SONG Jing, ZENG Lingke, SHUI Anze, WANG Hui, LIU Pingan, CHENG Xiaosu, LIU Yanchun

(South China University of Technology, Institute of Material Science and Engineering, GuangZhou510640)

Abstract: Mixed sintering and melting impregnation are the two basic preparation methods for composite heat storage materials,and the spontaneous immersion method  is better for preparation of inorganic/porous composite heat storage  material.Integrated analysis of the principle of spontaneous impregnation,porosity,pore structure and mechanical  properties was conducted on honeycomb ceramic,porous ceramic made by adding pore -forming agents and fibre -einforced  porous ceramic.The fibre-reinforced porous ceramic can be used as composite heat storage materials' matrix,because of its high porosity(95%),fine pore structure and special fracture strength.If used as composite heat storage materials'matrix, the fibre-reinforced porous ceramic can be effectively used to solve low content of phase change materials, melt overflow and poor thermal shock resistance of common porous matrix.

Keywords: Composite Heat Storage Materials,Spontaneous Impregnation Principle,Fibre Porous Ceramic Matrix,Energy Saving