材料科学
压电
陶瓷
铌酸钾
三元运算
钾
钠
铁电性
矿物学
压电系数
铁电陶瓷
铌酸锂
纳米技术
复合材料
光电子学
冶金
电介质
程序设计语言
化学
计算机科学
作者
Kaiqin Xu,Jun Li,Xiang Lv,Jiagang Wu,Xixiang Zhang,Dingquan Xiao,Jianguo Zhu
标识
DOI:10.1002/adma.201601859
摘要
A superior piezoelectric coefficient (d33 = 570 ± 10 pC N"1 ), the highest value reported to date in potassium-sodium niobate-based ceramics, is obtained in (1-x-y)K1-w Naw Nb1-z Sbz O3-y BaZrO3-x - Bi0.5 K0.5 HfO3 ceramics. This high d33 value can be ascribed to the co-existence of "nano-scale strain domains" (1-2 nm) and a high density of ferroelectric domain boundaries. Therefore, ternary KNN-based ceramics demonstrate the potential for applications.
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