2 causes a new decomposition of c ss -ZrO 2→t-ZrO 2+MgO instead of the decomposition of c ss -ZrO 2→m-ZrO 2+MgO and c-ZrO 2 and t-ZrO 2 can be effectively stabilized by CeO 2 and MgO. |
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| Keywords: | Ce Mg)-PSZ ceramics heat treatment mechanical property microstructure |
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