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

Conference · · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:6088549
; ;  [1];  [2];  [3]
  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)
+ Show Author Affiliations

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--
Journal Information:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
Country of Publication:
United States
Language:
English

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Related Subjects

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