NASA NTRS · 19920000088
Glass-Derived Superconductive Ceramic
Abstract
Critical superconducting-transition temperature of 107.2 K observed in specimen made by annealing glass of composition Bi1.5Pb0.5Sr2Ca2Cu3Ox for 243 h at 840 degrees C. PbO found to lower melting temperature and viscosity of glass, possibly by acting as fluxing agent. Suggested partial substitution of lead into bismuth oxide planes of crystalline phase having Tc of 110 K stabilizes this phase and facilitates formation of it.
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Bansal, Narottam P., Farrell, D. E.. 1992-02-01. Glass-Derived Superconductive Ceramic. https://ntrs.nasa.gov/citations/19920000088
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