... large surface area, good heat stability Honeycomb ceramic heat media,as the media of heat storage and heat exchange,has been ... the fields of metallurgy,petroleum and chemical industry,electric power,boiler and so on,honeycomb ceramic heat media are made of corundum ... ,cordierite,mullite,zirconia-mullite,carborundum and so on with different hole shapes,such as square hole and hexagon hole,different wall ...