Revealing the role of heat treatment in enhancement of electrical properties of lead-free piezoelectric ceramics

The structural and electrical properties of the virgin, annealed, and quenched samples of 0.80BiFeO3–0.20BaTiO3 lead-free ceramics were investigated. The crystal structures investigated with the structure refinement method exhibited a rhombohedral structure for all the samples. The significant enhan...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physics 2017-07, Vol.122 (1)
Main Authors: Kim, Sangwook, Khanal, Gopal Prasad, Ueno, Shintaro, Moriyoshi, Chikako, Kuroiwa, Yoshihiro, Wada, Satoshi
Format: Article
Language:English
Subjects:
Annealing
Applied physics
Crystal structure
Diffraction
Electrical properties
Ferroelectric materials
Ferroelectricity
Heat treatment
Lattice strain
Lead free
Piezoelectric ceramics
Piezoelectricity
Quenching
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The structural and electrical properties of the virgin, annealed, and quenched samples of 0.80BiFeO3–0.20BaTiO3 lead-free ceramics were investigated. The crystal structures investigated with the structure refinement method exhibited a rhombohedral structure for all the samples. The significant enhancement of ferroelectric and piezoelectric properties is ascribed to the relaxation of the lattice strain induced in the samples after the heat treatment. The bond-length calculated from the final structure refinement results revealed the increment of the A-O bond-length after the heat treatment, while the B-O bond-length was maintained in all the virgin, annealed, and quenched samples suggesting the specific influence of the lattice strain at the A-site of the material system.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4991492