Strain tolerance of doctor-blade-processed Bi sub 2 Sr sub 2 Ca sub 1 Cu sub 2 O sub 8 minus. delta. tapes

Journal Article · Sun Dec 01 04:00:00 EST 1991 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.349824· OSTI ID:5114308

Togano, K; Kumakura, H ^[1]; Kase, J ^[2]; Li, Q; Ostenson, J E; Finnemore, D K ^[3]

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1. National Research Institute for Metals, Tsukuba, Ibariki 305 (Japan)
2. Asahi Glass Co. Ltd., Hazawa, Yokohama 221 (Japan)
3. Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa (USA)

The strain tolerance of doctor blade tapes of the high-temperature superconductor Bi{sub 2}Sr{sub 2}Ca{sub 1}Cu{sub 2}O{sub 8{minus}{delta}} have been studied to determine the suitability of these materials for magnet conductors. Critical currents that are on the order of 150 000 A/cm{sup 2} in zero magnetic field fall by about 30% with 0.1% bending strain and by a factor of 6 with 0.2% bending strain. At 20 T, critical currents fall with strain by approximately the same factor as at 4.2 K, but the critical currents fall with field somewhat faster. These bending strain results have a character quite different from Nb{sub 3}Sn bronze process material in that there is essentially no prestress from the Cu jacket and there seems to be only a very small reversible range where the sample is within the elastic limit.

• OSTI ID: 5114308
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 70:11; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BENDING
BISMUTH COMPOUNDS
BISMUTH OXIDES
CABLES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CONDUCTOR DEVICES
COPPER COMPOUNDS
CRITICAL CURRENT
CUPRATES
CURRENTS
DEFORMATION
ELASTICITY
ELECTRIC CABLES
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
STRAINS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING CABLES
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS