Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23791
Title: Enhanced unipolar fatigue resistance in ferroelectric Pb(Ni1/3Nb2/3O3)-PbTiO3 ceramics prepared via glycerol-assisted solid-state reaction
Authors: Ye, Y
Huang, H 
Zhou, L 
Mai, YW
Issue Date: 2011
Publisher: Wiley-Blackwell
Source: Journal of the American Ceramic Society, 2011, v. 94, no. 2, p. 488-495 How to cite?
Journal: Journal of the American Ceramic Society 
Abstract: It is experimentally observed that PNN-PT ceramics processed with glycerol possess superior unipolar fatigue resistance; but the same ceramics processed without glycerol are vulnerable to unipolar fatigue. For PNN-PT-glycerol fatigued by 5 x 107 unipolar cycles, there are no losses in the maximum polarization (P-max) and remnant polarization (P-r). But for PNN-PT, these losses are similar to 14% and 22%, respectively. In addition, strain asymmetry gamma(S) and internal bias field E-bias of PNN-PT-glycerol are much less than those of PNN-PT. However, the ferroelectric properties can be recovered by bipolar cycles and thermal annealing; and such recovery is much easier and larger in PNN-PT-glycerol than in PNN-PT ceramics. Scanning electron microscopy micrographs show that the significant loss in properties of the fatigued PNN-PT ceramics is accompanied by a measurable number of severely damaged grains in the samples, especially in the region near the electrode surface, whereas the much less damaged grains in the PNN-PT-glycerol ceramics contribute to their good fatigue performance.
URI: http://hdl.handle.net/10397/23791
ISSN: 0002-7820
EISSN: 1551-2916
DOI: 10.1111/j.1551-2916.2010.04102.x
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