The effect of transverse stress on the critical current of Nb/sub 3/Sn cable-in-conduit superconductors

Conference · Wed Mar 01 04:00:00 EST 1989 · IEEE Trans. Magn.; (United States)

OSTI ID:6087251

Summers, L T; Miller, J R

The authors have investigated the effects of transverse stress on the critical current of Nb/sub 3/Sn Cable-In-Conduit Conductors (CICC). The sensitivity of the critical current (I/sub c/) to applied stress at 12 T has been determined for CICC's with helium void fractions (f/sub He/) in the range of 0.25 - 0.4. I/sub c/ has been found to be a function transverse stress with good correlation to single wire data up to stress levels of 50 MPa. At higher stress levels the CICC's show significantly higher degradation with transverse stress. No clear correlation has been found between the stress sensitivity of I/sub c/ and f/sub He/. The results fall into a broad band suggesting that geometric factors, such as wire position within the cable bundle, exert a strong influence on the I/sub c/ vs. stress dependence.

• Research Organization: 9513035
• OSTI ID: 6087251
• Report Number(s): CONF-880812-
• Conference Information: Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: 25:2
• Country of Publication: United States
• Language: English

Related Subjects

200303 -- Power Transmission & Distribution-- Superconducting & Cryogenic Systems-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CABLES
CONDUCTOR DEVICES
CRITICAL CURRENT
CURRENTS
ELECTRIC CABLES
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELEMENTS
EQUIPMENT
FLUIDS
GASES
GEOMETRY
HELIUM
MATHEMATICS
NONMETALS
RARE GASES
SENSITIVITY
STRESSES
SUPERCONDUCTING CABLES
TUBES