𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effects of the germanium addition to the matrix of bronze-processed Nb3Sn wires

✍ Scribed by K. Tachikawa; M. Kobayashi; M. Natsuume; S. Sakai; K. Miyashita

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
262 KB
Volume
34
Category
Article
ISSN
0011-2275

No coin nor oath required. For personal study only.

✦ Synopsis

The simultaneous addition of 0.5 at%Ge to the matrix and 1 at%Ta to the core enhances the Jc of Nb3Sn at 12T by more than one order of magnitude. The increase in the Jc seems to be attributed to the grain refinement of Nb3Sn by the Ge addition. The formation of thin layer richer in Ge is observed at the interface between the Nb3Sn and matrix, which may be effective for reducing the proximity effect among Nb3Sn filaments in the AC use. Ultrafine filamentary Nb3Sn wires with Ge addition to the matrix have been successfully fabricated.

The addition of 0.25 at%Ge to the matrix and 1 at%Ta to the core improves the Qh/Jc ratio at 0.5 T by a factor of nearly four.

πŸ“œ SIMILAR VOLUMES

Bronze-processed Nb3Sn with addition of
Bronze-processed Nb3Sn with addition of germanium to matrix
✍ K Tachikawa; M Terada; M Endo; Y Miyamoto πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 359 KB

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

Effects of HIPping on bronze-processed m
Effects of HIPping on bronze-processed multifilamentary Nb3Sn wires and magnets
✍ Y.S. Hascicek; M.J. Goringe; H. Jones πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 458 KB

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

Some effects of matrix additions to Nb3S
Some effects of matrix additions to Nb3Sn and NbTi multifilamentary superconductors
✍ Eric Gregory; He Liu; Taeyoung Pyon πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 672 KB

The addition of alloying elements to the copper matrix separating the filaments in multifilamentary superconductors can have beneficial effects in the efforts to improve current carrying capacity, Jc, without increasing losses, reducing stability or decreasing ductility and piece length. Examples of