Magnetic studies of proximity-effect coupling in a very closely spaced fine-filament NbTi/CuMn composite superconductor

Conference · Sun Jan 01 04:00:00 EST 1989

DOI:https://doi.org/10.1007/978-1-4613-9880-6_30· OSTI ID:5215346

Collings, E W; Marken, Jr, K R; Sumption, M D; Gregory, E; Kreilick, T S

Magnetization studies have been conducted on a 23,000-filament composite (with a filament-spacing/filament-diameter ratio, s/d, of about 0.19) drawn down to d = 11.5 to 0.5 {mu}m. Various techniques have been used to explore the occurrence and properties of proximity-effect coupling between the filaments across the Cu-0.5 wt.% Mn matrix. This coupling, which sets in at d < 1.5 {mu}m -- much smaller than 2.5 {mu}m intended for superconducting supercollider (SSC) magnet applications -- is studied both at low fields (well below the H{sub c1} of the NbTi) and at high fields (of up to 1.5 tesla (15 kG)). 7 refs., 6 figs., 3 tabs.

• Research Organization: Battelle Columbus Div., OH (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC02-86ER40296
• OSTI ID: 5215346
• Report Number(s): CONF-890701-22; ON: DE90005387
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
COMPOSITE MATERIALS
COPPER ALLOYS
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FILAMENTS
MAGNETIC PROPERTIES
MAGNETIZATION
MANGANESE ADDITIONS
MANGANESE ALLOYS
MATERIALS
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
SUPERCONDUCTING COMPOSITES
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
TITANIUM ALLOYS