PROCESS FOR PREPARING SUPERCONDUCTOR OF COMPOUND OXIDE OF BI-SR-CA-CU SYSTEM

摘要

A compound oxide superconductor represented by the generalformula:Bi4+d(Sr1-x, Ca x)m Cu n Op+yin which,"d" is an amount of excess bismuth and satisfies a range of0 d ~ 1.2,"m" is a number which satisfies a range of 6 ~ m ~ 10,"n" is a number which satisfies a range of 4 ~ n ~ 8,"p"= 6+m+n,"x" is a number which satisfies a range of 0 x 1, and"y" is a number which satisfies a range of -2 ~ y ~ +2.