Thermal cycling and degradation mechanisms of compressive mica-based seals for solid oxide fuel cells

Improved durability of SOEC stacks for high temperature electrolysis

“…Seal failure often happens after thermal cycles during the tests. Mismatch of coefficient of thermal expansion (CTE) between the seal and other components can cause cracks of the seal [24,25].…”

Characteristics of a SiO2–B2O3–Al2O3–BaCO3–PbO2–ZnO glass–ceramic sealant for SOFCs

“…There are two basic designs for SOFC applications, viz. tubular and planar [2]. Planar designs have significant advantages: including lower cost and higher power densities [3].…”

Y2O3–BaO–SiO2–B2O3–Al2O3 glass sealant for solid oxide fuel cells

“…The remarkable advantage of these sealants is the chemical compositions of the glass that can be tailored to optimize some important physical properties such as matching CTE, appropriate viscosity. So far, most SOFC sealant development has focused on glass or glass-ceramic sealants, although other approaches, such as cement sealants, mica glass-ceramics, brazes and compressive seals, have been proposed [6][7][8][9][10][11][12][13][14].…”