CRITICAL CURRENTS AND FLUX-PINNING PROPERTIES IN PbMo6S8 SUPERCONDUCTORS.

K. Noto, K. Hamasaki, T. Komata, T. Saito, T. Yamashita, K. Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report on recent investigations of the fabrication of PbMo//6S//8 tapes prepared using an electro-plating and diffusion technique. Measurement of critical currents was carried out in either 16. 5 T superconducting magnet, or 20. 5 T (HM-3) and 23 T (HM-2) hybrid magnets in High Field Laboratory for Superconducting Materials RIISOM, Tohoku University in Japan. After optimal reaction the critical temperature measured by a resistive method reaches about 14. 5 K, and a transition width was less than 0. 5 K. Critical current densities are relatively high in a low magnetic field, and reached 1 multiplied by 10**4 A/cm**2 in a 15 T magnetic field at 4. 2 K. However, J//cs in a strong magnetic field above 15 T are still insufficient for practical applications. In some of these samples pinning force densities were found to obey a simple scaling law, and in most cases the scaling is not obeyed. Poor J//c-B characteristics in a strong magnetic field may be due to inhomogeneities of this compound.

Original languageEnglish
Title of host publicationAdvances in Cryogenic Engineering
PublisherPlenum Press
Pages889-894
Number of pages6
ISBN (Print)0306422921, 9780306422928
DOIs
Publication statusPublished - 1986 Jan 1

Publication series

NameAdvances in Cryogenic Engineering
Volume32
ISSN (Print)0065-2482

ASJC Scopus subject areas

  • Engineering(all)

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