DIELECTRIC PROPERTIES OF (1–x)(NaBi)1/2TiO3–xBiCoO3 PEROVSCITE FERROELECTRIC CERAMIC
Abstract
The solid solutions with the rhombohedral distorted perovskite structure of the (1–x)(NaBi)1/2TiO3–xBiCoO3 system (x < 0.2) have been prepared by solid state reactions. The unit cell parameters aH and cH for these perovscites were found to increase linearly with increasing x. The dielectric properties of the solid solutions undergo a diffuse ferroelectric phase transition at 590–610 K. For compositions with x < 0.05, the transition to relaxor state at a temperature below 500 K was observed. At x > 0.05 such a transition was not revealed.
About the Authors
Yu. V. Radyush
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus, Minsk
Belarus
Belarus
N. M. Olekhnovich
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus, Minsk
Belarus
Belarus
A. V. Pushkarou
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus, Minsk
Belarus
Belarus
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