Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1461258 | Ceramics International | 2014 | 7 Pages |
Abstract
The specific features of the microstructure of multicomponent solid solutions, based on relaxor ferroelectrics both unmodified and modified by barium, were observed. A reduction of tetragonal distortion in the unit cell in ceramics containing Ba, as well as an increase in the size of its crystallites (which is a consequence of this reduction), facilitates domain reorientation owing to an increase in their mobility. This is the main reason for the sharp increase in the relative permittivity εT33/ε0 of the poled samples of modified ceramics, and the variations of some parameters that characterize the piezoelectric response.
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Authors
L.A. Reznichenko, V.A. Alyoshin, L.A. Shilkina, M.V. Talanov, S.I. Dudkina,