Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499791 | Scripta Materialia | 2012 | 4 Pages |
Abstract
Heating of a ceramic green body is a key step in sintering. We have created inside a spark plasma sintering apparatus pressure-less sintering conditions that allow homogeneous and extremely rapid heating. Dense and crack-free zirconia ceramic was sintered at heating rates of up to 500 °C min-1 and dwell times of 2 min. This extremely fast sintering process is accompanied by extremely rapid grain growth, indicating a non classical sintering mechanism. No grain size gradients were observed inside the sintered zirconia ceramics.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
David Salamon, Karel Maca, Zhijian Shen,