Microstructure and n-value of RHQT processed Nb3Al superconductors for NMR uses

IEEE Transactions on Applied Superconductivity

Volumn 14, Issue 2, 2004, Pages 961-966

  Takeuchi, T ^a   Banno, N ^a   Tagawa, K ^b   Kobayashi, T ^c   Tsuchiya, K ^c   Tatsumi, N ^a   Kitaguchi, H ^a   Fukuzaki, T ^d   Kosuge, M ^a   Wada, H ^a   Iijima, Y ^a   Kikuchi, A ^a   Inoue, K ^a  

^a NATIONAL INSTITUTE FOR MATERIALS SCIENCE   (Japan)

^b HITACHI CABLE LTD   (Japan)

^c HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION KEK   (Japan)

^d RIKEN YOKOHAMA INSTITUTE   (Japan)

Author keywords

Deformation; Persistent mode magnet; RHQ condition; Stabilization

Indexed keywords

CURRENT DENSITY; ELECTRIC POTENTIAL; ENERGY DISPERSIVE SPECTROSCOPY; MICROSTRUCTURE; NUCLEAR MAGNETIC RESONANCE; QUENCHING; SCANNING ELECTRON MICROSCOPY; SUPERCONDUCTING MAGNETS; SUPERCONDUCTING MATERIALS;

MECHANICAL DEFORMATIONS; PERSISTENT-MODE MAGNET; RHQ CONDUCTION; ROD-IN-TUBE (RIT);

NIOBIUM COMPOUNDS;

EID: 4344616839     PISSN: 10518223     EISSN: None     Source Type: Journal    
DOI: 10.1109/TASC.2004.830339     Document Type: Conference Paper

References (19)

1. 3Al multifilamentary wires continuously fabricated by rapid-quenching," Adv. Cryog. Eng., vol. 40, pp. 899-905, 1994.
2. 3Al conductors for high-field applications," Supercond. Sci. Technol., vol. 13, pp. R101-R119, 2000.
3. 3Al conductors - rapid-heating, quenching and transformation process -," IEEE Trans. Appl. Supercond., vol. 10, no. 1, pp. 1016-1021, March 2000.
4. 3Al superconductors," IEEE Trans. Appl. Supercond., vol. 12, no. 1, pp. 1088-1093, March 2002.
5. 3Al," in Handbook of Superconducting Materials, D. A. Crdwell and D. S. Glinley, Eds. Bristol and Philadelphia: Institute of Physics Publishing, December 2002, pp. 673-684.
6. 3Al multifilamentary conductors prepared by phase transformation from bcc supersaturated-solid- solution," Appl. Phys. Lett., vol. 71, pp. 122-124, 1997.
7. J. W. Ekin, "Irregularity in Nb-Ti filament area and electric field versus current characteristics," Cryogenics, vol. 27, pp. 603-607, 1987.
8. Y. Iwasa, Case Studies in Superconducting Magnets. New York, London: Plenum Press, 1994, p. 307.
9. T. Kiyoshi et al., "Persistent-mode operation of a 920 MHz high-resolution NMR magnet," IEEE Trans. Appl. Superconduct., vol. 12, no. 1, pp. 711-714, March 2002.
10. H. S. Edelman and D. C. Larbalestier, "Resistive transitions and the origin of the n value in superconductors with a Gaussian critical-current distribution," J. Appl. Phys., vol. 74, pp. 3312-3315, 1993.
11. 3Al superconductors," Supercond. Sci. Technol., vol. 15, pp. 1404-1409, 2002.
12. 3Al conductors," IEEE Trans. Appl. Supercond., vol. 11, no. 1, pp. 3972-3975, March 2001.
13. 3Al conductor," IEEE Trans. Appl. Supercond., vol. 13, no. 2, pp. 3454-3457, June 2003.
14. K. Tsuchiya, T. Kobayashi, T. Shintomi, N. Banno, K. Itoh, S. Nimori, and T. Takeuchi, "Measurement of V-I characteristics of commercial multifilamentary NbTi wires," Physica C, vol. 401, pp. 265-269, 2004.
15. 3Al conductors by the transformation-heat- based up-quenching method," Supercond. Sci. Technol., vol. 13, pp. L11-L14, 2000.
16. 3Al superconductors," Supercond. Sci. Technol., vol. 15, pp. 519-525, 2002.
17. 3Al multifilamentary conductors," IEEE Trans. Appl. Supercond., vol. 9, no. 2, pp. 2681-2687, June 1999.
18. 3Al superconductors," Supercond. Sci. Technol., vol. 16, pp. 1173-1181, 2003.
19. 3Al wires," Adv. Cryog. Eng., vol. 46, pp. 975-980, 2000.