The effect of high compressive stress on the critical current in multistrand Nb/sub 3/Sn conductors

Conference · Fri Jan 01 04:00:00 EST 1982 · Adv. Cryog. Eng.; (United States)

OSTI ID:6238412

Hassenzahl, W; Dietderich, D R; Gilbert, W; Hong, M; Scanlan, R; Taylor, C

This paper describes the effect to determine the irreversible effects of transverse compressive loads applied at room temperature and then released on a 23-strand Nb/sub 3/Sn Rutherford cable and its constituent strands. The cable, supplied by Airco, consists of wires having a copper jacket occupying 64% of the cross section; the remaining 36% is niobium, bronze, andd tantalum. It is indicated that such bronze-processed conductors exhibit little irreversible damage for compressive loads up to 15,000 psi and that no significant damage this is done to the brittle Nb/sub 3/Sn compound. The Nb/sub 3/Sn cable does not perform as well as expected on the basis of individual strand tests. A major part of the degradation can be associated with the highly deformed area near the edge of the cable but the cable strands themselves do not exhibit a good current region. Reducing the degree of compactin may reduce the size of this effect. Tests involving heavior loading are recommended.

• Research Organization: University of California, Berkeley, CA
• OSTI ID: 6238412
• Report Number(s): CONF-810835-
• Conference Information: Journal Name: Adv. Cryog. Eng.; (United States) Journal Volume: 28
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
CABLES
COMPRESSION
CONDUCTOR DEVICES
CRITICAL CURRENT
CRYOGENICS
CURRENTS
ELECTRIC CABLES
ELECTRIC COILS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
MAGNET COILS
MATERIALS TESTING
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
STRESSES
SUPERCONDUCTING CABLES
SUPERCONDUCTIVITY
TESTING
TIN ALLOYS