用铁电微分回线谱分析方法研究了Ba 0.99 Sr 0.01 TiO 3陶瓷的极化疲劳效应, 该方法可将线性和非线性电导、非铁电极化电容、以及纯铁电极化信号完全分开. 实验给出各效应对应的微分谱线型参数在疲劳过程中的变化规律, 并据此分出样品中分别由180°畴和90°畴提供的极化, 发现在同等作用下, 180°畴提供的极化更快出现疲劳.
By means of ferroelectric differential hysteresis loop spectra, the polarization fatigue of Ba 0.99 Sr 0.01 TiO3 ceramics was carefully studied. The effects of conductance, paraelectrics and pure ferroelectrics could be definitely separated. The results show that the polarization fatigue arose from 180° domain appears much faster than that arose from 90° domain. Ferroelectric differential loop spectra are proved to be a much more powerful method to describe polarization fatigue than traditional hysteresis loop.
参考文献
| [1] | Takasu H. J. Electroceramics, 2000, 4 (23): 327--338. [2] Dawber M, Scott J F. Applied Physics Letters, 2000, 76 (8): 1060--1062. [3] 沈韩, 王卫林, 陈敏, 等(SHEN Han, et al). 无机材料学报(Journal of Inorganic Materials), 2003, 18 (5): 1603--1608. [4] Jaffe B, Cook W R, Jaffe H. Piezoelectric Ceramics, New York: Academic Press, 1971. 204--206. [5] Wang G S, Meng X L. Applied Physics Letters, 2001, 79 (21): 3476--3478. [6] Tagantsev A K, Stolichnov I, Colla E L, et al. Journal of Applied Physics, 2001, 90 (3): 1387--1402. [7] 李景德, 李智强, 陆夏莲, 等. 物理学报(Acta Physica Sinica), 2000, 49 (1): 160--163. [8] 李景德, 沈韩, 陈敏. 电介质理论. 北京: 科学出版社, 2003. 295--306. [9] Colla E L, Stolichnov I, Bradely P E, et al. Applied Physics Letters, 2003, 82 (10): 1604--1606. [10] Hilger S. Results Math., 1990, 18: 18--56. [11] Spedding V. New Scientist (London), 2003, 179 (2404): 28--32. |
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