Sintered Metal Powder Porous Materials via Rolling Sintered metal powder porous materials via rolling use water atomized metal powder as the raw materials and are manufactured through processes such as rolling of metal powder and sintering in hydrogen or vacuum furnaces. The end products often possess good permeability with its pore size and porosity able to be controlled to obtain the desirable range. Theses porous materials also have other properties such as good thermal shock resistance and good regeneration ability.
AT&M/CISRI started the development of this kind of metal porous materials since 1960's. It can produce rolled porous metal products with pore size as small as 0.5 micron from various materials such as stainless steel, super alloys, and nickel. Its products have been widely used for gas/liquid filtration and purification, gas flow distribution control and flow restriction, etc.