Article ID Journal Published Year Pages File Type
1618721 Journal of Alloys and Compounds 2010 4 Pages PDF
Abstract
A relaxor ferroelectric ceramic, 0.80Pb(Mg1/3Nb2/3)O3-0.20PbTiO3 (0.80PMN-0.20PT) with a pyrochlore-free phase, was prepared by using a one-step calcination method. The precursors were prepared by adding an aqueous Mg(NO3)2·6H2O rather than MgO to the alcoholic slurry of PbO, TiO2 and Nb2O5. The TG-DSC and XRD analysis show that the mechanism in this method is different from those of the columbite method. The phase composition and electric properties of these ceramics were researched. For this ceramic, the maximum value of dielectric constant reaches 33 500, the remnant polarization is 19.2 μC/cm2.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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