Glass-derived superconducting ceramics with zero resistance at 107 K in the Bi sub 1. 5 Pb sub 0. 5 Sr sub 2 Ca sub 2 Cu sub 3 O sub x system

Journal Article · Mon Oct 09 00:00:00 EDT 1989 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.102308· OSTI ID:5486224

Bansal, N P; Farrell, D E ^[1]

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1. National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135 (US)

A melt of composition Bi{sub 1.5}Pb{sub 0.5}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub {ital x}} was fast quenched to form a glass. This was subsequently air annealed and the influence of annealing time and temperature on the formation of various crystalline phases was investigated. X-ray powder diffraction indicated that none of the resulting samples were single phase. However, for an annealing temperature of 840 {degree}C, the volume fraction of the high {ital T}{sub {ital c}} phase (isostructural with Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10}) increased with annealing time. A specimen annealed at this temperature for 243 h followed by slow cooling showed a sharp transition ({Delta}{ital T}{sub {ital c}} (10--90%) {similar to}2 K) and {ital T}{sub {ital c}} ({ital R}=0)=107.2 K. To our knowledge, this is the highest {ital T}{sub {ital c}} yet reported for any superconductor prepared via the glass route.

• OSTI ID: 5486224
• Journal Information: Applied Physics Letters; (USA), Vol. 55:15; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH OXIDES
SUPERCONDUCTIVITY
CALCIUM OXIDES
COPPER OXIDES
LEAD OXIDES
STRONTIUM OXIDES
ANNEALING
CERAMICS
CHEMICAL COMPOSITION
EXPERIMENTAL DATA
GLASS
MELTING
PEROVSKITES
QUENCHING
TRANSITION TEMPERATURE
VERY HIGH TEMPERATURE
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
DATA
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEAT TREATMENTS
INFORMATION
LEAD COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SCATTERING
STRONTIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
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360201 - Ceramics
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656100 - Condensed Matter Physics- Superconductivity