Abstract

Conditions for formation of perovskite Pb(Zr 0.52 Ti 0.48 )O₃ phase by the hydrothermal synthesis are investigated. Pb(Zr 0.52 Ti 0.48 )O₃ ceramics were synthesized by hydrothermal process above 180℃ for 2 h reaction using 5~30 M KOH solution as a mineralizer. Particle size increases in proportion to the mineralizer concentration. As a result of EDX analysis, PZT powders synthesized using 50 M of KOH as a mineralizer were considered as 2.42 mol% K doped-PZT powders. And 2.42 mol% K doped-PZT has much higher mechanical quality factor than undoped PZT ceramics. The sintering properties showed 7.987 g/㎤ of sintered density and 3~4 ㎛ of grain size.

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