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IEC - 61788-12

Superconductivity - Part 12: Matrix to superconductor volume ratio measurement - Copper to noncopper volume ratio of Nb3Sn composite superconducting wires

active, Most Current
Organization: IEC
Publication Date: 1 June 2013
Status: active
Page Count: 62
ICS Code (Superconductivity and conducting materials): 29.050
scope:

This part of IEC 61788 describes a test method for determining the copper to non-copper volume ratio of Cu/Nb3Sn wires.

The test method given hereunder is applicable to Nb3Sn composite superconducting wires with a cross-sectional area of 0,1 mm2 to 3,0 mm2 and a copper to non-copper volume ratio of 0,1 or more. It does not make any reference to the filament diameter; however, it is not applicable to those superconducting wires with their filament, Sn, Cu-Sn alloy, barrier material and other non-copper portions dispersed in the copper matrix or those with the stabilizer dispersed. Furthermore, the copper to non-copper volume ratio can be determined on specimens before or after the Nb3Sn formation heat treatment process.

The Cu/Nb3Sn wire has a monolithic structure with a round or rectangular cross-section.

Though uncertainty increases, this method may be applicable to the measurement of the copper to non-copper volume ratio of the Cu/Nb3Sn wires whose cross-section and copper to non-copper volume ratio fall outside the specified ranges.

This test method may be applied to other composite superconducting wires after some appropriate modifications.

Document History

61788-12
June 1, 2013
Superconductivity - Part 12: Matrix to superconductor volume ratio measurement - Copper to noncopper volume ratio of Nb3Sn composite superconducting wires
This part of IEC 61788 describes a test method for determining the copper to non-copper volume ratio of Cu/Nb3Sn wires. The test method given hereunder is applicable to Nb3Sn composite...
June 1, 2002
Superconductivity - Part 12: Matrix to Superconductor Volume Ratio Measurement - Copper to Non-Copper Volume Ratio of Nb3Sn Composite Superconducting Wires
A description is not available for this item.

References

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