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| ZrO2 层状复合陶瓷的显微结构及晶体学位向关系 | |
| 引用本文： | 陈蓓,丁培道,程川,周泽华. ZrO2 层状复合陶瓷的显微结构及晶体学位向关系[J]. 复合材料学报, 2005, 22(1): 59-63 |
| 作者姓名： | 陈蓓 丁培道 程川 周泽华 |
| 作者单位： | 1. 高电压与电工新技术教育部重点实验室;重庆大学,资源与环境科学学院 2. 重庆大学,材料科学与工程学院,重庆,400044 3. 重庆大学,资源与环境科学学院 4. 中国科学院,上海硅酸盐研究所,上海,200050 |
| 基金项目： | 国家自然科学基金项目(59995440) |
| 摘 要： | 利用扫描和透射电子显微镜及X-rays 衍射仪等, 对ZrO2 层状复合陶瓷的显微形貌特征、断裂相变量及晶体学位向关系进行了深入研究。研究结果表明, ZrO2 层状陶瓷由于界面压应力的作用, 抑制了烧结过程中晶粒的生长速度及冷却后四方相向单斜相的转变, 提高了可相变四方相的含量, 提高了断裂相变量, 改善了材料的力学性能, 但却没有改变四方相和单斜相之间的晶体学位向关系, 在层状ZrO2 陶瓷中, (100) m/ / (010) t 的晶体学位向关系仍然存在。 |
| 关 键 词： | ZrO2 层状复合陶瓷 界面压应力 显微形貌 相变 晶体学位向关系 |
| 文章编号： | 1000-3851(2005)01-0059-05 |
| 收稿时间： | 2003-11-17 |
| 修稿时间： | 2004-02-12 |
MICROSTRUCTURE AND CRYSTAL ORIENTATION RELATIONSHIPOF ZrO2 LAMINATED CERAMICS |
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| CHEN Bei,Ding Peidao,CHENG Chuan,ZHOU Zhehua. MICROSTRUCTURE AND CRYSTAL ORIENTATION RELATIONSHIPOF ZrO2 LAMINATED CERAMICS[J]. Acta Materiae Compositae Sinica, 2005, 22(1): 59-63 | |
| Authors: | CHEN Bei Ding Peidao CHENG Chuan ZHOU Zhehua |
| Affiliation: | 1. The Key Lab of High Voltage Engineering and Electrical New Technology, MOE;2. Institute of Resource and EnvironmentScience;3. Institute of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;4. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China |
| Abstract: | The micro-appearance feature, the formation of twin lines of monoclinic, the phase transformation and the crystal orientation relationship of ZrO_2 laminated ceramics were studied by scanning electron micro scope(SEM),transmission electron microscope(TEM), X-rays instruments, etc.The experiment results show that the interface compressive stresses can decrease the rate of the grains growth, control the transformation of tetragonal during sintering, raise the amount of the transformable tetragonal, strengthen the effect of the transformation effect, but do not change the orientation relation between tetragonal and monoclinic phase, while (100)_m//(010)_t still exist. |
| Keywords: | ZrO_2 laminated ceramics interface compressive stresses microstructure feature phase transformation crystal orientation relationship |
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