Orientational contribution to the piezoelectric constants of BaTiO3 ceramic in ferroelectric phases with various symmetries |
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| Authors: | A G Luchaninov V I Aleshin L A Shuvalov |
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| Institution: | (1) Special Design Bureau “Aurora,”, 400094 Volgograd, Russia;(2) Scientific-Research Institute for Physics at Rostov-on-Don State University, 344082 Rostov-on-Don, Russia;(3) Institute of Crystallography, Russian Academy of Sciences, 117333 Moscow, Russia |
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| Abstract: | A self-consistent method based on the interaction of a piezoelectric sphere with a piezoelectric medium that has anisotropic
elastic and dielectric properties is used to calculate the components of the tensor piezoelectric modulus of BaTiO3 ceramic in all three ferroelectric modifications. A comparison of the calculated and measured piezoelectric moduli shows
that at least 60–70% of the piezoelectric effect in BaTiO3 ceramic is caused by domain boundary movement throughout the entire ferroelectric region.
Fiz. Tverd. Tela (St. Petersburg) 41, 1080–1083 (June 1999) |
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