Electrical Characteristics and Microstructures of Eu2O3-Doped Bi4Ti3O12 Ceramics

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The electrical properties of Eu-doped bismuth titanate,Bi4-xEuxTi3O12 (BET) ceramics prepared by a conventional electroceramic technique were investigated. XRD analyses revealed Bi-layered perovskite structure in all samples. SEM micrographs showed randomly oriented and plate-like morphology. For the samples with x=0.4 and 1.0 the current-voltage characteristics exhibited negative differential resistance behaviors and their P-V hysteresis loops were characterized by large leakage current, whereas for the samples with x=0.6 and 0.8 the current-voltage characteristics showed simple ohmic behaviors and their P-E hysteresis loops were the saturated and undistorted hysteresis loops. The remanent polarization ( Pr ) and coercive field (Ec) of the BST ceramic with x=0.8 were above 16μC/cm2 and 70KV/cm , respectively.

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Periodical:

Edited by:

Yiwang Bao, Danyu Jiang, Li Tian and Jianghong Gong

Pages:

210-213

DOI:

10.4028/www.scientific.net/KEM.492.210

Citation:

M. Chen et al., "Electrical Characteristics and Microstructures of Eu2O3-Doped Bi4Ti3O12 Ceramics", Key Engineering Materials, Vol. 492, pp. 210-213, 2012

Online since:

September 2011

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$35.00

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