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Crystallization of Y3Al5O12 from an Oxynitride Glass Monitored by High-Temperature X-Ray Diffractometry
Luleå tekniska universitet.
Luleå tekniska universitet.
1996 (English)In: Journal of the European Ceramic Society, ISSN 0955-2219, E-ISSN 1873-619X, Vol. 16, no 11, p. 1263-1269Article in journal (Refereed) Published
Abstract [en]

It is well established that the glassy phase in a β-SiAlON material, with addition of Y2O3, can be crystallized to yttrium aluminium garnet (Y3Al5O12-YAG) by a post-sintering heat treatment. The crystallization of the YAG phase from an oxynitride glass with composition 46·1 wt% Y2O3, 26·3 wt% Al2O3, 21·6 wt% SiO2 and wt% Si3N4 was studied by means of high-temperature X-ray diffractometry. The kinetics of the crystallization were monitored in terms of the (420)) YAG peak area versus isothermal soaking time at 1150 °C during different heat treatments. The crystallization of the YAG phase was found to proceed as a surface crystallization. The results are relevant to developing improved crystallization treatments for glasses with potential for crystallization to YAG-based glass-ceramics and for heat treatments of YAG/β-SiAlON materials

Place, publisher, year, edition, pages
1996. Vol. 16, no 11, p. 1263-1269
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-10786DOI: 10.1016/0955-2219(96)00027-1ISI: A1996VN14700015Scopus ID: 2-s2.0-0003738279Local ID: 9a6864d0-fc8e-11db-b816-000ea68e967bOAI: oai:DiVA.org:ltu-10786DiVA, id: diva2:983733
Note
Godkänd; 1996; 20070507 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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