Synthesis of 85 K BiSrCaCuO superconductor

Synthesis of 85 K BiSrCaCuO superconductor

Synthesis of the compound Bi 2Sr 2-yCaCu 2O x, 0≤y≤0.5, was attempted from 10 4 to 10 6 Pa oxygen pressure. Lower pressures and temperatures less than 800°C proved most effective in forming the 85-K superconducting material. A Sr-deficient stoichiometry exhibited highest phase purity. Results sugges...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Materials research bulletin 1990-02, Vol.25 (2), p.251-256
Hauptverfasser: Karbarz, F.A., Lacy, O.D., Goretta, K.C., Balachandran, U., Shi, Donglu, Chen, J.G., Xu, Ming, Hash, M.C.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Exact sciences and technology
Technical ceramics
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Synthesis of the compound Bi 2Sr 2-yCaCu 2O x, 0≤y≤0.5, was attempted from 10 4 to 10 6 Pa oxygen pressure. Lower pressures and temperatures less than 800°C proved most effective in forming the 85-K superconducting material. A Sr-deficient stoichiometry exhibited highest phase purity. Results suggest, however, that presence of a small amount of a phase such as the low-temperature superconductor, Bi 2Sr 2CuO 6, has little effect on the resulting superconducting properties.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(90)90052-4