Phase formation and superconductivity in PIT-type (Bi,Pb)-1212

Phase formation and superconductivity in PIT-type (Bi,Pb)-1212

It was shown via powder-in-tube (PIT) processing that the (Bi,Pb)-1212 phase with a textured microstructure readily forms inside a silver sheath at 920°C in air. Composition, oxygen pressure, time, and temperature were all varied to study their effects on (Bi,Pb)-1212 phase purity and supercodductiv...

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2000, Vol.341, p.657-658
Hauptverfasser: Murohy, N.M., Dorris, S.E., Miller, D.J., Luo, Z.P., Claus, H., Maroni, V.A.
Format: Artikel
Sprache:eng
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Zusammenfassung:It was shown via powder-in-tube (PIT) processing that the (Bi,Pb)-1212 phase with a textured microstructure readily forms inside a silver sheath at 920°C in air. Composition, oxygen pressure, time, and temperature were all varied to study their effects on (Bi,Pb)-1212 phase purity and supercodductivity. No evidence was found to support several prior claims that (Bi,Pb)-1212 is superconducting.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(00)00636-5