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Dependences of the tensor components of the piezoelectric moduli, dielectric permittivities and elastic compliances on the volume concentration of 90° domains in the grains and on the temperature have been analyzed for ceramic PbTiO3. Possibilities for realization of the large piezoelectric anisotropy and its temperature variation in the crystals and ceramics of PbTiO3 have been discussed.
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Topolov et al. (1993) studied this question.
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