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.
Porous ceramics tape casting.
Tape casting is a well established technique to fabricate ceramic tapes.
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.
Freeze tape casting was developed to enable optimization of the microstructures of porous ceramic components for use as solid oxide electrodes in fuel cells.
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.