Densification Technology of Al_2O_3/Fe Metallic Ceramic Materials Prepared via Powder Metallurgy Method

摘要

Metallic ceramic materials while maintaining the excellent properties of ceramic materials, but also have the advantages of a metal material, is an important new engineering materials. Iron-based composite applications broad, but not high abrasion resistance, wear-resistant engineering parts for such restrictions, in order to improve the wear resistance of the iron-based composite materials and lower production costs, Al_2O_3/Fe metallic ceramic materials were prepared by powder metallurgy method in this paper, the effect of preparation technology on the properties of Al_2O_3/Fe metallic ceramic materials can be investigated, which includes all the molding and sintering process parameters. Through the results and analysis, the density of the best organized, namely 4.38g/cm~3, prepared with 25wt% of Al_2O_3 powder, 75wt% of Fe powder, the molding pressure of 30MPa, holding time pressure of 10min, atmospheric sintering at 1000°C parameters.