Development of glass ceramic sealants with ceramic fiber filler for solid oxide fuel cells

High operating temperatures of solid oxide fuel cell bring along advantages such as high efficiency and reaction kinetics, but also limit the choice of material. For this reason, due to the atomic structure of hydrogen fuel, the sealing material stands out as one of the important components to be studied. In this thesis, studies on the development of ceramic fiber reinforced glass-ceramic sealing material for solid oxide fuel cells are carried out. In this context, it is aimed to improve the thermal cycling performance of glass-ceramic sealing manufactured by tape casting method through adding ceramic fiber as a reinforcement material. The thermal cycling and tensile tests confirm that the glass-ceramic sealant, which exhibits good thermal cycling performance compared to other sealing elements, offers a longer lifespan and better mechanical strength with the addition of ceramic fiber.