Paper Title:
Electrical Characteristics and Microstructures of (Gd, Dy)-Doped Bi4Ti3O12 Ceramics
  Abstract

The electrical properties of Bi3.25Dy0.75Ti3O12 (BDT) and Bi3.25Gd0.75Ti3O12 (BGT) ceramics were investigated. The current-voltage curve of the BGT sample exhibits a negative differential resistance behavior, whereas that of the BDT sample exhibits a simple ohmic behavior. The impedance spectrum of the BDT and BGT samples indicate that both consist of semiconducting grain and moderately insulating grain boundary regions. XRD, SEM and EPMA analyses reveal crystalline phase characterized by a Bi-layered perovskite structure of Bi4Ti3O12 and the distribution of every element is uniform. Both BDT and BGT samples exhibit randomly oriented and plate-like morphology.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
88-90
DOI
10.4028/www.scientific.net/KEM.368-372.88
Citation
Y.H. Cai, X.A. Mei, M. Chen, K.L. Su, W.K. An, J. Liu, "Electrical Characteristics and Microstructures of (Gd, Dy)-Doped Bi4Ti3O12 Ceramics", Key Engineering Materials, Vols. 368-372, pp. 88-90, 2008
Online since
February 2008
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Price
$32.00
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