METHOD OF APPLYING IRON-TUNGSTEN COATING ON POWDER OF TECHNICAL CERAMICS Russian patent published in 2016 - IPC C23C16/16 

FIELD: technological processes.

SUBSTANCE: invention relates to application of double-layer metal coatings and can be used for production of wear-resistant coatings when repairing parts by surfacing and spraying. Method of applying iron-tungsten coating on powder technical ceramics by thermal decomposition of vapors, containing iron pentacarbonyl and tungsten hexacarbonyl, is characterised by sequential application on powder particles of adhesion layer from mixture of iron pentacarbonyl and carbon monoxide in volume ratio of vapours 1:5 at temperature of their thermal decomposition of 250 °C, and then surface layer from mixture of tungsten hexacarbonyl and carbon monoxide in volume ratio of vapours 1:5 at temperature of their thermal decomposition of 800 °C.

EFFECT: coating, efficient in optimal operation of combination of values of hardness and strength of adhesion, which improves wear resistance of parts, reconditioned by sputtering and deposition of produced powders.

1 cl, 1 tbl, 1 ex