Temperature insensitive piezoelectric properties on the morphotropic phase boundary of BaZrO3-modified lead-free KNN-BLT ceramics

被引：4

作者：

Duong, Trang An ^{[1
]}

Erkinov, Farruhk ^{[1
]}

Nguyen, Hoang Thien Khoi ^{[1
]}

Ahn, Chang Won ^{[2
,3
]}

Kim, Byeong Woo ^{[4
]}

Han, Hyoung-Su ^{[1
]}

Lee, Jae-Shin ^{[1
]}

机构：

[1] Univ Ulsan, Sch Mat Sci & Engn, 14,Techno Saneop Ro55 Beon Gil, Ulsan, South Korea

[2] Univ Ulsan, Dept Phys, 93 Daehak Ro, Ulsan, South Korea

[3] Univ Ulsan, EHSRC, 93 Daehak Ro, Ulsan, South Korea

[4] Univ Ulsan, Dept Elect Engn, 93 Daehak Ro, Ulsan, South Korea

来源：

JOURNAL OF ELECTROCERAMICS | 2020年 / 45卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

Lead‒ free piezoceramics; Morphotropic phase boundary; Phase transition; Temperature stability; DOPED PZT CERAMICS; FREE PIEZOCERAMICS; ELECTRICAL-PROPERTIES; GIANT PIEZOELECTRICITY; THERMAL-STABILITY; FREE PEROVSKITE; TRANSITION; MICROSTRUCTURE; PERFORMANCE; STRAIN;

D O I：

10.1007/s10832-021-00236-9

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The formation of a morphotropic phase boundary (MPB) in piezoelectric ceramics is one of the most important techniques to enhance their dielectric and piezoelectric properties. In this work, a rhombohedral (R) and tetragonal (T) phase boundary has been designed and clarified using the lead-free 0.92(Na0.5K0.5)NbO3-(0.08-x)(Bi0.5Li0.5)TiO3-xBaZrO(3) ternary system. The R-T phase coexistence region is identified in the ceramics with 0.06 <= x <= 0.07. We successfully demonstrated that the crystal's relatively enhanced d(33) and its excellent temperature stability are originated from phase transition behaviors that were confirmed by the temperature-dependent dielectric properties and X-ray diffraction (XRD) patterns.

引用

页码：164 / 171

页数：8

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