A Model of Coprecipitation Doping for Preparing ZnO Varistor Ceramic Powders

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A Model of Coprecipitation Doping for Preparing ZnO Varistor Ceramic Powders
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                        GUO Fangfang,LIN Cong,XU Zheng,SUN DanfengGUO Fangfang,LIN Cong,XU Zheng,SUN Danfeng

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Abstract:

This paper presents a study of the precipitation and coprecipitation of the B species ions which can be only complexed with hydroxyl by a numerical stimulation method based on the mechanism of balance on multi-ions reaction. The coprecipitation of A and B species ions is also investigated. The dependences of coprecipitation rate, side reaction rate and pH value on the ammonia contents are exhibited and discussed.

Key words:ZnO varistor; coprecipitation; numerical stimulation

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GUO Fangfang, LIN Cong, XU Zheng, SUN Danfeng. A Model of Coprecipitation Doping for Preparing ZnO Varistor Ceramic Powders[J].同济大学学报(自然科学版),2008,36(1):62~65107

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Received:May 11,2006
Revised:May 11,2006
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