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  • BSI
    BS EN 61788-12:2013 Superconductivity - Matrix to superconductor volume ratio measurement. Copper to non-copper volume ratio of Nb3Sn composite superconducting wires
    Edition: 2013
    $435.35
    / user per year

Description of BS EN 61788-12:2013 2013

IEC 61788-12:2013 describes a test method for determining the copper to non-copper volume ratio of Cu/Nb 3Sn wires. The test method given hereunder is applicable to Nb 3Sn composite superconducting wires with a cross-sectional area of 0,1 mm 2 to 3,0 mm 2 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 Nb 3Sn formation heat treatment process. The Cu/Nb 3Sn 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/Nb 3Sn 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. This second edition cancels and replaces the first edition published in 2002. It constitutes a technical revision. The main revision is the addition of two new annexes, "Uncertainty considerations" and "Uncertainty evaluation in the test method of the copper to non-copper volume ratio of Nb 3Sn composite superconducting wires".

Standard NumberBS EN 61788-12:2013
TitleSuperconductivity - Matrix to superconductor volume ratio measurement. Copper to non-copper volume ratio of Nb3Sn composite superconducting wires
StatusDefinitive
Publication Date2013-10-31
ReplacesBS EN 61788-12:2002
Identical National Standard OfEN 61788-12:2013, IEC 61788-12:2013
DescriptorsElectric wires, Ratios, Volume, Copper, Superconductors, Electronic equipment and components, Superconductivity
ICS17.220.20 Measurement of electrical and magnetic quantities, 29.050 Superconductivity and conducting materials
CommitteeW/-
ISBN978 0 580 75669 6
PublisherBSI
Pages32

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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