Effect of CeO2 on dielectric, ferroelectric and piezoelectric13; properties of PMNx2013;PT (67/33) compositions

Sahoo, B and Panda, PK (2007) Effect of CeO2 on dielectric, ferroelectric and piezoelectric13; properties of PMNx2013;PT (67/33) compositions. Journal of Materials Science, 42. pp. 4745-4752.

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Abstract

Lead magnesium niobatex2013;lead titanate13; [Pb(Mg1/3Nb2/3)O3x2013;PbTiO3] powders doped with different13; mole % of CeO2 were prepared by a modified columbite13; route with compositions corresponding to morphotropic13; phase boundary (MPB) region. These powders were calcined13; at 800 C for 4 h and circular test specimens were13; prepared by uniaxial pressing. The specimens were sintered13; at 1150 C/2 h, poled at 2 kV/mm d.c. voltage and were13; characterized for dielectric, ferroelectric and piezoelectric13; properties. It was observed that the piezoelectric and ferroelectric13; properties initially increase up to 2 mol% of13; ceria addition and then decrease with increase in ceria13; concentration. The diffusivity of the dielectric curves increases13; with increase in ceria concentration. The decrease13; in Curie temperature was observed from 173 C corresponding13; to pure PMNx2013;PT to a temperature of 138 C for13; 10 mol% of ceria addition.

Item Type:	Article
Additional Information:	Copyright for this article belongs to Springer Science
Uncontrolled Keywords:	Electrostrictive properties;Piezoelectric properties;dielectric properties
Subjects:	CHEMISTRY AND MATERIALS > Composite Materials CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User:	Ms. Alphones Mary
Date Deposited:	02 Mar 2009
Last Modified:	17 Jun 2010 08:56
URI:	http://nal-ir.nal.res.in/id/eprint/4999

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