| Ce-TZP陶瓷在应力作用下的相变特性 |
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| 引用本文： | 黄勇,曾照强,丁博,郑隆烈,江作昭. Ce-TZP陶瓷在应力作用下的相变特性[J]. 硅酸盐学报, 1990, 18(3): 228-236 |
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| 作者姓名： | 黄勇 曾照强 丁博 郑隆烈 江作昭 |
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| 作者单位： | 清华大学材料科学与工程系(黄勇，曾照强，丁博，郑隆烈)，清华大学材料科学与工程系(江作昭) |
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| 摘 要： | 本文研究了不同CeO_2含量,不同烧结制度的Ce-TZP陶瓷的应力-应变曲线,并同时测定在不同应力作用下材料中t-ZrO_2和m-ZrO_2相含量的变化规律。试验结果表明Ce-TZP陶瓷在应力作用下产生屈服和塑性变形。同的还发现这种陶瓷的屈服现象、形状记忆效应和织构特性都与材料中的t-ZrO_2(?)m-ZrO_2相变有关。本文详细讨论了Ce-TZP陶瓷产生屈服的原因和条件,探讨了应力、应变、温度和相变的内在关系。
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| 关 键 词： | 相变 形状记忆效应 塑性变形 织构 |
PHASE TRANSFORMATION BEIIAVIORS OF Ce-TZP CERAMICS UNDER STRESS |
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| Huang Yong Zeng Zhaoqiang Ding Bo Zheng Longlie Jiang Zuozhao. PHASE TRANSFORMATION BEIIAVIORS OF Ce-TZP CERAMICS UNDER STRESS[J]. Journal of The Chinese Ceramic Society, 1990, 18(3): 228-236 |
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| Authors: | Huang Yong Zeng Zhaoqiang Ding Bo Zheng Longlie Jiang Zuozhao |
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| Abstract: | In this paper, the stress-strain curves of Ce-TZp ceramics with various CeO_2 contents sintered at different conditions are investigated Changes of tetragonal and monoclinic zirconia fraction under stress are measured. The results show that yield and plastic deformation take place under tensile stress. At the same time it is found that yield, shape memory effect and texture are all related to the phase transfomation t-ZrO_2(?)mZrO_2. The causes and conditions of yield occurred in Ce-TZp ceramics are discussed in detail, and the relationship among stress, strain, temperature and phase transfomation are studied. |
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| Keywords: | phase transformation shape memory effect piastic deformation texture |
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