6533b7dbfe1ef96bd126ff31

RESEARCH PRODUCT

Features of Thermal Properties of Ferroelectric PLZT Ceramics in the Region of Phase Transition

S. A. SadikovZ. M. OmarovS. N. KallaevJ. BanysK. Bormanis

subject

Phase transitionMaterials scienceThermodynamicsDielectricCondensed Matter PhysicsHeat capacityFerroelectricityThermal expansionElectronic Optical and Magnetic Materialsvisual_artThermalvisual_art.visual_art_mediumCeramicSchottky anomaly

description

A study of specific heat and thermal expansion of PLZT-9/65/35 ceramics in the 150– 800 K range of temperatures is reported. Specific diffused features in behaviour of heat capacity and thermal expansion are revealed in the 250–650 K and 330–550 K range of temperature, respectively, and shown to be the result of the growth and changes of a system of ordering nano-size polarised regions. The features of heat capacity in the 250–650 K range of temperature are found to be related to two-level states (the Schottky anomaly). Obtained results are discussed together with data of structural and dielectric studies.

yearjournalcountryeditionlanguage
2011-01-01Ferroelectrics
https://doi.org/10.1080/00150193.2011.594016