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BAS (BaO Al2O3 SiO2) glasses for high temperature applications

BAS (BaO Al2O3 SiO2)-Gläser für Hochtemperatur-Anwendungen
: Eichler, K.; Solow, G.; Otschik, P.; Schaffrath, W.


Journal of the European Ceramic Society 19 (1999), pp.1101-1104
ISSN: 0955-2219
Journal Article
Fraunhofer IKTS ()
films; joining; x-ray methods; glass ceramics; fuel

The paper concerns the commercial BAS-glass AF45 from the Fa. DESAG, Germany, and reports an investigation to test the suitability as sealing glass for the SOFC. Importantly the crystallization behaviour is characterized. A crystallization of the sealing glass is necessary to fulfil the high requirements for joining. Samples are screen printed films with addition of MgO. The glass AF45 is a slowly crystallizing glass. In general the crystallization rate can be regulated within limits by means of MgO addition.