Study of Hot-Pressed Ba(Ca_<1/3>Nb_<2/3>)O_3-PbZrO_3-PbTiO_3 Ceramics : II. Phase Transition
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Measurements of the dielectric constants, electromechanical coupling coefficients, elastic compliances, spontaneous polarization and linear thermal expansion as functions of the temperature were carried out for tetragonal compositions of ,xBa(Ca_<1/3>Nb_<2/3>)O_3-(1-x)[Pb(Zr_yTi_<1-y>)O_3]. Studies of the dielectric properties and crystal structures under a varying electric field were also made in connection with the phase transition. From these experimental studies, overall characteristics were found to resemble those of PLZT. On the basis of a previously introduced model for PLZT, the nature of the phase change between paraelectric cubic and ferroelectric tetragonal phases is briefly discussed.
- 社団法人応用物理学会の論文
- 1986-08-20
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