FIELD: metallurgy.
SUBSTANCE: proposed method consists in precipitation at introduction of starting compounds of aluminium, yttrium and alloying agents in arrester to extract precipitated product and to calcine obtained powder at 1100°C. Note here that precipitation is performed in the presence of fluorine-bearing additive taken in amount corresponding to 1-5% content of fluorine atoms relative to amount of arrester. Arrester represents ammonium bicarbonate. Mixed aqueous solution of aluminium, yttrium and alloying element nitrates are added to said bicarbonate in amount corresponding to molar ratio of ammonium bicarbonate to total amount of metal cations equal to 3.6:1. Thereafter, obtained mix is mixed at the rate of 300-500 rpm to flush precipitated product, to dry is at 100-150°C and to calcine it.
EFFECT: higher efficiency and quality.
5 cl, 1 tbl, 2 ex
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