TY - GEN
T1 - CRITICAL CURRENTS AND FLUX-PINNING PROPERTIES IN PbMo6S8 SUPERCONDUCTORS.
AU - Noto, K.
AU - Hamasaki, K.
AU - Komata, T.
AU - Saito, T.
AU - Yamashita, T.
AU - Watanabe, K.
PY - 1986/1/1
Y1 - 1986/1/1
N2 - 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.
AB - 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.
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U2 - 10.1007/978-1-4613-9871-4_106
DO - 10.1007/978-1-4613-9871-4_106
M3 - Conference contribution
AN - SCOPUS:0022890027
SN - 0306422921
SN - 9780306422928
T3 - Advances in Cryogenic Engineering
SP - 889
EP - 894
BT - Advances in Cryogenic Engineering
PB - Plenum Press
ER -