Boundary resistance in SC composite wires and cryogenic stability

Kenji Ishibashi, M. Wake, M. Kobayashi, A. Katase

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

The measurement of transverse resistivity of NbTi composite wires has shown already the existence of a resistive barrier between SC filaments and the copper matrix. The electric and thermal resistances of this barrier are respectively much higher than those of copper matrix and this barrier is expected to have an influence on the cryogenic stability of composite wires. The transverse and longitudinal resistivities are measured for NbTi composite wires which were heat-treated at different temperatures from 300°C to 600°C. These measurements show that the barrier grows with the heat-treatment temperature. From the experimental results, the effect of the barrier on cryogenic stability is estimated to be negligibly small for the composite wire which is heat-treated under the normal condition. As for Nb3Sn composite wires, two different structures of composite wires, each of which has a tantalum or niobium diffusion barrier, are studied and the same measurements as on NbTi composite wires are carried out. The results obtained indicate that the transverse resistivity depends appreciably on the structure of composite wires and that the larger transverse resistivity reduces not only the cryogenic stability, but also requires a larger transfer length at a current lead junction.

元の言語英語
ページ(範囲)161-166
ページ数6
ジャーナルCryogenics
19
発行部数3
DOI
出版物ステータス出版済み - 1 1 1979

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Cryogenics
cryogenics
wire
Wire
composite materials
Composite materials
electrical resistivity
Copper
Niobium
Tantalum
copper
heat
Diffusion barriers
thermal resistance
matrices
tantalum
Heat resistance
niobium
filaments
heat treatment

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

これを引用

Ishibashi, K., Wake, M., Kobayashi, M., & Katase, A. (1979). Boundary resistance in SC composite wires and cryogenic stability. Cryogenics, 19(3), 161-166. https://doi.org/10.1016/0011-2275(79)90047-X

Boundary resistance in SC composite wires and cryogenic stability. / Ishibashi, Kenji; Wake, M.; Kobayashi, M.; Katase, A.

:: Cryogenics, 巻 19, 番号 3, 01.01.1979, p. 161-166.

研究成果: ジャーナルへの寄稿記事

Ishibashi, K, Wake, M, Kobayashi, M & Katase, A 1979, 'Boundary resistance in SC composite wires and cryogenic stability', Cryogenics, 巻. 19, 番号 3, pp. 161-166. https://doi.org/10.1016/0011-2275(79)90047-X
Ishibashi, Kenji ; Wake, M. ; Kobayashi, M. ; Katase, A. / Boundary resistance in SC composite wires and cryogenic stability. :: Cryogenics. 1979 ; 巻 19, 番号 3. pp. 161-166.
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