| Ce—TZP陶瓷材料马氏体相变内耗的研究 |
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| 引用本文： | 陈锋,陈沙鸥,张宏图,折晓黎. Ce—TZP陶瓷材料马氏体相变内耗的研究[J]. 兰州大学学报(自然科学版), 1991, 0(2) |
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| 作者姓名： | 陈锋 陈沙鸥 张宏图 折晓黎 |
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| 作者单位： | 兰州大学材料科学系，兰州大学材料科学系，青岛大学物理系，兰州大学材料科学系 兰州，730000，兰州，730000，兰州，730000 |
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| 基金项目： | 南京大学固体微结构实验室资助项目 |
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| 摘 要： | 本文观察了Ce—TZP陶瓷材料马氏体相变内耗的现象,发现加入13mol％的CeO_2能使ZrO_2的正逆马氏体相变点分别降至203k和243k,而且使ZrO_2马氏体相变的滞后现象减小。观察到在对应的内耗峰附近有软模现象发生,从而推断Ce—TZP相变增韧陶瓷材料的马氏体相变可能是外力感生界面上位错的运动而引起的。
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| 关 键 词： | Ce-TZP 内耗 马氏体相变 相变增韧 软模 |
Study on Internal Friction of Martensite Phase Transformation of Ceramic Material of Ce-TZP |
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| Chen Feng,Chen Shaou,Zhe Xiaoli. Study on Internal Friction of Martensite Phase Transformation of Ceramic Material of Ce-TZP[J]. Journal of Lanzhou University(Natural Science), 1991, 0(2) |
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| Authors: | Chen Feng Chen Shaou Zhe Xiaoli |
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| Affiliation: | Chen Feng,Chen Shaou,Zhe Xiaoli Department of Material Science,Lanzhou University,Lanzhou,730000 Zhang Hongtu Department of Physics,Qingdao University,Qingdao,266034 |
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| Abstract: | In this paper, the internal friction of martensite phase transformationof ceramic material of Ce-TZP (CeO_2 stabilized tetragonal ZrO_2polycrystals) has been observed. The results show that putting 13mol%CeO_2 in ZrO_2 can make the temperature of phase transformation of ZrO_2reduce to 203K (tetragonal to monoclinic) and 243K (monoclinic totetragonal) and can also make the hysteresis of ZrO_2 phase transformationdecrease. We have discovered that the phenomena of damping modelsoccur in the neighbourhood of internal friction peak. By analysingdamping models, We infer that the martensite phase transformation ofCe-TZP is due to vibration of strings of dislocation in phase surface. |
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| Keywords: | Ce-TZP internal friction martensitephase transformation phase transformative toughening damping model |
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