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Rapid sintering of crack free zirconia ceramics by pressure less spark plasma sintering
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Materials Chemistry.
2012 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 66, no 11, 899-902 p.Article in journal (Refereed) Published
Abstract [en]

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 degrees 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.

Place, publisher, year, edition, pages
2012. Vol. 66, no 11, 899-902 p.
Keyword [en]
Pressure-less spark plasma sintering, Ceramics, Grain growth, Rapid sintering
National Category
Nano Technology Materials Chemistry
Identifiers
URN: urn:nbn:se:su:diva-79774DOI: 10.1016/j.scriptamat.2012.02.013ISI: 000303621900013OAI: oai:DiVA.org:su-79774DiVA: diva2:551848
Note

AuthorCount:3;

Available from: 2012-09-12 Created: 2012-09-11 Last updated: 2017-12-07Bibliographically approved

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