CHROME-COBALT-YTTRIUM ALUMINIDE AND METHOD OF ITS PRODUCING Russian patent published in 1999 - IPC

Abstract RU 2131947 C1

FIELD: inorganic chemistry. SUBSTANCE: invention relates to new chemical compounds, in part, to chrome-cobalt-yttrium aluminide of the composition: Cr0,195Al0,49Co0,137Y0,178. Method of producing this chemical compound involves smelting of chrome, aluminium, cobalt and yttrium under vacuum at ratio 0.195:0.49:0.137:0.178 at 1550-1625 C in helium medium under pressure 400 mm mercury column by three-fold remelting for 15-20 min, cooling at the rate 20-30 degrees/s and annealing under vacuum at 1000-1050 C for 22-24 h. Compound is used as a material used for plasma cover of heat-resistant alloys. EFFECT: improved method of producing the new compound. 1 tbl

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RU 2 131 947 C1

Authors

Zjazev V.L.

Vatolin N.A.

Kirillov E.A.

Akshentsev Ju.N.

Kopysov V.A.

Farmakovskij B.V.

Dates

1999-06-20Published

1997-06-16Filed