Effect of the fluctuation range of formation temperature on the preparation and superconductivity of Bi(Pb)2223 single-phase

Journal Article · Fri Dec 01 04:00:00 EST 1995 · Journal of Superconductivity

DOI:https://doi.org/10.1007/BF00727498· OSTI ID:272678

Zhao, J; Dong, C; Chen, H; Jia, S L ^[1]

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1. National Laboratory for Superconductivity, Beijing (China); and others

Effects of the fluctuation range of formation temperature on preparation and superconducting properties of the Bi(Pb)2223 phase have been investigated in detail. Our results show that knowledge about the temperature distribution and fluctuation in the muffle furnace is necessary for preparation of the Bi(Pb)2223 single-phase. Single-phase samples from Bi{sub 0.17}Pb{sub 0.3}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub y} were obtained by a solid-state reaction in air at 835{+-}5{degrees}C. The best superconducting property of the as-prepared samples shows a one-step transition of a.c. susceptibility with T{sub c}=109 K. Using this optimum sintering temperature and keeping the temperature fluctuation less than 5{degrees}C, we have prepared pure Bi(Pb)2223 single-phase samples with good reproducibility.

• Sponsoring Organization: USDOE
• OSTI ID: 272678
• Journal Information: Journal of Superconductivity, Journal Name: Journal of Superconductivity Journal Issue: 6 Vol. 8; ISSN JOUSEH; ISSN 0896-1107
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHEMICAL PREPARATION
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
LEAD COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTIVITY
TEMPERATURE DISTRIBUTION