Electrical properties of [Bi 1– z  (Na 1– x – y – z  K  x  Li  y  )] 0.5 Ba  z  TiO 3  multi‐component lead‐free piezoelectric ceramics | Zendy

Lin Dunmin | Zendy; Xiao Dingquan | Zendy; Zhu Jianguo | Zendy; Yu Ping | Zendy

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Electrical properties of [Bi 1– z (Na 1– x – y – z K x Li y )] 0.5 Ba z TiO 3 multi‐component lead‐free piezoelectric ceramics

Author(s) -

Lin Dunmin,

Xiao Dingquan,

Zhu Jianguo,

Yu Ping

Publication year - 2005

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200510034

Subject(s) - ceramic , ferroelectricity , coercivity , materials science , analytical chemistry (journal) , piezoelectricity , polarization (electrochemistry) , perovskite (structure) , mineralogy , crystallography , dielectric , condensed matter physics , physics , chemistry , composite material , optoelectronics , chromatography

A new system of BNT‐based multi‐component lead‐free piezoelectric ceramics, [Bi 1– z (Na 1– x – y – z K x Li y )] 0.5 Ba z TiO 3 , was prepared by conventional ceramic technique and the electrical properties of the ceramics were studied. The analysis of X‐ray diffraction shows that all ceramics investigated can form a pure perovskite phase. The ceramics exhibit good piezoelec‐ tric performances and strong ferroelectricity: piezoelectric constant d 33 = 205 pC/N, electromechanical coupling factor k P = 37.0%, remanent polarization P r = 38.5 µC/cm 2 , coercive field E c = 2.80 kV/mm, and high depolarization temperature T d . It is obvious that [Bi 1– z (Na 1– x – y – z K x Li y )] 0.5 Ba z TiO 3 ceramics can be used in practical devices. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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