Method of Controlling Grain Size of Coprecipitated PbTiO3 Powders

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (7): 1063.

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Method of Controlling Grain Size of Coprecipitated PbTiO₃ Powders

ZHAO Zhen-Guo, CHENG Hu-Min, MA Ji-Ming

Department of Chemistry, Peking University, Beijing, 100871

Received:1993-07-27 Revised:1994-04-07 Online:1994-07-24 Published:1994-07-24

Abstract

Abstract: The effects of ultrasonic dispersion and ageing conditions on the grain size of the coprecipitated PbTiO₃ powders have been studied.The results show that:(1) the grain size and the crystallization temperature were decreased markedly by ultrasonic dispersion;(2) the ageing effects in the solutions of the anionic, cationic and nonionic surfactants were different from each other.As ageing in the solutions of the nonionic surfactants and its mixture, the grain size of PbTiO₃ was decreased.

Key words: PbTiO₃ Powders, Coprecipitation method, Grain size

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ZHAO Zhen-Guo, CHENG Hu-Min, MA Ji-Ming. Method of Controlling Grain Size of Coprecipitated PbTiO₃ Powders[J]. Chem. J. Chinese Universities, 1994, 15(7): 1063.

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Method of Controlling Grain Size of Coprecipitated PbTiO₃ Powders

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