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Preparation of Bi-Pb-Sr-Ca-Cu-O superconductors by the spray pyrolysis method using ultrasonic atomization techniques

Journal Article · · Journal of Solid State Chemistry; (USA)
The high {Tc} oxide superconductor of the Bi-Pb-Sr-Ca-Cu-O system was prepared by spray pyrolysis. X-ray diffraction patterns of the sample show a perfectly isolated 110 K phase. Superconducting transition with zero-resistance temperture at {Tc} = 101 K was achieved for a sample calcined at 850{degree}C for 18 hr and sintered at the same temperature for 12 hr. The heat treatment time required to form the pure 110 K phase could be minimized by spray pyrolysis. The critical current density at 77 K in zero magnetic field was 528 A/cm{sup 2}.
OSTI ID:
6112355
Journal Information:
Journal of Solid State Chemistry; (USA), Journal Name: Journal of Solid State Chemistry; (USA) Vol. 89:1; ISSN JSSCB; ISSN 0022-4596
Country of Publication:
United States
Language:
English