Process for producing cobalt coated refractory metal carbides

Details Process for producing cobalt coated refractory metal carbides Process for producing cobalt coated refractory metal carbides

1973-09-27

1976-03-30

Kendall, Ralph S.

Coating processes

Immersion or partial immersion

291827, 427437, C04B 3556

Patent

active

039476162

ABSTRACT:
Cemented refractory metal carbides are coated with cobalt to a predetermined thickness by immersing a cemented refractory metal carbide in an aqueous slurry consisting essentially of a cobalt source, a hydrazine compound and a buffering agent to provide a pH greater than 7 and maintaining the temperature of the slurry at from about 65.degree. to 90.degree.C for a sufficient time to achieve the desired thickness of cobalt coating on the external surfaces of the cemented refractory metal carbide.

REFERENCES:
patent: 2979811 (1961-04-01), Toney
patent: 3416955 (1968-12-01), Makowski

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