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.
Tape casting produces a thin layer of ceramic material by coating a carrier surface thin organic film with a ceramic suspension usually by the doctor blade process.
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 is a well established technique to fabricate ceramic tapes.
Freeze tape casting was developed to enable optimization of the microstructures of porous ceramic components for use as solid oxide electrodes in fuel cells.