Studies on SiO2-BaO-ZnO-(M2O3)x-(B2O3)1-x (M= Al, Mn, Y, La) Based Glass Sealants

Abstract

The present study focuses on development of suitable glass material for SOFC application, which can act as a good sealant and have compatibility with the other components of SOFC. In order to fulfill the desired requirement for glass to be used as a sealing material, a glass series SiO2-BaO-ZnO-(M2O3)x-(B2O3)1-x (M= Al, Mn, Y, La) where x= 0, 0.25, 0.5, 1 has been selected. Glasses of above mentioned series were synthesized using different stoichiometric compositions of constituent oxides. Various experiments were performed to check their suitability. The study includes the development of glasses, their characterization, heat-treatment and study of crystallization kinetics for various phases formed during heat treatment and their compatibility with the other components like interconnect and electrolyte of SOFC.