Microstructure and electrical properties of (Ba_0.85Ca_0.15)_{1鈭?span style='font-style: italic'>x}Li_x(Ti_0.90Zr_0.10)_{1鈭?span style='font-style: italic'>x}Nb_xO₃

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• 作者：Tao Chen ; ^{chentaocmc@163.com} ; ^{myfriendsroom@163.com} ; Ting Zhang ; Jifang Zhou ; Jianwei Zhang ; Yuhong Liu ; Guangchang Wang
• 关键词：C. Electrical properties ; Ceramics ; Low sintering temperature ; Ion substitution
• 刊名：Ceramics International
• 出版年：2012
• 期刊代码：13_02728842
• 类别：ms
• 出版时间：July, 2012
• 卷：38
• 期：5
• 页码：3591-3594
• 文件大小：787 K

摘要

A low sintering temperature is demonstrated for (Ba_0.85Ca_0.15)_1鈭?em>xLi_x(Ti_0.90Zr_0.10)_1鈭?em>xNb_xO₃ (BCLTZN-x) piezoelectric ceramics, where BCLTZN-x lead-free piezoelectric ceramics were prepared by the normal sintering. Effects of Li and Nb on the microstructure and electrical properties of these ceramics were investigated. The sintering temperature of BCLTZN-x ceramics was decreased greatly by introducing Li and Nb, and the grain size of these ceramics decreases with increasing x. These ceramics with a small amount of Li and Nb maintain good piezoelectric properties, together with a low sintering temperature and a lower dielectric loss. These ceramics with x = 0.01 demonstrate optimum electrical properties: d₃₃ 鈭?#xA0;353 pC/N, k_p 鈭?#xA0;41.1%, T_c 鈭?#xA0;86 掳C, 蓻_r 鈭?#xA0;4236, and tan 未 鈭?#xA0;0.75%.