Role of tetragonal distortion on domain switching and lattice strain of piezoelectrics by in-situ synchrotron diffraction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Shengdong Sun
  • Yueyun Zhang
  • Longlong Fan
  • Shiqing Deng
  • Botao Gao
  • Hui Liu
  • Jun Chen

Detail(s)

Original languageEnglish
Article number113627
Journal / PublicationScripta Materialia
Volume194
Online published18 Nov 2020
Publication statusPublished - 15 Mar 2021
Externally publishedYes

Abstract

The tetragonal phase is an indispensable component that plays an important role in forming the morphotropic phase boundary. Herein, the piezoelectric behaviors are systematically investigated in various Pb/Bi-based tetragonal piezoelectric systems as a function of tetragonal distortion using in-situ high-energy synchrotron diffraction. It is found that the tetragonal distortion has a significant influence on piezoelectric properties through constraining the domain switching. Specifically, a critical value of (c/a-1) ≈ 1.5 % is identified, below which the domain switching is significantly activated. The correlation between piezoelectric performance and the cooperative contribution of tetragonal distortion and domain switching has been established: Reducing tetragonal distortion and activating domain switching can enhance the piezoelectric coefficient. Furthermore, an approximate linear coupling between domain switching and lattice strain is confirmed in tetragonal piezoelectric systems. Insights from this work would facilitate the design of high-performance piezoelectrics, by controlling tetragonal distortion and domain switching.

Research Area(s)

  • Domain switching, Lattice strain, Piezoelectric ceramics, Synchrotron radiation, Tetragonal distortion

Citation Format(s)

Role of tetragonal distortion on domain switching and lattice strain of piezoelectrics by in-situ synchrotron diffraction. / Sun, Shengdong; Zhang, Yueyun; Fan, Longlong; Deng, Shiqing; Gao, Botao; Ren, Yang; Liu, Hui; Chen, Jun.

In: Scripta Materialia, Vol. 194, 113627, 15.03.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review