This communication reports on the preparation and electric properties of dense nanocrystalline ZnO ceramics. By spark plasma sintering, nanocrystalline (∼100 nm) ZnO ceramics with a high density of 98.5% were obtained at a very low temperature of 550°C. Electric property measurement revealed a novel conduction nonlinearity in the sample sintered at 500°C. This phenomenon is due to the nanometerization of ZnO crystal and the grain boundary layer with an amorphous interfacial layer.
|Number of pages||3|
|Journal||Journal of the American Ceramic Society|
|Publication status||Published - 2002 Apr|
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry