| Abstract: | Glass is the most recognised material to seal solid oxide fuel/electrolyser cell components. We have developed a SrO‐La2O3‐Al2O3‐SiO2 (SABS‐0) based seal glass with all the desired thermophysical properties and thermochemical stability. In this study, the SABS‐0 seal glass is sandwiched between AISI 441 interconnect alloy and fully stabilised ZrO2 electrolyte for sealing ability evaluation. The sealing performance and the thermal cycling resistance of the tri‐layer assembly are tested by a pressure leakage test with 3–20 K min–1 heating rates for 2,500 h and 100 thermal cycles. The sealing strength is evaluated by a rupture strength test. The results show that the SABS‐0 glass is hermetic for at least 2,500 h and has high rupture strength for solid oxide fuel/electrolyser cell component sealing. The stress state for the tri‐layer assembly has been analysed using three different approaches. |
