A Study on Preparation of Cordierite Porous Ceramics Made from Starch Pore-forming Agent

摘要

The cordierite porous ceramics were made from kaolinite, talc andα-alumina, formed by pressing and fired at 1200°C for one hour. Starch was used as pore-forming agent. Physical/chemical properties and microstructure of products were characterized. The results show that samples exhibit relatively high strength, low coefficient of thermal expansion and well-distributed gradient pores. The pores of samples are homogeneous.