INTERMETALLIDE MATRIX BASED METAL-CERAMIC COMPOSITE MATERIAL AND ITS PRODUCTION METHOD Russian patent published in 2019 - IPC B22F3/15 B22F3/20 C22C19/03 C22C19/05 C22C32/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to the metallurgy, namely to the intermetallic matrix based high-temperature composite materials to provide engines with increased power and life. Metal-ceramic composite material with the Ni₃Al based intermetallic matrix contains, wt. %: Al 8.2–8.8, Cr 4.5–5.5, W 4.4–4.8, Mo 3.2–3.8, Ti 1.0–1.6, Hf 0.4–0.8, Al₂O₃-Y₂O₃ or Al₂O₃-Y₂O₃-HfO₂ 2.0–5.0, Ni is the rest being. Also disclosed is the said material production method, including the intermetallic matrix alloy vacuum induction melting, its spraying on the powder, intermetallic powder and oxide particles mixing in the high-power unit, balling-up and compaction. After that, performing the hot isostatic pressing with subsequent hot extrusion or hybrid spark plasma sintering with subsequent hot isostatic pressing. Invention provides the cermet composite material with high bending strength, by duration in time to failure at 1200 °C, as well as with increased impact strength and short-term tensile strength at room temperature and at 1200 °C with density of less than 8.0 g/cm³.

EFFECT: invention provides the cermet composite material with high bending strength.

6 cl, 6 ex, 2 tbl