Bronze processed multifilamentary Nb3Sn superconducting wires, with a CuNb reinforcing stabilizer instead of the conventional Cu stabilizer, were fabricated. The mechanical properties and the strain dependence of the critical current Ic were evaluated at 4.2 K and a magnetic field of 15 T. A remarka
Behaviour of Nb3Sn multifilamentary wire with H additions
β Scribed by C. Ferdeghini; M. Ferretti; F.C. Matacotta; C. Rizzuto; A. Siri
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 279 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0011-2275
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Short Jc samples and small coils wound from bronze-processed multifilamentary Nb3Sn wires were reacted at 700Β°C, both under vacuum and under 20 MPa argon pressure for various times and subsequently tested in an applied transverse magnetic field at 4.2 K. High pressure reaction enhanced the Nb3Sn lay
Multifilamentary Nb3Sn composite conductors with 65 880 and 421 160 filaments have been fabricated in long lengths by the internal tin-diffusion method. Filament diameters are in the range from 31.1 nm to 274 nm. Conductors were heat treated for 1 to 53 days at various temperatures from 400Β°C to 700
The effects of addition of Ge to the matrix of bronze-processed Nb3Sn on the structure and superconducting properties have been studied. The simultaneous addition of Ta, Hf and Ti to the Nb core has also been carried out. The critical current density, Jc, of Nb3Sn was appreciably increased by the ad