Developmental Studies on Powder-Processed Nb3A1 Superconducting Wire
The superconducting compounds that show greatest promise for the windings of high-field superconducting magnets are intermetallic compounds of stoichiometric composition A3B in the A15 crystal structure. This class of compounds includes the superconducting phases Nb3Sn, V3Ga, Nb3A1, Nb3Ge, and others. They combine high critical temperature (Tc) with high upper critical field (Hc2) and high critical current density (Jc). These compounds are, however, brittle intermetallic phases. They are therefore difficult to form into long lengths of superconducting wires for use in high-field magnet windings.
KeywordsCritical Current Density High Critical Current Density Superconducting Wire Brittle Intermetallic Phasis Critical Current Measurement
Unable to display preview. Download preview PDF.
- 1.A. R. Kaufman and J. J. Pickett, Bull. Am. Phys. Soc. 15: 838 (1970).Google Scholar
- 4.B. Annaratone, R. Bruzzese, S. Ceresara, V. Pericoli-Ridolfini, G. Pitto, and N. Sacchetti, IEEE Trans. Magn. MAG-16:1 (1980) and the references therein.Google Scholar
- 5.M. R. Pickus, V. F. Zackay, E. R. Parker, and J. T. Holthuis, Int. J. Powder Metall. 9; 3 (1973).Google Scholar
- 7.C. E. Lundin and A. S. Yamamoto, Trans. Metall, Soc. AIME 236: 863 (1966).Google Scholar
- 8.J. L. Jorda, R. Flukiger, A. Junod, and J. Muller, IEEE Trans. Magn. MAG-17: 557 (1981).Google Scholar
- 10.D. Dew-Hughes, in: “Treatise on Materials Science and Technology,” Vol. 14, T. Luhman and D. Dew-Hughes, eds., Academic Press, New York (1979), pp. 156–159, and the references therein.Google Scholar