Dielectric Properties and Phase Transition Temperature of PMN-BT Ceramics

Abstract

Abstract: The dielectric properties of PMN-BT solid solution ceramics were systematically studied. The change of the transition temperature
with composition is in the form of “U” curve and the possible cause may be existing of paraelectric phase Ba(Mg_1/3Nb_2/3)O₃
in PMN-BT ceramics. The effects of composition on dielectric relaxation for PMN-BT ceramics were studied. With increasing BT content,
dielectric relaxation of PMN-BT ceramics was increasing first, then decreasing. The characteristics of phase transition temperature of
the ferroelectric solution composed of two perovskite compound were also discussed.

Key words: lead magnesium niobate, barium titanate, dielectric properties, transition temperature

CLC Number:

TM22

LI Zhen-Rong,LI Qi,ZHANG Liang-Ying,YAO Xi. Dielectric Properties and Phase Transition Temperature of PMN-BT Ceramics[J]. Journal of Inorganic Materials.

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Dielectric Properties and Phase Transition Temperature of PMN-BT Ceramics

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