Electromechanical properties of superconductors for DOE/OFE applications. Final report Page: 8 of 15
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
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
[ 1] J. W. Ekin, "Strain scaling law for flux pinning in practical supercon-
ductors. Part : Basic relationship and application to Nb3Sn conduc-
tors," Cryogenics. vol. 20, pp. 611-624, November 1980.
 G. Rupp, "Stress induced normal-superconducting transition in multi-
filamentary NbSn conductors," IEEE Trans. Magn., vol. 15, pp. 189-
192, January 1979.
 J. W. Ekin, "Effect of transverse compressive stress on the critical
current and upper critical field of Nb3Sn," J. Apple. Phys., vol. 62, pp.
4829-4834, December 1987.
 W. Specking, W. Goldacker, and R. Flukiger, "Effect of transverse
compression on I of Nb3Sn multifilamentary wire," Adv. Cryog. Eng.,
vol. 34, pp. 569-575, 1988.
 K. R. Keller and J. J. Hanak, "Ultrasonic measurements in single-
crystal Nb3Sn," Phys. Rev., vol. 154, pp. 628-632, February 1967.
 W. Rehwald, M. Rayl, R. W. Cohen, and G. D. Cody, "Elastic moduli
and magnetic susceptibility of monocrystalline NbSn," Phys. Rev. B,
vol. 6, pp. 363-371, July 1972.
 J. F. Bussiere, D. 0. Welch, and M. Suenaga, "Young's modulus of
polycrystalline Nb3Sn between 4.2 and 300 K," J. Apple. Phys., vol. 51,
pp. 1024-1030, February 1980.
 D. S. Easton, D. M. Kroeger, W. Specking, and C. C. Koch, "A predic-
tion of the stress state in Nb3Sn superconducting composites." J. Apple.
Phys., vol. 51, pp. 2748-2757, May 1980.
 Z. P. Chang and G. R. Barsch, "Pressure dependence of elastic con-
stants and of shear mode instability for Nb3Sn," Phys. Rev. B, vol. 22,
pp. 3242-3255, October 1980.
 J. F. Bussiere, B. Faucher, C. L. Snead, Jr., and M. Suenaga, "Effects
of ternary additions on Young's modulus and the martensitic trans-
formation of Nb3Sn," Adv. Crygo. Eng., vol. 28, pp. 453-460, 1982.
[lt] J. F. Bussiere, B. Faucher ,and C. L. Snead, "Anomalous elastic sof-
tening of polycrystalline Nb3Sn below the martensitic transformation
temperature," J. Physique Colloq., vol. 43 (C4), pp. 363-368,
 J. F. Bussiere, H. LeHuy, and B. Faucher, "Elastic behavior of poly-
crystalline Nb3Sn, V3Ga, and Nb3Ge," Adv. Cryog, Eng., vol. 30, pp.
 I. Poirier, R. Plamondon, and J. D. N. Cheeke, "Elastic constants of
polycrystalline Nb3Sn between 4.2 and 300 K," J. Apple. Phys., vol. 55,
pp. 3327-3332, May 1984.
 N. G. Fiddes, C. G. King, G. S. Kobus, A. Mantone, and F. D. Shaffer,
"Apparatus for embossing superconducting tape for use in a super-
conducting magnet," U. S. Patent #5379019, January 3, 1995.
 K. A. Jones, S. C. Moss, and R. M. Rose, "The effect of small oxygen
additions on the elastic constants and low temperature ultrasonic at-
tenuation of Nb single crystals," Acta Met., vol. 17, pp. 365-372, April
 D. O. Welch, "The relationship between the martensitic phase transi-
tion and the superconducting properties of A 15 compounds," Adv.
Cyog. Eng., vol. 30, pp. 67 1-682, 1983.
[17j E. L. Hall, M. G. Benz, L. E. Rumaner, and K. D. Jones, "Interface
structure, grain morphology, and kinetics of growth of the supercon-
ducting intermetallic compound Nb3Sn doped with ZrO2 and copper,"
Mat. Res. Soc. Symp. Proc., vol. 205, pp. 263-268, 1992.
 M. Suenaga, K. Aihara, K. Kaiho, and T. S. Luhman,
"Superconducting properties of (Nb, Ta)3Sn wires fabricated by the
bronze process," Adv. Cryog. Eng., vol. 26, pp. 442-450, 1980.
 M. Suenaga, S. Okuda, R. Sabatini, K. Itoh, and T. S. Luhman,
"Superconducting properties of (Nb, Ti)3Sn wires fabricated by the
bronze process," Adv. Cryog. Eng., vol. 28, pp. 379-387, 1982.
 M. Suenaga, T. S. Luhman, and W. B. Sampson, "Effects of heat
treatment and doping with Zr on the superconducting critical current
densities of multifilamentary Nb3Sn wires," J. Apple. Phys., vol. 45, pp.
4049-4053, September 1974.
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
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 January 19, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.