Three dimensional network Al2O3/ZL102 porous ceramics composites were prepared by infiltration process.The porosity

permeability coefficient and carrying capacity of the samples were measured.The interface of metal/ceramics and the morphology of pore inside the ceramic skeleton were observed by SEM（scanning electron microscopy）.Effects of infiltration parameters on the porosity and permeability coefficient of the porous composites were investigated.The results indicate that the porosity is increased with the increase of ceramic preforms pore density

and decreased with increase of infiltration temperature and pressure.In addition

the permeability coefficient of porous materials is increased with porosity increase.With a higher permeability coefficient

the carrying capacity of the sample is increased accordingly.