The Bean model and ac losses in Bi{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10}/Ag tapes

Conference · Mon Dec 01 00:00:00 EST 1997

OSTI ID:554866

Suenaga, M; Chiba, T; Wiesmann, H J ^[1]; Haldar, P ^[2]

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1. Brookhaven National Lab., Upton, NY (United States). Dept. of Applied Science
2. Intermagnetic General Corp., Latham, NY (United States)

The Bean model is almost solely used to interpret ac losses in the powder-in-tube processed composite conductor, Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10}/Ag. In order to examine the limits of the applicability of the model, a detailed comparison was made between the values of critical current density J{sub c} for Bi(2223)/Ag tapes which were determined by standard four-probe-dc measurement, and which were deduced from the field dependence of the ac losses utilizing the model. A significant inconsistency between these values of J{sub c} were found, particularly at high fields. Possible sources of the discrepancies are discussed.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 554866
• Report Number(s): BNL-64929; CONF-971021-; ON: DE98001352; BR: KC0201030; TRN: 98:008884
• Resource Relation: Conference: 10. international symposium on superconductivity, Gifu (Japan), 27-30 Oct 1997; Other Information: PBD: [1997]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SUPERCONDUCTING COMPOSITES
AC LOSSES
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
SILVER ALLOYS
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTIVITY
MATHEMATICAL MODELS
CRITICAL CURRENT