In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 1061-1062 ( 2014-12), p. 79-82
Abstract:
The Mg-doped (Ba 0.97 Ca 0.03 )(Ti 0.96-x Zr 0.04 Mg x )O 3 piezoelectric ceramics were prepared by conventional sintering technique. Influences of MgO doping content on the phase structure and dielectric, piezoelectric, and ferroelectric properties were investigated. The XRD patterns suggested that a morphotropic phase boundary (MPB) crossing pseudocubic and tetragonal symmetries occurs at the compositions containing 0.5~0.7 at.% Mg. Because of such transitional behavior, the piezoelectric coefficient ( d 33 ), electromechanical coupling coefficient ( k p ), and remanent polarization ( P r ) were enhanced to peak values, 327 pC/N, 37.2%, and 15.79 μ C/cm 2 , respectively. However, the dielectric constant ( ε r ) showed a decreasing tendency with raising Mg content.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.1061-1062
DOI:
10.4028/www.scientific.net/AMR.1061-1062.79
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2014
detail.hit.zdb_id:
2265002-7