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Transparent MgAl2O4 ceramic produced by 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).
2009 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 61, no 2, 193-196 p.Article in journal (Refereed) Published
Abstract [en]

A two-step pressure profile was used to prepare transparent MgAl2O4 ceramic without sintering aids by spark plasma sintering (SPS) at 1300 °C for 3 min. The influence of the pressure profile was investigated systematically and the discoloration in the present study was attributed to the dislocation formed during the fast densification in SPS. At low pre-load pressure, 5 MPa, with the normal characteristic fast heating rate (100 °C min−1), high inline transmittance of 51% at 550 nm and 85% at 2000 nm can be achieved.

Place, publisher, year, edition, pages
2009. Vol. 61, no 2, 193-196 p.
Keyword [en]
Sintering; Oxide; Optical transmission; Dislocation; Ultrafine-grained microstructure
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-50380DOI: doi:10.1016/j.scriptamat.2009.03.039ISI: 000266840800022OAI: oai:DiVA.org:su-50380DiVA: diva2:381229
Available from: 2010-12-25 Created: 2010-12-25 Last updated: 2017-12-11Bibliographically approved

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