Paper Title:
Preparation of Pb(Mg1/3Nb2/3)O3 Relaxor Ferroelectric by Sol-Gel Route
  Abstract

Without addition of any thermodynamically stable perovskite compound such as PbTiO3, Pb(Mg1/3Nb2/3)O3 was fabricated by a new sol-gel route, and the processing parameter was studied. The result showed that the chelating effect of ammonium citrate was relatively better than that of citric acid in this system. When the ratio of ammonium citrate to Nb2O5 was 8.33, the colloid of Nb2O5·nH2O was in state of transparency. The effects of heat treatment on the formation of perovskite phase of Pb(Mg1/3Nb2/3)O3 powders were characterized by X-Ray Diffraction (XRD) method. With increasing heat treatment temperature or holding time, pyrochlore phase turned into perovskite phase gradually, and after second calcination, the content of perovskite phase increased significantly from 54% to 72%.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
46-48
DOI
10.4028/www.scientific.net/KEM.336-338.46
Citation
W. Xia, L. H. Xu, H. Zhang, J. J. Song, "Preparation of Pb(Mg1/3Nb2/3)O3 Relaxor Ferroelectric by Sol-Gel Route", Key Engineering Materials, Vols. 336-338, pp. 46-48, 2007
Online since
April 2007
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$32.00
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