Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498632 | Scripta Materialia | 2014 | 4 Pages |
Abstract
An existing defect model for dynamic grain growth is modified in order to incorporate the role of grain-boundary sliding on the generation of defects during sintering. On the basis of the concept of enhanced defect generation, the unusual grain growth of alumina during spark plasma sintering is discussed in correlation with the densification caused by grain-boundary sliding. The modified model explains well the experimentally observed dependence of grain size on pressure, heating rate and loading schedule.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Byung-Nam Kim, Keijiro Hiraga, Koji Morita, Hidehiro Yoshida, Young-Jo Park, Yoshio Sakka,