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

Konstantina Lambrinou; Jef Vleugels; Aldo R. Boccaccini

doi:10.1111/j.1551-2916.2006.01430.x

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

Konstantina Lambrinou, Jef Vleugels, Aldo R. Boccaccini

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	590-597
Number of pages	8
Journal	Journal of the American Ceramic Society
Volume	90
Issue number	2
Early online date	12 Jan 2007
DOIs	https://doi.org/10.1111/j.1551-2916.2006.01430.x
Publication status	Published - 1 Feb 2007
Externally published	Yes

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abstract = "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.",

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AU - Boccaccini, Aldo R.

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AB - 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.

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

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