Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1618721 | Journal of Alloys and Compounds | 2010 | 4 Pages |
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
Authors
Jin Chen, Shaojun Qiu, Xiuli Chen, Guoqing Xiao, Xiaofeng Yang,