Abstract
The microstructure, electrical property and strain performances of the Pb0.97La0.02(Zr0.775-xSn0.145+xTi0.08)O3 (PLZT) antiferroelectric ceramics which were prepared by conventional solid state synthesis (CSS), hot-pressing sintering (HP), aqueous gelcasting assisted solid state sintering method (GASS) and aqueous gelcasting assisted hot-pressing sintering (GAHP) method were compared and investigated systematically. Compared with the ceramic obtained by CSS, Pb0.97La0.02(Zr0.66Sn0.26Ti0.08)O3 ceramic prepared by timesaving HP showed higher density and more homogeneous microstructure, whose saturated polarization (Ps) and maximum longitude strain (Smax) were 42 μC/cm2 and 0.45% respectively. Finally, aqueous gel-casting assisted method was used to develop the microstructure, electrical property and strain properties of materials. Pb0.97La0.02(Zr0.70Sn0.22Ti0.08)O3 ceramic obtained by more cost-effective GASS (Ps = 40 μC /cm2, Smax = 0.47%) exhibited 37.5% larger in saturated polarization and 36.2% higher in maximum longitude strain than by CSS.
Published Version
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