FIELD: physics.
SUBSTANCE: aluminium oxide coating for products with surface of aluminium alloys contains admixtures of high-silica phase, which have maximum linear size 0.1…10 of coating thickness; moreover admixtures at coating surface and/or having interface surface with aluminium base so that total bond area is not less than 80% of admixture area. Production method includes micro-arch oxide formation; to increase wear resistance particles of silica are introduced into surface layer of aluminium before micro-arc oxidisation.
EFFECT: resistance to wear.
3 cl, 1 tbl, 4 dwg, 1 ex
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