Effect of Nonstoichiometry on the Structure and Dielectric Properties of PbMg1/3Nb2/3O3–PbTiO3 Ceramics |
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| Authors: | A S Abdulova G M Kaleva S G Prutchenko A G Segalla E D Politova |
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| Affiliation: | (1) (Russian State Scientific Center), Karpov Research Institute of Physical Chemistry, ul. Vorontsovo pole 10, Moscow, 105064, Russia |
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| Abstract: | (1 – x)PbMg1/3Nb2/3O3–xPbTiO3 ceramics with x = 0.20–0.36 were prepared and characterized by x-ray diffraction, microstructural analysis, and dielectric measurements at different temperatures and frequencies. The phase composition, structural parameters, and ferroelectric transition temperatures of the ceramics were determined. The unit-cell volume and transition temperature were shown to decrease with increasing Pb vacancy concentration. |
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