Formation of a Metastable Celsian-Cordierite Eutectic Structure During the Crystallization of a Ba-Osumilite Glass-Ceramic

Konstantina Lambrinou, Jef Vleugels, Aldo R. Boccaccini

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3 Citations (Scopus)


This work addresses the formation conditions and stability of a celsian-cordierite eutectic structure produced during the crystallization of a barium magnesium aluminosilicate (BM AS) glass-ceramic with the Ba-osumilite stoichiometry. The melt-derived BMAS glass-ceramic was pulverized and subsequently hot pressed to produce sintered powder compacts, some of which were subjected to post-sintering heat treatments in air. The study of the devitrifled BMAS glass revealed that a metastable celsian-cordierite eutectic structure resulted from the prolonged annealing of the BMAS glass-ceramic between 860° and 1000°C. The celsian-cordierite eutectic structure transformed to the thermodynamically stable Ba-osumilite phase when annealed at temperatures > 1000°C.

Original languageEnglish
Pages (from-to)590-597
Number of pages8
JournalJournal of the American Ceramic Society
Issue number2
Early online date12 Jan 2007
Publication statusPublished - 1 Feb 2007
Externally publishedYes


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