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Densification process in undoped zinc oxide

Published online by Cambridge University Press:  31 January 2011

K. Kobayashi ,
P. Dordor ,
J. P. Bonnet ,
R. Salmon  and
P. Hagenmuller
K. Kobayashi
Affiliation:
Laboratoire de Chimie du Solide du CNRS, 351, cours de la Libération, 33405 Talence Cedex, France
P. Dordor
Affiliation:
Laboratoire de Chimie du Solide du CNRS, 351, cours de la Libération, 33405 Talence Cedex, France
J. P. Bonnet
Affiliation:
Laboratoire de Chimie du Solide du CNRS, 351, cours de la Libération, 33405 Talence Cedex, France
R. Salmon
Affiliation:
Laboratoire de Chimie du Solide du CNRS, 351, cours de la Libération, 33405 Talence Cedex, France
P. Hagenmuller
Affiliation:
Laboratoire de Chimie du Solide du CNRS, 351, cours de la Libération, 33405 Talence Cedex, France
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Abstract

An original preparation of ZnO is described where the powder is obtained by precipitaton from zinc nitrate in aqueous solution followed by a calcination. Scanning electron microscopy reveals a close relation between the initial density and the morphology of the powder, the latter being also strongly dependent on the calcining conditions. The investigation of the densification process shows the extreme sensitivity of the final density to sintering conditions. A physical model based on the competitive influences of shrinkage and evaporation successfully describes the observed phenomena.

Type
Articles
Information
Journal of Materials Research , Volume 2 , Issue 4 , August 1987 , pp. 478 - 484
Copyright
Copyright © Materials Research Society 1987

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References

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