This technique has been usually applied to produce dense substrates for electronic applications but recently there are.
Porous ceramics tape casting.
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.
Tape casting is a well established technique to fabricate ceramic tapes.
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.