PRODUCTION OF OXIDE SUPERCONDUCTOR COMPOSITION

摘要

PURPOSE:To obtain a Tl-Sr-Ca-Cu-O-based or Tl-Ba-Ca-Cu-O-based oxide superconducting material exhibiting superconductivity at high temp. and having a high critical current density. CONSTITUTION:The oxide superconductor compositions of TlSr2CaCu2Ox and TlBa2CaCu2Oy are produced. In this case, the compositions are sintered at 890-920 deg.C and then rapidly cooled to room temp. at the rate of >=100 deg.C/sec.