A mechanism for resistive dissipation in Ag sheathed Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} and Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10}

Conference · Mon Nov 01 00:00:00 EST 1993

OSTI ID:140103

Suenaga, M; Li, Q; Sabatini, R L ^[1]; Shibutani, K; Hayoashi, S; Ogawa, R; Kawate, Y ^[2]; Motowidlo, L ^[3]; Hadlar, P ^[4]

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1. Brookhaven National Lab., Upton, NY (United States)
2. Kobe Steel Ltd. (Japan)
3. IGC/Advanced Superconductors, Inc., Waterbury, CT (United States)
4. Intermagnetic General, Corp., Guidlerland, NY (United States)

Detailed measurements of the V-I curves for a number of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} and Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10}/Ag composite tapes were made at 4.2, 27, and 64-77 K as a function of applied magnetic field as well as the angle between the tape face and the direction of applied field. Results suggest that the weak vortex-pinning strength, and the amount of the weakly coupled grain boundaries and of the non-superconducting volume are primary limiting factors for critical current densities in Bi(2212)/Ag and Bi(2223)/Ag, respectively. Furthermore, in both cases, the dissipative voltages arise from the interior of the gains.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 140103
• Report Number(s): BNL-49652; CONF-931073-3; ON: DE94003009
• Resource Relation: Conference: 6. international symposium on superconductivity, Hiroshima (Japan), 26-29 Oct 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

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