METHOD FOR CONTROLLING PORE OF POROUS BODY BY FREEZE CASTING AND POROUS BODY MANUFACTURED THEREBY

摘要

A method for controlling air bubble of pore by using freeze casting is provided to control a pore size of pore, porosity and wall thickness using a simple method for controlling only a content of precursor or the freezing temperature. A method for controlling air bubble of pore by using freeze casting comprises steps of: comprising the raw material consisting of precursor, dispersing agent and freeze media; dispersing the precursor and the dispersing agent into the freeze media over a frozen temperature by using the raw material and manufacturing slurry; pouring slurry into a mold and freeze-casting the slurry at specific temperature below the frozen temperature; and removing the frozen media through freeze-drying and sublimation or melting.