METHOD OF MAKING HIGH-POROSITY CELLULAR MATERIAL Russian patent published in 2013 - IPC B22F3/11 C22C1/08 

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy, particularly, to production of refractory highly porous permeable cellular alloys. It can be used for production of filters, catalyst carriers, noise absorbers, heat exchangers in heat engineering, machine building and chemical industry. High alloy, for example, "Х60Ю20", is ground to average particle size of 0.6-1.4 mcm to be mixed with iron powders in amount of 30 wt % and additionally added ultra dispersed cobalt in amount of 1.5-2.0 wt % and those of nanosized nickel in amount of 0.5-0.6 wt % as a precursor in the mixer for 24-32 h to obtain mix of powders with relative density 0f 0.5-0.6. Obtained mix is mixed with organic mixer to obtain suspension to be applied on porous material. Organic matters are removed at exposures at T=270-280°C for at least 2 hours. Sintering is performed for at least 2 hours at T=1280°C in heating for at least 32 hours and cooling for at least 24 hours.

EFFECT: higher efficiency.

3 cl, 1 ex