Electromechanical properties of superconductors for DOE/OFE applications. Final report Page: 8 of 15
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There is a broad range of reported values for the elastic
modulus of Nb3Sn at 4 K using various measurement tech-
niques, 32 GPa to 165 GPa. The present data are the first
published results on the elastic modulus of Nb3Sn from ten-
sile tests. These results are qualitatively consistent with most
earlier data from ultrasonic, vibrating reed, and static beam
deflection measurements, which usually show a low-
temperature softening of the elastic modulus. The results of
the present study are summarized in Table I.
ELASTIC-MODULUS VALUES FROM TENSILE TESTS OF
POLYCRYSTALLINE NbsSna SPECIMENS
Temperature Elastic Modulus
293 K 150 5 GPa
4 K 65 15 GPa
'The NbaSn specimens contain 1.4 wt.% ZrO2 precipitates and are
The authors thank Christopher G. King of G. E. Medical
Systems for preparing the Nb3Sn specimens and for many
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Ekin, J.W. & Bray, S.L. Electromechanical properties of superconductors for DOE/OFE applications. Final report, report, September 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc707370/m1/8/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.