Investigation of the dielectric properties and thermal expansion of the ferroelectric ceramic PKR-1 in the phase-transition region

The permittivity and thermal expansion of polarized and unpolarized samples of the ferroelectric ceramic PKR-1 have been investigated in the temperature range 300–700 K. Anomalous behavior of the thermal expansion coefficient is found in the range of ferroelectric phase transitions. The results obta...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2007-05, Vol.71 (5), p.688-690
Main Authors: Kallaev, S N, Gadzhiev, G G, Kamilov, I K, Bilalov, A R, Omarov, Z M, Sadykov, S A
Format: Article
Language:English
Subjects:
Ceramics
Dielectric properties
Ferroelectric materials
Ferroelectricity
Phase transitions
Thermal expansion
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Summary:The permittivity and thermal expansion of polarized and unpolarized samples of the ferroelectric ceramic PKR-1 have been investigated in the temperature range 300–700 K. Anomalous behavior of the thermal expansion coefficient is found in the range of ferroelectric phase transitions. The results obtained are analyzed taking into account the specific features of the structure of polar ceramics.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873807050267