Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 98, Issue 3, Pages 855-860Publisher
WILEY-BLACKWELL
DOI: 10.1111/jace.13379
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Funding
- CAEP [2014B0101002]
- National Natural Science foundation of China [11402242, 11172277]
- National Defense Basic Scientific Program of China [B1520132013-2]
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The charge release and related mechanisms for Pb(In1/2Nb1/2)-Pb(Mg1/3Nb2/3)-PbTiO3 (PIN-PMN-PT) ferroelectric crystals under one-dimensional shock wave compression were investigated using discharge current profile measurement, by which the piezoelectric stress coefficient e(31) and the phase transition (from tetragonal to orthorhombic phase) pressure were obtained, being -2.9C/m(2) and 2.3GPa, respectively. Based on experiment results and thermodynamics analysis, it was found that the one-dimensional shock compression favored ferroelectric phase, being different from the effect of hydrostatic pressure, which favored paraelectric phase. This phenomenon can be attributed to the crystal anisotropy and electromechanical coupling effects as one-dimensional shock compression is applied to PIN-PMN-PT ferroelectric crystals.
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