Jpn. J. Appl. Phys. 20 (1981) Supplement 20-4 pp. 75-78  |Previous Article| |Next Article|  |Table of Contents|
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3rd Meet. Ferroelectric Materials and Their Applications, Kyoto, 1981

Electrical and Optical Properties of Hot-Pressed A(A_1/3'Nb_2/3)O₃-PbZrO₃-PbTiO₃ (A=Ba, Sr, A'=Pb, Ca, Sr) Ceramics

Masaru Yokosuka, Shinsuke Miura, Tsutomu Ochiai and Masakazu Marutake¹

Investigations have been made on the hot-pressed ceramics of the solid solution xA(A_1/3'Nb_2/3)O₃–(1-x)[(Pb(Zr_yTi_1-y)O₃], where A=Ba or Sr, A'=Pb, Ca or Sr. Curie temperatures, lattice constants, dielectric constants and electromechanical coupling coefficients have been determined as a function of x for various systems near the tetragonal-rhombohedral morphotropic phase boundary. Polished specimens in the compositional range 0.10<x<0.20 and 0.40<y<0.60 have been found to have high optical transmittance and to show pronounced electrooptic effects. The phase diagram of the system Ba(Sr_1/3Nb_2/3)O₃–PbZrO₃–PbTiO₃ has been also studied and the existence of the intermediate phase, which is likely to be antiferroelectric, has been confirmed.

URL: http://jjap.jsap.jp/link?JJAPS/20S4/75/