Reversible permittivity of multicomponent PMN-PT-based ceramics

The reversible permittivity of Ba-doped ceramics of the multicomponent system m PMN- n PNN- y PZN- x PT ( m = 0.1298–0.4844, n = 0.1266–0.4326, y = 0.0842–0.130, x = 0.25–0.40) is studied. The reversible permittivities of cubic, heterophase, and tetragonal ceramics are analyzed under various experim...

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Bibliographic Details
Published in:Technical physics 2013-11, Vol.58 (11), p.1608-1613
Main Authors: Talanov, M. V., Turik, A. V., Reznichenko, L. A.
Format: Article
Language:English
Subjects:
Analysis
Ceramic materials
Ceramics
Classical and Continuum Physics
Physical Science of Materials
Physics
Physics and Astronomy
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Summary:The reversible permittivity of Ba-doped ceramics of the multicomponent system m PMN- n PNN- y PZN- x PT ( m = 0.1298–0.4844, n = 0.1266–0.4326, y = 0.0842–0.130, x = 0.25–0.40) is studied. The reversible permittivities of cubic, heterophase, and tetragonal ceramics are analyzed under various experimental conditions, such as the measuring ac electric field frequency and the time of residence in a dc bias electric field. The transformation of permittivity minima into a plateau and the subsequent disappearance of all anomalies as the lead titanate concentration decreases are assumed to be related to a change in the initial domain structure of the material. A diagram illustrating the dependence of the tunability coefficient on the lead titanate concentration is plotted, and the ceramic compositions that correspond to the characteristic dependences of reversible permittivity are determined.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784213110261