SUPERCONDUCTING METAL OXIDE COMPOSITIONS AND PROCESSES FOR MANUFACTURE AND USE

摘要

TITLE CR-8708 SUPERCONDUCTING METAL OXIDE COMPOSITIONS AND PROCESSES FOR MANUFACTURE AND USE Compositions having the nominal formula PbaRbCacSrdCueOx wherein R is one or more elements selected from the group consisting of yttrium and the lanthanides with atomic numbers 57 to 71, a is from about 1/2 to 5, b is from about 1/10 to 2, c is from about 112 to 4, d is from about 1/2 to 4, e is from about 3 to 6, x=(a+b+c+d+e+y)where y is from about 1/2 to 3, are superconducting. Processes for manufacturing such compositions and for using them are disclosed. HMW001.008