Abstract
In this paper, Pb 3O 4, rather than conventional PbO, was introduced in the solid phase synthesis of (Pb 0.92La 0.08)(Zr 0.35Ti 0.65) 0.98O 3 (PLZT) ceramics. The microstructure and electrical properties of the PLZT ceramics were investigated. Results showed that due to the activity of Pb 3O 4, pyrochlore phase PLZT was depressed effectively. The PLZT ceramics with 5.0 wt.% excess Pb 3O 4 in the original materials had a well-crystallized pure perovskite structure when being sintered at 1100 °C for 6 h. In addition, the amount of Pb 3O 4 had an influence on the electrical properties of the PLZT ceramics. Residual polarization as high as 36.9 μC/cm 2 was obtained from the samples with 5.0 wt.% excess Pb 3O 4.
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