Fabrication of Porous Ceramics by Starch Consolidation

A new method of starch consolidation for fabrication of porous ceramics is developed with starch as both binder and pore former.The density of the preparated porous ceramics is estimated at 0.804~1.032g/cm³ and the porosity at 65.6%~73.2%.It is indicated in tests that the ceramic slips exhibits shear-thinning behaviour with a decrease in viscosity as the increasing of rotate speed,and starch content,sintering temperature and holding time have centain effect on the porosity and density of the ceramic.