Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1474526 | Journal of the European Ceramic Society | 2011 | 5 Pages |
Abstract
Self-standing samples made of isostatically pressed powders of ZrO2:8 mol% Y2O3 were submitted to AC signals of 60 and 1000 Hz. At temperatures of around 900 °C, a current density exceeding approximately 100 mA/cm2 starts an avalanche process with a fast increasing current under constant voltage. It lasts about 60 s and it is preceded by an induction period of the order of 30 s. After that, the material is sintered as confirmed by impedance diagrams. Relative densities of 94% could be obtained.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Reginaldo Muccillo, Michel Kleitz, Eliana N.S. Muccillo,