Through alignment and grading of pores one can tailor surface areas and diffusion channels for flows of gas and liquid species involved in fuel cell reactions.
Porous ceramics tape casting.
Several techniques have been used to fabricate porous ceramics such as slip casting 14 organic foam impregnation 15 extrusion 16 tape casting 1 and direct foaming 17.
Tape casting of porous materials tape casting is a standard shaping technique used to produce flat ceramic sheets with a thickness range varying between 10 μm to 1 mm.
Conversely the tape casting is one of the main methods not only to produce dense thin ceramics and lately also for obtaining porous ceramic bodies 21.
Freeze tape casting was developed to enable optimization of the microstructures of porous ceramic components for use as solid oxide electrodes in fuel cells.