Verfahren zur Herstellung von Gegenstaenden mit einer Niob-Zinn-Schicht

1146611 Niobium tin layer IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 23 Aug 1966 [17 Sept 1965] 39724/65 Addition to 1021548 Headings H1A and A4D A method of manufacturing an article having a continuous layer of Nb 3 Sn comprises the steps of electro-phoretically depositing a layer of Sn powder on to a...

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1. Verfasser:	CLIFFORD BARBER,ANTHONY
Format:	Patent
Sprache:	ger
Schlagworte:	APPARATUS THEREFOR CASTING 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 ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING WORKING METALLIC POWDER
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Zusammenfassung:	1146611 Niobium tin layer IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 23 Aug 1966 [17 Sept 1965] 39724/65 Addition to 1021548 Headings H1A and A4D A method of manufacturing an article having a continuous layer of Nb 3 Sn comprises the steps of electro-phoretically depositing a layer of Sn powder on to a layer of Nb (e.g. a Nb wire or tape), and submitting the layers of Sn and Nb to a single heat-treatment at a temperature between 950 and 1600C in a non-oxidizing atmosphere, e.g. in an inert gas or in a vacuum, so as to cause at least some of the Sn to react with at least some of the Nb to form a continuous layer of Nb 3 Sn. In an example, a length of Nb tape was coated by electro-phoresis with a layer of Sn powder from a suspension of tin powder in a stirred liquid mixture containing 50/50 volume per cent nitromethane/isopropyl alcohol solution, 1À1 grams zein per litre, 0À036 grams Al(NO 3 ) 3 per litre and 36 grams of Sn powder per litre. A platinized Ti anode was used at a current density of more than 2 milliamps per sq. cm. on the Nb tape. The resulting composite was heated in vacuo for 20 minutes at 975C.