期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 33, 期 13-14, 页码 2491-2497出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2013.04.010
关键词
Pb(Ni1/3Nb2/3)O-3-PbHfO3-PbTiO3; Piezoelectric properties; Morphotropic phase boundary; Curie temperature; Rayleigh analysis
资金
- China Scholarship Council
The dielectric and piezoelectric properties were investigated in the (1 - x)Pb(Hf1-yTiy)O-3-xPb(Ni1/3Nb2/3)O-3 (PNN-PHT, x=0.05-0.50, y=0.55-0.70) ternary system. The morphotropic phase boundary (MPB) was determined by X-ray powder diffraction analysis. Isothermal map of Curie temperature (T-C) related to the compositions in the phase diagram was obtained. The optimum dielectric and piezoelectric properties were achieved in ceramics with the MPB compositions, with the maxima values being on the order of 6000 and 970pC/N, respectively. Rayleigh analysis was used to study the extrinsic contribution (domain wall motion) in PNN-PHT system, where the extrinsic contribution was found to be similar to 30% for composition 0.49PNN-0.51PHT(30/70), showing a high nonlinearity. (C) 2013 Elsevier Ltd. All rights reserved.
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