The effect of static and cyclic axial strain on I sub c of cable in conduit net subcables

Conference · Fri Mar 01 00:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6088549

Specking, W; Klemm, M; Flukiger, R ^[1]; Bruzzone, P ^[2]; Ricci, M ^[3]

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1. Kernforschungszentrum Karlsruhe GmbH (Germany). Inst. fuer Technische Physik
2. Asea Brown Boveri, Postfach 8242, CH-8050 Zuerich (CH)
3. NET Team, MPI Boltzmannstr. 2, D-8046 Garching (DE)

This paper reports on the effect of static and cyclic axial strain, {epsilon}{sub a}, on the critical current, l{sub c}, of Nb{sub 3}Sn Cable in Conduit (CIC) subconductors measured at l{sub c} {le} 10 kA and magnetic fields of B {le} 12.5 T. The conductors exhibit a maximum of l{sub c} at {epsilon}{sub a} {approx} 0.7% and a degradation of l{sub c} being about 50% at {epsilon}{sub a} = 0 and B = 12.5 T. As a major result, the l{sub c} vs {epsilon}{sub a} characteristic is unaffected up to 10{sup 3} strain cycles at {epsilon}{sub a} {le} 1%. The subcables were fabricated by ABB within the frame of the European Fusion Technology Program designing a 40 kA/12.5 T CIC conductor for the NET OH coils following the wind and react technique. Two different types of cable were developed, based either on a braid or on a triplet cable, inserted in a stainless steel jacket with 44% void fraction. For both cables a modified jelly roll (MJR) processed basic Nb{sub 3}Sn wire was used.

• OSTI ID: 6088549
• Report Number(s): CONF-900944-; CODEN: IEMGA
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Vol. 27:2; Conference: 1990 applied superconductivity conference, Snowmass, CO (United States), 24-28 Sep 1990; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
SUPERCONDUCTING CABLES
CRITICAL CURRENT
STRAINS
FABRICATION
MAGNETIC FIELDS
NET TOKAMAK
NIOBIUM BASE ALLOYS
STAINLESS STEELS
SUPERCONDUCTING WIRES
ALLOYS
CABLES
CLOSED PLASMA DEVICES
CONDUCTOR DEVICES
CURRENTS
ELECTRIC CABLES
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
NIOBIUM ALLOYS
STEELS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
WIRES
665412* - Superconducting Devices- (1992-)
700430 - Fusion Technology- Magnet Coils & Fields- (1992-)