Author： Sahoo Benudhar Panda Prasanta
Publisher： Springer Publishing Company
ISSN： 0022-2461
Source： Journal of Materials Science, Vol.42, Iss.13, 2007-07, pp. : 4745-4752
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Lead magnesium niobate–lead titanate [Pb(Mg1/3Nb2/3)O3–PbTiO3] powders doped with different mole % of CeO2 were prepared by a modified columbite route with compositions corresponding to morphotropic phase boundary (MPB) region. These powders were calcined at 800 °C for 4 h and circular test specimens were prepared by uniaxial pressing. The specimens were sintered at 1150 °C/2 h, poled at 2 kV/mm d.c. voltage and were characterized for dielectric, ferroelectric and piezoelectric properties. It was observed that the piezoelectric and ferroelectric properties initially increase up to 2 mol% of ceria addition and then decrease with increase in ceria concentration. The diffusivity of the dielectric curves increases with increase in ceria concentration. The decrease in Curie temperature was observed from 173 °C corresponding to pure PMN–PT to a temperature of 138 °C for 10 mol% of ceria addition.
Related content
Access to resources
Recommend
The effect of rare earth CeO 2 on microstructure and properties of in situ TiC/Al-Si composite
By Liu Y. Xu B. Li W. Cai X. Yang Z.
Materials Letters, Vol. 58, Iss. 3, 2004-01 ,pp. :