Irradiation effects for in-situ composite conductors. [Nb/sub 3/Sm-Cu]

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6584324

Ostenson, J E; Finnemore, D K; Verhoeven, J D; Gibson, E D; Snead, Jr, C L

A series of high-performance in situ composite conductors have been studied to determine the detrimental effects of neutron irradiation on the upper critical field, the transition temperature and the critical current. For fluences up to 1 x 10/sup 18/ n/cm/sup 2/, there is essentially no degradation of any of the superconducting properties. At 7 x 10/sup 18/ n/cm/sup 2/, however, T/sub c/ has dropped to 13 K and at 10/sup 19/ neutrons n/cm/sup 2/ T/sub c/ has dropped to 9 K. The ratio of H/sub c2/T/sub c/ is essentially constant at 1.0 T/K for fluences out to 1.3 x 10/sup 19/ n/cm/sup 2/. The volume pinning force goes as (1-b)/sup 2/ for all samples indicating that shear in the flux line lattice controls J/sub c/ even for samples with T/sub c/ as low as 6 K.

• Research Organization: Ames Lab., IA (USA); Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6584324
• Report Number(s): BNL-32384; CONF-821108-17; ON: DE83005792
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
BEAMS
COMPOSITE MATERIALS
CRITICAL CURRENT
CRITICAL FIELD
CURRENTS
ELECTRIC CURRENTS
MAGNETIC FIELDS
MAGNETIC FLUX
MATERIALS
NEUTRON BEAMS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
NUCLEON BEAMS
PARTICLE BEAMS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TIN ALLOYS
TRANSITION TEMPERATURE