Coalescence and Crystallization in Powdered High-Cordierite (2MgO·2Al2O3·5SiO2) Glass

Coalescence and Crystallization in Powdered High-Cordierite (2MgO·2Al2O3·5SiO2) Glass

Coalescence and crystallization in powdered high‐cordierite glass were investigated by DTA, SEM, and XRD methods, using also thermal expansion and viscosity data. The apparent activation energy for crystallization obtained from the DTA experiments was about half that for viscous flow estimated from...

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Veröffentlicht in:Journal of the American Ceramic Society 1985-04, Vol.68 (4), p.C-102-C-103
Hauptverfasser: Watanabe, Koichi, Giess, Edward A.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Exact sciences and technology
Glass-ceramics
Glasses
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Zusammenfassung:Coalescence and crystallization in powdered high‐cordierite glass were investigated by DTA, SEM, and XRD methods, using also thermal expansion and viscosity data. The apparent activation energy for crystallization obtained from the DTA experiments was about half that for viscous flow estimated from the viscosity. Crystallization in such a system is believed to be controlled by a surface nucleation mechanism.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1985.tb15307.x