Piezoelectric properties of [Li_0.03(K_0.48Na_0.52)_0.97](Nb_0.97Sb_0.03)O₃-(Ba_0.85Ca_0.15)(Ti_0.90Zr_0.10)O₃ lead-free piezoelectri

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• 作者：Xiaoyu Chen ; Jiagang Wu ; ^{wujiagang0208@163.com} ; ^{msewujg@scu.edu.cn} ; Xiaojing Cheng ; Bo Wu ; Wenjuan Wu ; Dingquan Xiao ; Jianguo Zhu
• 关键词：Alkali niobate ; (Ba ; Ca)(Ti ; Zr)O3 ; Piezoelectric properties
• 刊名：Current Applied Physics
• 出版年：2012
• 期刊代码：15_15671739
• 类别：ph
• 出版时间：May, 2012
• 卷：12
• 期：3
• 页码：752-754
• 文件大小：435 K

摘要

[Li_0.03(K_0.48Na_0.52)_0.97](Nb_0.97Sb_0.03)O₃-(Ba_0.85Ca_0.15)(Ti_0.90Zr_0.10)O₃ [(1鈭?em>x)LKNNS-xBCTZ] lead-free piezoelectric ceramics were prepared by the conventional solid state method, and effects of BCTZ content on the piezoelectric properties of LKNNS ceramics were mainly investigated. A stable solid solution has been formed between LKNNS and BCTZ, and a morphotropic phase boundary of (1鈭?em>x)LKNNS-xBCTZ ceramics is identified in the range of 0聽<聽x聽鈮ぢ?.02. The Curie temperature of (1鈭?em>x)LKNNS-xBCTZ ceramics decreases with increasing BCTZ content. A higher 蓻_r value and a lower tan 未 value are demonstrated for the (1鈭?em>x)LKNNS-xBCTZ ceramic with x聽=聽0.02. The (1鈭?em>x)LKNNS-xBCTZ ceramic with x聽=聽0.02 has an enhanced electrical behavior of d₃₃聽鈭悸?37聽pC/N, k_p聽鈭悸?8.6%, 蓻_r聽鈭悸?451, tan 未聽鈭悸?.037, and T_c聽鈭悸?35聽掳C. As a result, (1鈭?em>x)LKNNS-xBCTZ ceramics are promising candidate materials for the field of lead-free piezoelectric materials.