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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 1    February 2001

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Preparation of ZnO crystal by sol-gel method
CHEN Jian-xun(陈建勋)1,HUANG Bai-yun(黄伯云)1, ZHAO Rui-rong(赵瑞荣)2

1. State Key Laboratory for Powder Metallurgy, Central South University,
Changsha 410083, P.R.China;
2. Institute of Metallurgy Physical Chemistry and New Chemical Materials,
Central South University, Changsha 410083, P.R.China

Abstract: A new method to prepare ZnO crystal was put for, ward. The preparation process was studied and the mechanism of this method was also discussed. The results show that the sol particles will aggregate when being dehydrated and will form into hard compact gel body through the hard agglomeration between particles. This dry gel is a hard compact agglomeration composed of the first sol particles. At high sintering temperature, the small compacted particles will easily grow up and form a fine ZnO crystal.

 

Key words: ZnO; sensitive ceramics; crystal; sol-gel

ISSN 1672-7029
CN 43-1423/U

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