Metal treatment – Compositions – Heat treating
Patent
1985-12-18
1987-06-09
Silverberg, Sam
Metal treatment
Compositions
Heat treating
148 620, C23C 2270
Patent
active
046718249
ABSTRACT:
Process for producing zirconium oxide blue-black coatings on zirconium alloy substrates by treating said alloys with molten salts containing small amounts of oxidizing compounds. The molten salts are sodium cyanide and combinations of sodium chloride and potassium chloride.
REFERENCES:
patent: 2987352 (1961-06-01), Watson
Anderson, "Electrochemical Technology", 1966, vol. 4, No. 3-4, pp. 157-162.
Silverberg Sam
Teledyne Industries Inc.
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