Further studies of Nb{sub 3}Sn wire for the 45-T hybrid magnet
Journal Article
·
· Advances in Cryogenic Engineering
OSTI ID:482158
- National High Magnetic Field Lab., Tallahassee, FL (United States); and others
The 45-T Hybrid Magnet will use NbTi and Nb{sub 3}Sn Cable-In-Conduit Conductors (CICC) operating at 10 kA to produce a field of 14-T on axis in a 710-mm diameter magnet bore. A candidate Nb{sub 3}Sn wire has been evaluated and selected for this application. However, the copper stabilizer of some wires has been shown to be susceptible to contamination, from unknown sources, which results in low Residual Resistivity Ratios (RRR). Here the authors report a characterization of wire given abbreviated heat treatment schedules designed to improve the RRR. It is shown that the RRR is readily improved by modifying the heat treatment schedule while critical current density remains above specified minimums. RRR and critical current density as a function of heat treatment and critical current density as a function of axial strain are reported.
- OSTI ID:
- 482158
- Report Number(s):
- CONF-950722--; CNN: Grant DMR 9016241
- Journal Information:
- Advances in Cryogenic Engineering, Journal Name: Advances in Cryogenic Engineering Vol. 42B; ISSN 0065-2482; ISSN ACYEAC
- Country of Publication:
- United States
- Language:
- English
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