Published April 1982 | Version v1
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The stability of NbTi composite superconductors of high CU/SC-ratio

Creators

  • 1. Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Technische Physik

Description

Investigations with respect to stability behaviour were made on NbTi composite multifilamentary conductors of a Cu/SC ratio of 10 in magnetic field from 7 T up to 10 T. The recovery currents in dependence on the magnetic field were determined under bath cooling conditions at 4.2 K for a heat disturbance of 0.6 Joule. The current sharing regime turned out to be very extended due to the high copper content and consequently offered a safety margin in magnets in case of transient overcurrents. The copper stabilizer was attached to the superconductor in different ways but the stability behaviour was not changed. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Untersuchungen des Stabilitaetsverhaltens wurden an NbTi-Multifilament-Verbundleitern mit einem Cu/SL-Verhaeltnis von 10 im Feldbereich zwischen 7 und 10 T gemacht. Es wurden die Recovery-Stroeme in Abhaengigkeit vom Magnetfeld bei Kuehlung im Heliumbad von 4.2 K nach einem Waermepuls mit 0,6 Joule bestimmt. Wegen des hohen Anteils an Kupfer im Leiter war der 'current sharing' Bereich sehr ausgedehnt und bot damit bei transienten Stromueberschreitungen eine Sicherheitsreserve. Das stabilisierende Kupfer war am Supraleiter auf verschiedene Weisen angebracht, aber das Stabilitaetsverhalten war davon nicht beeintraechtigt. (orig.)

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Additional details

Additional titles

Original title (English)
Die Stabilitaet von NbTi Verbundsupraleitern mit hohem CU/SL-Verhaeltnis

Publishing Information

Imprint Pagination
11 p.
Report number
KFK--3240

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
13697952
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
COPPER; CRITICAL CURRENT; FILAMENTS; NIOBIUM ALLOYS; STABILITY; SUPERCONDUCTING COMPOSITES; TITANIUM ALLOYS
Descriptors DEC
ALLOYS; COMPOSITE MATERIALS; CURRENTS; ELECTRIC CURRENTS; ELEMENTS; METALS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS