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

Abstract:

Article Preview

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 et al., "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

Export:

Price:

$35.00

[1] W.Z. Zhu, A. Kholkin, P.Q. Mantas and J.L. Baptista: J. Euro. Ceram. Soc. Vol. 20 (2000), pp. (2029).

[2] C.E. Li, J.M. Xue, H.Y. Ni and Z.W. Yin: J. Functional Materials and Devices Vol. 2 (1996), p.71.

[3] Z.R. Li, X.L. Wang, L.Y. Zhang and X. Yao: Piezoelectrics & Acoustooptics Vol. 20 (1998), p.135.

[4] S.L. Swartz and T.R. Shrout: Mater. Res. Bull. Vol. 17 (1982), p.1245.

[5] X. Wang, Z.Q. Zhuang and X.J. Qi: Journal of Inorganic Materials Vol. 17 (2002), p.306.

[6] K. Babooram, H. Tailor and Z.G. Ye: Ceram. Inter. Vol. 30 (2004), p.1411.

[7] M. Inada: Japa. Nati. Tech. Rep. Vol. 23 (1977), p.95.

[8] J.S. Kim and N.K. Kim: Mater. Lett. Vol. 57 (2003), p.4525.

[9] F. Lian, L.H. Xu, F.M. Wang, M. Oliveira and F.X. Li: J. Mater. Sci. Lett. Vol. 21 (2002), p.673. Fig. 4 XRD pattern of PMN obtained after 1st and 2nd calcination.

In order to see related information, you need to Login.