PRODUCTION OF EROSION- AND HEAT-RESISTANT COATINGS Russian patent published in 2014 - IPC C23C4/04 

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy. Proposed method comprises plasma spraying of nichrome sublayer and cermet compounds of mechanical powder mix containing 50-80 wt % of zirconium dioxide and 50-20 wt % of the powder of aluminium-clad nickel with dispersity of 63-125 mcm. Cermet compound is fed to plasma jet at plasmatron under nozzle edge in direction of its displacement relative to sprayed surface. Zirconium powder is used that contains yttrium oxide in amount if 8-12 wt % as stabilizing additive.

EFFECT: 1,5-2-fold increase in coating adhesion.

1 tbl, 1 ex