Nb sub 3 Sn multifilamentary superconductors; An updated comparison of different manufacturing routes

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6104159

Thoener, M; Krauth, H; Szulczyk, A; Heine, K ^[1]; Kemper, M ^[2]

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1. Vacuumschmelze GmbH, Hanau (Germany)
2. Inst. fuer Angewandte Physik der Univ. Biessen, Heinrich-Buff-Ring 16, D-6300 Giessen (DE)

This paper reports on the brittle intermetallic compound Nb{sub 3}Sn produced in multifilamentary form by using ductile precursor materials and a final diffusion heat treatment. The widely used bronze route processed conductors can not explore completely the critical current capabilities of Nb{sub 3}Sn because of the high amount of CuSn in the conductor cross section. Other processes can achieve higher overall critical current densities like internal Sn routes to Nb tube methods. Despite this fact, bronze route conductors are better suited for most applications. For NMR spectroscopy homogeneous defect free conductors with high n values are needed as achievable easily with the hard bronze matrix, whereas the homogeneity of wires produced by other processes tends to deteriorate due to the complex deformation characteristics.

• OSTI ID: 6104159
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
AC LOSSES
ACCELERATORS
ALLOYS
BRONZE
COPPER ALLOYS
COPPER BASE ALLOYS
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
ENERGY LOSSES
FABRICATION
FILAMENTS
HEAT TREATMENTS
INTERMETALLIC COMPOUNDS
LOSSES
MAGNETIC RESONANCE
MAGNETIZATION
MATERIALS
MATRIX MATERIALS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
NUCLEAR MAGNETIC RESONANCE
RESONANCE
SPECTROSCOPY
SUPERCONDUCTING WIRES
THERMONUCLEAR REACTORS
TIN ALLOYS
WIRES