Premium
Effects of LiF on the Structure and Properties of Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 Lead‐Free Piezoelectric Ceramics
Author(s) -
Tan Chee Kiang Ivan,
Yao Kui,
Ma Jan
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2012.02771.x
Subject(s) - materials science , tetragonal crystal system , ceramic , phase transition , doping , trigonal crystal system , piezoelectricity , phase (matter) , analytical chemistry (journal) , mineralogy , crystal structure , crystallography , composite material , thermodynamics , chemistry , optoelectronics , chromatography , physics , organic chemistry
Preparation of Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 ( BCZT ) lead‐free piezoelectric ceramics with different amounts of LiF ( BCZT ‐ xLiF ) was done, and the effects of the LiF doping on the phase transition behavior and the electrical properties of the resulting ceramic were investigated. The experimental results showed that the polymorphic rhombohedral‐tetragonal phase transition temperature was found shifted toward room temperature with the Li doping. The study showed that BCZT lead‐free piezoelectric ceramic with improved performance properties at room temperature can be achieved by shifting the polymorphic phase transition point nearer room temperature through the addition of LiF .