The paper concerns the commercial BAS (BaO . Al2O3. SiO2)-glass AF45 from t
he Fa. DESAG, Germany, and reports an investigation to test the suitability
as sealing glass for the SOFC. Importantly the crystallization behaviour i
s characterized A crystallization of the sealing glasses is necessary to fu
lfil the high requirements for joining. Samples are screen printed films wi
th addition of MgO. The glass AF45 is a slowly crystallizing glass. In gene
ral the crystallization rate can be regulated within wide limits by means o
f MgO addition. (C) 1999 Elsevier Science Limited. All rights reserved.