기포탑반응기에서 가스 SENSOR 재료인 PZT 분말의 합성(I)

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A synthesis process for PZT powder using NH<TEX>$_3$</TEX> gas as a precipitator in a bubble column reactor was experimentally successful in develope a production process of Piezoelectric ceramic PZT powder. Also as a reaction by coprecipitation, the crystalized PZT ceramic powder at the condition of over pH 9 could be attained. The time needed for reaction on the condition of NH<TEX>$_3$</TEX> gas flow rate=0.5 1/min, Ar gas flow rate=2.0 1/min, Feed flow rate=2.33 ml /sec was less than five minutes, so it could synthesize PZT powder for such a few moments. And the synthesized PZT powder was 0.17<TEX>${\mu}{\textrm}{m}$</TEX> in diameter on an average.