Method of producing multifilament lengths of superconductor from ternary chalcogenides of molybdenum

Abstract

The present invention concerns superconductor lengths constituted by superconducting filaments based on a ternary chalcogenide of molybdenum (PbMo.sub.6 S.sub.8) assembled within a stabilizing matrix based on copper. The invention provides a method of fabricating superconducting filaments consisting of mixing a powder of a ternary chalcogenide of molybdenum with a metal powder of smaller granulometry and chosen from the components of the chalcogenide in question, or from the group of metals consisting of aluminum, silver, gallium, rhenium, and titanium, in sheathing the mixture of powders obtained by means of a metal wall constituted from one of a group of metals formed by molybdenum, niobium, tantalum, titanium and vanadium, and in subjecting the superconducting lengths obtained after drawing and cold working using conventional wire drawing techniques to a final heat treatment consisting of heating to a temperature of about 800.degree. C. for at least twenty hours.

Dependencies are inferred from the claim text.