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Bi4Sr3Ca3 Cu4O16 glass and superconducting glass ceramics

Haixing Zheng, J. D. Mackenzie

DOI 10.1103/PhysRevB.38.7166 · Physical Review B

T1

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Abstract

A Bi4Sr3Ca3 Cu4O16 glass has been successfully fabricated by the melting process. Glass transition temperature, crystallization temperature, and liquid temperature of the glass are 434, 478, and 833°C, respectively. After the glass is heat treated at 800°C, a glass ceramic is formed. A comparison of the x-ray-diffraction pattern of the superconducting Bi4Sr3Ca3Cu4O16+x ceramic to the Bi4Sr3Ca3 Cu4O16 glass ceramic revealed preferred orientation in the glass-ceramic crystals. The superconducting transition temperatures Tc(onset) and Tc(zero) of the glass ceramics are 100 and 45 K, respectively.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
Bi4Sr3Ca3Cu4O16+x

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100Pressure not reportedonset
Bi4Sr3Ca3Cu4O16+x

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Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

45Pressure not reportedzero_resistance
Bi4Sr3Ca3Cu4O16-x

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85Pressure not reportedunknown

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