The effect of (Li,Ce) doping in Aurivillius phase material (Na0.52K0.42Li0.06)0.5Bi2.5(Nb1.88Sb0.06Ta0.06)O9
The effect of (Li,Ce) doping in Aurivillius phase material (Na0.52K0.42Li0.06)0.5Bi2.5(Nb1.88Sb0.06Ta0.06)O9
复制标题
DOI：
10.1002/pssa.200925289
复制
发表时间：
2010-08
期刊：
影响因子：
--
通讯作者：
Z. Gai;Y. Feng;Jin‐feng Wang;Ming‐lei Zhao;Limei Zheng;Chun‐Ming Wang;Shujun Zhang;T. Shrout
中科院分区：
文献类型：
--
作者：
Z. Gai;Y. Feng;Jin‐feng Wang;Ming‐lei Zhao;Limei Zheng;Chun‐Ming Wang;Shujun Zhang;T. Shrout
研究了(Li,Ce)取代A位对[(Na0.52K0.42Li0.06)Bi]0.5Bi2(Nb1.88Sb0.06Ta0.06)O9基陶瓷性能的影响。通过锂和铈的改性，[(Na0.52K0.42Li0.06)Bi]0.5Bi2 (Nb1.88Sb0.06Ta0.06)O9基陶瓷的压电活性显着提高。随着(Li,Ce)改性的增加，居里温度(TC)从625 oC逐渐降低至605 oC。 [(Na0.52K0.42Li0.06)Bi]0.44(Li,Ce)0.03[]0.03Bi2(Nb1.88Sb0.06Ta0.06)O9陶瓷的压电系数d33为28 pC/N，是陶瓷中最高的值。 [(Na0.52K0.42Li0.06)Bi]0.5Bi2(Nb1.88Sb0.06Ta0.06)O9 基陶瓷，也比报道的其他铋层状结构铁电 (BLSF) 系统 (∼5–19 pC/N) 的 d33 值高出近 50%。平面耦合因子 kp 和 kt 分别为 7.0 和 28.0%，以及高 TC (∼610 °C) 和稳定的压电性能，表明 (Li,Ce) 改性的 [(Na0.52K0.42Li0.06)Bi]0.5Bi2(Nb1.88Sb0.06Ta0.06)O9 基材料是高温应用的有希望的候选材料。
The effect of (Li,Ce) substitution for A‐site on the properties of [(Na0.52K0.42Li0.06)Bi]0.5Bi2 (Nb1.88Sb0.06Ta0.06)O9‐based ceramics was investigated. The piezoelectric activity of [(Na0.52K0.42Li0.06)Bi]0.5Bi2 (Nb1.88Sb0.06Ta0.06)O9‐based ceramics is significantly improved by the modification of lithium and cerium. The Curie temperature (TC) gradually decreases from 625 to 605 oC with increasing the (Li,Ce) modification. The piezoelectric coefficient d33 of the [(Na0.52K0.42Li0.06)Bi]0.44(Li,Ce)0.03[]0.03Bi2(Nb1.88Sb0.06Ta0.06)O9 ceramic was found to be 28 pC/N, the highest value among the [(Na0.52K0.42Li0.06)Bi]0.5Bi2(Nb1.88Sb0.06Ta0.06)O9‐based ceramics, also almost 50% higher than the reported d33 values of other Bismuth layer‐structured ferroelectric (BLSF) systems (∼5–19 pC/N). The planar coupling factor kp and kt were found to be 7.0 and 28.0%, together with the high TC (∼610 °C) and stable piezoelectric properties, demonstrating that the (Li,Ce) modified [(Na0.52K0.42Li0.06)Bi]0.5Bi2(Nb1.88Sb0.06Ta0.06)O9‐based material a promising candidate for high temperature applications.