ZHU Xinwen, JIANG Dongliang, TAN Shouhong

( Shanghai Institute of Ceramics, Chinese Academy of Science)

Abstract: The structure, properties and application of porous ceramics are reviewed .The relative density is an important structural property of porous ceramics and almost all properties such as permeability,mechanical properties, thermal properties and electrical properties, can be directly or indirectly expressed by their relative density through equations derived for geometrical representations of the particular cell structure .Porous ceramics are a kind of multi -functional materials and have been widely applied in the metallurgy, chemical engineering, energy system, environment protection, biomedical field and so on .

Keywords: porous ceramics, structure, properties, application, relative density