| 摘要 |
1163703 Coating with metals SIEMENS AG 6 Feb 1968 [16 March 1967] 5959/68 Headings H1A A5 and A4D A metal support, such as an Ni-Mo alloy strip or wire, is coated with an inter-metallic compound which is potentially super-conducting, such as Nb3Sn contacting the heated support with hydrogen gas and a gaseous chloride or bromide of a metal of the compound, such as Nb, then contacting it with hydrogen gas and a gaseous chloride or bromide of each of the metals of the compound. The initial layer of Nb may be 1-3Á thick, and the support may be rotated during deposition, or be passed continuously through successive coating chambers in which the deposition steps occur. The support may be heated by contact heaters, or by passing an electric current through it, and is preferably maintained at 800-1100 C. Nb and Sn chlorides may be made by chlorination of the metals adjacent to the coating apparatus.
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