Honeycomb ceramics is one kind of industrial porous ceramics, many passable parallel channels are ramified over its inside. Each individual part made up of these honeycomb ceramics are constructed into the shape with square cells at two ends. Of which the materials are cordierite(2MgO·2Al2O3·5SiO2), aluminum titanate(Al2TiO5), mullite(3Al2O3·2SiO2), alumina(Al2O3) and some other compound materials. Compared with ordinary ceramic materials, they are characterized by low heat expansion ratio, high thermal shock resistance, large specific surface area, anticorrosion etc.

Honeycomb ceramics are used in the automobile as carrier, owing to its large specific surface area. Being able to be coated with the active catalytic components of precious metal, honeycomb ceramics are suitable for fabricating emission catalytic converter in diesel or gasoline vehicle to get through emission such as CO, NOx and hydrocarbon etc. after purified.
Honeycomb ceramics are applied to NOx-removing systems for purifying the flue gas of the boiler firing coal at power plant, to harmful smog cleaning systems in combusting mass rubbish abroad. By the same token, honeycomb ceramics as carrier are generally utilized in chemical and mining industry for purifying noxious gas.

The heat storage burners in metallurgical industry are recommended strongly fitted with honeycomb ceramics as heat storage body, by the advantage of large specific surface area, small heat resistance, good thermal conductivity, excellent thermal shock resistance, realize quickly exchanging heat, reducing energy in the strict sense. In addition, honeycomb ceramics have significant use in filtering molten metal of special steel.
In the field of mass transfer and separation in chemical and petroleum industry, the honeycomb ceramics structured packing is more efficient than the corrugated packing in improving uniform distribution of liquid, improving separation efficiency, solving amplifying effect, reducing resistance of packing stages and improving production efficiency etc. Those like fuel gas stoves adopt thinner honeycomb ceramics spacer covering on the fire mouth so that heat can be evenly distributed further to improve the energy saving.