Open AccessINVESTIGATION OF ELECTRIC FIELD-INDUCED ANTIFERROELECTRIC TO FERROELECTRIC PHASE TRANSITION AND PHASE STABILITY OF PLZST CERAMICS
Author(s) -
Peng Liu,
Yang Tong-qing,
Zhihong Wang,
Zhifei Xu,
Liangying Zhang,
Xi Yao
Publication year - 1998
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.47.1727
Subject(s) - materials science , phase boundary , antiferroelectricity , ferroelectricity , tetragonal crystal system , condensed matter physics , phase transition , dielectric , electric field , hysteresis , phase (matter) , analytical chemistry (journal) , crystallography , crystal structure , physics , chemistry , optoelectronics , quantum mechanics , chromatography
We have prepared antiferroelectric ceramics with compositions of (Pb0.97La0.02)(Zr1-x-ySnyTix)O3(x=0.09 or 0.1; 0.16≤y≤0.38) near antiferroelectric (AFE)tetragonal-ferroelectric (FE)rhombohedral morphotropic phase boundary. The effects of Sn content on electric field-induced AFE→FE switching field Ec, double-hysteresis-loop width ΔE, and temperature-induced FE→AFE phase transition temperature TFE, AFE→paraelectric (PE) transition temperature Tc are investigated. At constant Ti content x, both TEF and Tc decrease with increase of Sn content y. Electric hysteresis loop measurement demonstrates an increase of Ec and decrease of ΔE when Sn content y increases. Furthermore, we also find that Ec and ΔE are related with TFE and Tc. In situ X-ray diffraction under dc bias field shows that symmetry changes from tetragonal phase to rhombohedral phase with an increase of c axis,and an increase of lattice volume.