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Transparent MgAl2O4 ceramic produced by spark plasma sintering
Department of Physical Inorganic and Structural Chemistry, Stockholm University.ORCID iD: 0000-0003-3060-9987
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 MgAl(2)O(4) ceramic without sintering aids by spark plasma sintering (SPS) at 1300 degrees 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 degrees 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
URN: urn:nbn:se:kth:diva-89037DOI: 10.1016/j.scriptamat.2009.03.039ISI: 000266840800022OAI: diva2:502635
QC 20120216Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2012-02-16Bibliographically approved

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Zhao, Zhe
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