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Standard [CURRENT]

DIN EN 61788-19:2014-09

VDE 0390-19:2014-09

Superconductivity - Part 19: Mechanical properties measurement - Room temperature tensile test of reacted Nb₃Sn composite superconductors (IEC 61788-19:2013); German version EN 61788-19:2014

German title
Supraleitfähigkeit - Teil 19: Messung der mechanischen Eigenschaften - Zugversuch von reagierten Nb₃Sn-Verbundsupraleitern bei Raumtemperatur (IEC 61788-19:2013); Deutsche Fassung EN 61788-19:2014
Publication date
2014-09
Original language
German
Pages
46

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Publication date
2014-09
Original language
German
Pages
46

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Overview

This part of IEC 61788 covers a test method detailing the tensile test procedures to be carried out on reacted Cu/Nb3Sn composite superconducting wires at room temperature. This test is applied to measure the modulus of elasticity and to determine the proof strength of the composite due to yielding of the copper and the copper tin components from the stress versus strain curve. Furthermore, the elastic limit, the tensile strength, and the elongation after fracture can be determined by means of the present method, but they are treated as optional quantities because the measured quantities of the elastic limit and the elongation after fracture have been reported to be subject to significant uncertainties according to the international round robin test. The sample covered by this test procedure should have a bare round or rectangular cross-section with an area between 0,15 mm2 and 2,0 mm2 and a copper to non-copper volume ratio of 0,2 to 1,5 and should have no insulation. The responsible committee is K 184 "Supraleiter" ("Superconductors") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.

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