Bi-templated grain growth maximizing the effects of texture on piezoelectricity

被引：14

作者：

Kang, Woo-Seok ^{[1
]}

Lee, Tae-Gon ^{[2
]}

Kang, Joo-Hee ^{[3
]}

Lee, Ju-Hyeon ^{[1
]}

Choi, Gangho ^{[1
]}

Kim, Sun-Woo ^{[2
]}

Nahm, Sahn ^{[2
]}

Jo, Wook ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol UNIST, Sch Mat Sci & Engn, 50 UNIST Gil, Ulsan 44919, South Korea

[2] Korea Univ, Dept Mat Sci & Engn, 145 Anam Ro, Seoul 02841, South Korea

[3] Korea Inst Mat Sci KIMS, Mat Anal & Evaluat Dept, 797 Changwondaero, Chang Won 51508, Gyeongnam, South Korea

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2021年 / 41卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

Templated grain growth; Piezoceramics; Electromechanical strains;

D O I：

10.1016/j.jeurceramsoc.2020.12.028

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：

Templated grain growth is beneficial for piezoelectric materials, the properties of which become the best in their single crystalline form. Nevertheless, a textured ceramic prepared by a templated grain growth technique often fails in exhibiting as good properties as expected in single crystals even with a high degree of orientation factor. Here, we propose a new strategy for maximizing texturing effect by suppressing the growth of untextured matrix grains. The textured ceramics made by our method, so-called bi-templated grain growth, are featured by ultrahigh piezoelectric properties (d(33)=-1,031 pC/N, d.g=-59,000, k(p)=-0.76). A special emphasis is on the achieved electric-field-induced strain of 0.13 % at 1 kV/mm, which is as high as that of single crystals. This work demonstrates that not only the degree of texture but also the coarsening of untextured matrix grains should be well-controlled to best exploit the templated grain growth technique.

引用

页码：2482 / 2487

页数：6

共 13 条

[1] Enhanced electromechanical properties and phase transition temperatures in [001] textured Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ternary ceramics [J].