Porous SiC ceramics with different pore structures were made using a special gelling agent and a foam stabilizer. By changing the amount of foam stabilizer and the speed of mixing, the ceramics had varying levels of open spaces and strength. Increasing the foam stabilizer amount made the bubbles more stable but reduced the porosity. Faster mixing created more open spaces in the ceramics. Higher sintering temperatures also affected the porosity and strength of the ceramics.