Achieving both large transduction coefficient and high Curie temperature of Bi and Fe co-doped PZT piezoelectric ceramics
Achieving both large transduction coefficient and high Curie temperature of Bi and Fe co-doped PZT piezoelectric ceramics
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Bi、Fe共掺杂PZT压电陶瓷同时实现大换能系数和高居里温度
DOI：
10.1016/j.ceramint.2022.09.014
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发表时间：
2022-09
影响因子：
5.2
通讯作者：
Jianguo Chen
中科院分区：
文献类型：
--
作者：
Jianyin Lin;Binghao Cui;Jinrong Cheng;Qi Tan;Jianguo Chen
Achieving both the large transduction coefficient (the product of piezoelectric charged33and voltage coefficientsg33) and high Curie temperature is very important to improve the power generation performance and their thermal stability of piezoelectric energy harvesters. It is difficult to improve the transduction coefficient of the commercial PZT based piezoelectric ceramics due to the same variation trend of piezoelectric charge coefficient and dielectric constant with chemical modifications. In this work, Bi2O3and Fe2O3co-modified ((Pb1-xBix)((Zr0.53Ti0.47)1-xFex)O3) ceramics were prepared by conventional solid state reaction method, and their dielectric and piezoelectric properties were studied. The piezoelectric charge coefficientd33increases by Bi and Fe co-modifications due to the enlarged grain size and reduced lattice distortion, while the dielectric constantε33deceases mainly owing to the increased micro-pores in grains, leading to the enhancement transduction coefficientd33×g33. The Curie temperatureTc and maximum transduction coefficientd33×g33are 346 °C and 17169 × 10−15m2/N, respectively, which are both higher than those of commercial PZT and PZN-PZT based piezoelectric ceramics. This work provides a new way to enhance the transduction coefficient of PZT based ceramics for piezoelectric energy harvesters used in wide temperature range.
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发表时间：
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期刊：
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