Densification process in undoped zinc oxide
- 1 August 1987
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 2 (4) , 478-484
- https://doi.org/10.1557/jmr.1987.0478
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.Keywords
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