FIELD: process engineering.
SUBSTANCE: invention relates to powder metallurgy. It may be used for producing materials that can efficiently dissipate mechanical power at dynamic loads. Tungsten powder with mean particle size to Fischer making 0.8-3.9 mcm is used to prepare charge composed of W 92.3-Ni 1.3-Cu 6.4 wt %. Sponging agent, ammonium bicarbonate with dispersity lower than 0.071mm, is added to charge for it to be compacted at 150 MPa, max. Then, sponging agent is removed and charge is sintered at 1080-1300°C for 1-2 hours.
EFFECT: produced material features porosity of 55-56%, high compression strength, no crak formation.
2 dwg, 1 ex
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