FORMATION OF OXIDE COATING ON SURFACE OF A MAGNETIC COBALT NICKEL ALLOY

1298536 Forming oxide films on Co-Ni alloys NATIONAL CASH REGISTER CO 6 July 1971 [23 July 1970] 31550/71 Heading C7U [Also in Division B2] A Co-Ni alloy containing at least 3% by weight of Ni is oxidized by contact with a solution containing an oxidizing agent and at least 0À1%, by weight of the so...

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Hauptverfasser:	STONE, ELIOT, PATEL, PRAVIN K
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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creator	STONE, ELIOT PATEL, PRAVIN K
description	1298536 Forming oxide films on Co-Ni alloys NATIONAL CASH REGISTER CO 6 July 1971 [23 July 1970] 31550/71 Heading C7U [Also in Division B2] A Co-Ni alloy containing at least 3% by weight of Ni is oxidized by contact with a solution containing an oxidizing agent and at least 0À1%, by weight of the solution of a chelating agent, and then heating to 230 to 280C in oxygen and/or an inert gas. The oxidizing agent may be nitric acid, hydrogen peroxide, chlorates, hypochlorites or permanganates. The chelating agent may be E.D.T.A., tartaric, gluconic, succinic or citric acids or thiourea. The surface may be subsequently coated with wax or silicone or petroleum oil.
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The oxidizing agent may be nitric acid, hydrogen peroxide, chlorates, hypochlorites or permanganates. The chelating agent may be E.D.T.A., tartaric, gluconic, succinic or citric acids or thiourea. 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The oxidizing agent may be nitric acid, hydrogen peroxide, chlorates, hypochlorites or permanganates. The chelating agent may be E.D.T.A., tartaric, gluconic, succinic or citric acids or thiourea. 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The oxidizing agent may be nitric acid, hydrogen peroxide, chlorates, hypochlorites or permanganates. The chelating agent may be E.D.T.A., tartaric, gluconic, succinic or citric acids or thiourea. The surface may be subsequently coated with wax or silicone or petroleum oil.</abstract><oa>free_for_read</oa></addata></record>
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subjects	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
title	FORMATION OF OXIDE COATING ON SURFACE OF A MAGNETIC COBALT NICKEL ALLOY
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