PRECURSOR FOR NB3SN SINGLE-CORE SUPERCONDUCTING WIRE RODS AND METHOD FOR PRODUCING SAME, NB3SN SINGLE-CORE SUPERCONDUCTING WIRE ROD
A precursor for Nb3Sn single-core superconducting wire includes: a Sn-based wire rod, a first Cu-based tube covering an outer circumferential surface of the Sn-based wire rod, an Nb-based tube covering an outer surface of the first Cu-based tube, and a second Cu-based tube covering an outer surface...
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Main Authors | , , , , , |
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Format | Patent |
Language | English French German |
Published |
09.10.2024
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Subjects | |
Online Access | Get full text |
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Summary: | A precursor for Nb3Sn single-core superconducting wire includes: a Sn-based wire rod, a first Cu-based tube covering an outer circumferential surface of the Sn-based wire rod, an Nb-based tube covering an outer surface of the first Cu-based tube, and a second Cu-based tube covering an outer surface of the Nb-based tube, in which the Sn-based wire rod contains a matrix phase and at least one kind of hard phases that is harder than the matrix phase; and in a cross section parallel to a longitudinal direction of the precursor for Nb3Sn single-core superconducting wire, a maximum dimension of the hard phases in a width direction perpendicular to the longitudinal direction is 50% or less of a minimum dimension in the width direction of the Sn-based wire rod and/or is equal to or smaller than a minimum thickness in the width direction of the Nb-based tube. |
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Bibliography: | Application Number: EP20200895587 |