Temperature dependence of piezoelectric properties for relaxor-ferroelectric solid solutions undergoing a rhombohedral to tetragonal phase transition

The piezoelectric properties of rhombohedral relaxor-ferroelectric compositions close to morphotropic phase boundary have been studied as a function of temperature. As they exhibit, upon heating, a rhombohedral to tetragonal phase transition the piezoelectric behavior changed with temperature. Large piezoelectric (d(33)) and coupling (k(33)) coefficients of 0.91 Pb(Zn1/3Nb2/3)O-3-0.09PbTiO(3) single crystals drop to usual ceramic values after crossing the transition. Intrinsic and reversible contributions to the piezoelectric response reach a maximum at transition for 0.50PNN-0.16PZ-0.34PT. The influence of poling temperature on extrinsic contributions through possible structural changes was demonstrated.


Published in:
Ferroelectrics, 224, 1-4, 525-532
Year:
1999
ISSN:
0015-0193
Keywords:
Note:
Robert, G Swiss Fed Inst Technol, EPFL, Lab Ceram, CH-1015 Lausanne, Switzerland Swiss Fed Inst Technol, EPFL, Lab Ceram, CH-1015 Lausanne, Switzerland
222NX
Times Cited:0
Cited References Count:9
Laboratories:




 Record created 2006-08-21, last modified 2018-03-17


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