The reduction of the critical current in Nb sub 3 Sn cables under transverse forces

Conference · Wed Jan 01 00:00:00 EST 1992 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5364403

ten Kate, H H.J.; Weijers, H; Wessel, S; Boschman, H; van de Klundert, L J.M. ^[1]

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1. Univ. of Twente, Applied Superconductivity Centre, P.O. Box 217, 7500 AE Enschede (NL)

This paper reports that the degradation of the critical current of impregnated Rutherford type of Nb{sub 3}Sn cables has been investigated as function of the transverse force applied to the cable surface. Voltage-current characteristics were measured between 9 and 11 tesla by which the cable is supplied with the full transport current while a section on the broad side of the cable with a length of 40 mm is under pressure. A few samples are investigated as a function of the transverse force strands in the cable. It appears that the degradation of the strands is not uniform, for example, at 200 MPa some strands show 1-% while other have 40% critical current degradation also depending on the critical current criterion used. The global degradation of the cable is 12 {plus minus} 2% at 200 MPa though it is possible that a single bad strand in a cable limits the cable to below this value due to premature quenching of that strand.

• OSTI ID: 5364403
• Report Number(s): CONF-910662-; CODEN: IEMGA
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Vol. 28:1; Conference: 12. international conference on magnet technology, Leningrad (USSR), 23-28 Jun 1991; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
24 POWER TRANSMISSION AND DISTRIBUTION
36 MATERIALS SCIENCE
NIOBIUM BASE ALLOYS
CRITICAL CURRENT
SUPERCONDUCTIVITY
SUPERCONDUCTING CABLES
CURRENT DENSITY
STABILITY
TIN ALLOYS
QUENCHING
SUPERCONDUCTING COILS
TRANSVERSE ENERGY
ALLOYS
CABLES
CONDUCTOR DEVICES
CURRENTS
ELECTRIC CABLES
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ENERGY
EQUIPMENT
KINETIC ENERGY
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
665412* - Superconducting Devices- (1992-)
665411 - Basic Superconductivity Studies- (1992-)
240302 - Power Transmission Lines & Cables- Superconducting Cables- (1990-)
360107 - Metals & Alloys- Superconducting Properties- (1992-)