Process of preparing nickel cermet

Details Process of preparing nickel cermet Process of preparing nickel cermet

1996-07-24

1999-11-30

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75235, 75628, C22C 2912

Patent

active

059935111

ABSTRACT:
A nickel cermet containing a metal nickel phase and an yttria stabilized zirconia phase, is prepared by a process comprising: preparing a suspension of the zirconia in demineralized water; preparing a solution of a nickel salt in demineralized water; mixing the nickel solution and the zirconia dispersion; eliminating the water from the mixture to obtain a solid containing particles of the zirconia covered with the nickel salt; calcining the solid under oxidizing conditions to form particles of the zirconia covered with nickel oxide; and reducing the nickel oxide with hydrogen to nickel metal.

REFERENCES:
patent: 5261944 (1993-11-01), Lockhart et al.
Kiyoshi Okumura, et al., Extended Abstracts, vol. 93/1, pp. 1656 and 1657, Jan. 1, 1993, "Microstructure and Overvoltage Characteristics of the Anode for Solid Oxide Fuel Cells".
Tatsuya Kawada, et al., J. Electrochem. Soc., vol. 137, No. 10, pp. 3042-3047, Oct. 1, 1990, "Characteristics of Slurry-Coated Nickel Zirconia Cermet Anodes for Solid Oxide Fuel Cells".

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