Critical current density, irreversibility line, and flux creep activation energy in silver-sheathed Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub x] superconducting tapes

Conference · Sat Aug 01 00:00:00 EDT 1992

OSTI ID:6923513

Shi, D; Wang, Z; Sengupta, S; Smith, M ^[1]; Goodrich, L F ^[2]; Dou, S X; Liu, H K; Guo, Y C ^[3]

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1. Argonne National Lab., IL (United States)
2. National Inst. of Standards and Technology (NEL), Boulder, CO (United States). Electromagnetic Technology Div.
3. New South Wales Univ., Kensington, NSW (Australia). School of Materials and Engineering

Transport data, magnetic hysteresis and flux creep activation energy experimental results are presented for silver-sheathed high-[Tc] Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub x] superconducting tapes. The 110 K superconducting phase was formed by lead doping in a Bi-Sr-Ca-Cu-0 system. The transport critical current density was measured at 4.0 K to be 0.7 [times] 10[sup 5] A/cm[sup 2] (the corresponding critical current is 74 A) at zero field and 1.6 [times] 10[sup 4] A/cm[sup 2] at 12 T for H[parallel]ab. Excellent grain alignment in the a-b plane was achieved by a short-melting method, which considerably improved the critical current density and irreversibility line. Flux creep activation energy as a function of current is obtained based on the magnetic relaxation measurements.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38; FG02-90ER45427
• OSTI ID: 6923513
• Report Number(s): ANL/CP-77533; CONF-920802-30; ON: DE93002998
• Resource Relation: Conference: Applied superconductivity conference, Chicago, IL (United States), 23-28 Aug 1992
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTIVITY
SUPERCONDUCTING FILMS
ACTIVATION ENERGY
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
CREEP
CRITICAL CURRENT
CURRENT DENSITY
HYSTERESIS
MAGNETIC FLUX
MAGNETIZATION
STRONTIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ENERGY
FILMS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
360207* - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)
665412 - Superconducting Devices- (1992-)