Cermet material, cermet body and method of manufacture

C - Chemistry – Metallurgy – 25 – C

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75/154, 204/197,

C25C 3/12 (2006.01) C04B 35/65 (2006.01) C22C 1/05 (2006.01) C22C 29/12 (2006.01)

Patent

CA 1298102

CERMET MATERIAL, CERMET BODY AND METHOD OF MANUFACTURE Abstract The present invention provides a ceramic/metal composite material comprising cerium/aluminum mixed oxides as the ceramic phase and an alloy or intermetallic compound of cerium and at least one of aluminum, nickel iron and cobalt as the metal phase. The ceramic phase may comprise interengaged crystal lattices of ceria and alumina. The material may be a self-sustaining body which may be used as substrate for a dimensionally stable anode in molten salt aluminum electrowinning cells, coated with a protective layer of cerium oxyfluoride in situ during electrolysis in molten cryolite containing cerium ions.

544971

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