ELECTROSTRICTION IN PB(ZN1/3NB2/3)O3

被引:60
作者
NOMURA, S [1 ]
KUWATA, J [1 ]
JANG, SJ [1 ]
CROSS, LE [1 ]
NEWNHAM, RE [1 ]
机构
[1] PENN STATE UNIV,MAT RES LAB,UNIVERSITY PK,PA 16802
关键词
D O I
10.1016/0025-5408(79)90136-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electrostriction in Pb (Zn 1 3Nb 2 3)O3 crystals has been investigated using a strain gauge method. In the ferroelectric phase below 140 C, the strain vs the electric field shows a hysteresis, which is ascribed to the effect of ferroelectric domains. A quadratic relation holds between the strain x and the electric polarization P as x = QP2 above about 170 C in the paraelectric phase. Values of the electrostrictive Q coefficients are determined from the measurements near 190 C, as Q11 = 1.6·10-2m4/C2, Q12 = -0.86·10-2m4/C2, and Q44 = 0.85·10-2m4/C2. © 1979.
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页码:769 / 774
页数:6
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