Article ID Journal Published Year Pages File Type
1499791 Scripta Materialia 2012 4 Pages PDF
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.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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