Paper Title:
Effects of La-Dopant on Phase, Microstructure and Dielectric Properties of Bi4Ti3O12 Ceramics
  Abstract

Bi4-xLaxTi3O12 (where x = 0, 0.25, 0.50, 0.75 and 1) powders and ceramics were prepared using conventional solid state reaction and sintering procedures. The calcination was carried out at 750 °C for 4 h and sintering was done at 1150 °C for 4 h. The density of all ceramics was found to be comparable regardless of La concentration. X-ray diffraction analysis showed that preferred orientation of ceramic grains was reduced with addition of La ions. This reduced preferred orientation was accompanied by a decrease in grain size. The temperature dependence of dielectric constant showed a decrease in Tc with increasing La concentration.

  Info
Periodical
Advanced Materials Research (Volumes 93-94)
Edited by
S. Suttiruengwong and W. Sricharussin
Pages
251-254
DOI
10.4028/www.scientific.net/AMR.93-94.251
Citation
P. Siriprapa, A. Watcharapasorn, S. Jiansirisomboon, "Effects of La-Dopant on Phase, Microstructure and Dielectric Properties of Bi4Ti3O12 Ceramics", Advanced Materials Research, Vols. 93-94, pp. 251-254, 2010
Online since
January 2010
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