Y. Dimitriev et al., HIGH-T(C) SUPERCONDUCTING GLASS-CERAMICS PREPARED BY THE MELT-QUENCHING METHODS IN THE BISMUTHATE SYSTEM WITH ADDITIVES, Materials research bulletin, 28(11), 1993, pp. 1185-1192
High-Tc superconducting glass-ceramics in the system Bi-Sr-Ca-Cu-O hav
e been investigated with additives PbO and TeO2 in the nominal composi
tion Bi2-x-yPbxTeySr2Ca2Cu3Oz. Three alternative methods for synthesis
of precursors have been studied. The free melt quenching technique an
d tellurium as additive stimulate the formation of high-T(C) phase.