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研究了扩散相变中心温度分别为40℃和65℃的两种La-掺杂PMN基陶瓷在其扩散相变温度范围的电致应变、电致应变随电场(S~E)的滞后特性和剩余应变效应.结果发现,对于扩散相变中心温度为40℃的材料在0~1kV/mm单向电场驱动下,从-10~60℃电致应变和滞后都随温度的升高而减小;对另一种材料无论由± 1kV/mm交变电场或由 0~ 1kV/mm单向电场驱动,温度从13~41℃变化均出现电致应变峰值,而滞后和剩余应变随温度的升高而减小.对以上实验结果本文作了详细讨论.

The electrostrictive strain, hysterestic (S ~ E) nature and remanent strain effect were investigated in their diffuse phase transition temperature rang for two kinds of La-doping PMN-based ceramics with the diffuse phase transition center temperature 40℃ and 65℃ respectively. The experimental results show that for the material with diffuse phase transition center temperature 40℃, its strain and hysteresis decrease as temperature increases in the range of-10℃to 60℃ driving by 0~ 1kV/mm one direction field, and for the other material whether driving by + 1kV/mm AC field or 0~ 1kV/mm one direction field the strains exhibit a peak value with temperature change from 13℃ to 41℃, the remanent strain and hysteresis decrease monotonically with temperature increase. Above experimental results were also explained in detail.

参考文献

[1] Cieminski J V, et al. Ferroelectrics, 93: 315.
[2] Pilgrim S M, et al. J. Am. Ceram. Soc., 1992, 75 (7): 1970.
[3] 盛文军.中科院上海硅酸盐所硕士学位论文,1994年.
[4] Park J H, Kim B K, et al. Mat. Res. Bull., 1995, 30: 435.
[5] Swartz S L, et al. Mat. Res. Bull., 1982, 17: 1245.
[6] 温保松,严鸿萍,马佳华(WEN Bao-Song,et al).无机材料学报(Journal of Inorganic Materials),1999,14(6):945.
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