Improvement of dissipative property in HTS coil impregnated with solid nitrogen

T. Nakamura, Kohei Higashikawa, I. Muta, A. Fujio, K. Okude, T. Hoshino

研究成果: ジャーナルへの寄稿Conference article

16 引用 (Scopus)

抄録

Dissipative property of high-Tc superconducting (HTS) coil impregnated with solid nitrogen was investigated. Small HTS solenoid coil was fabricated with the use of Bi-2223/Ag multifilamentary tape. Nitrogen was solidified by conduction cooling with Gifford-Macmafon cryocooler at cooling rate of 1 mKs-1. Voltage as well as temperature of the coil was measured by applying the thermal disturbance and bias current. It was shown that the dissipation was reduced drastically by impregnating with solid nitrogen. Furthermore, the properties were also improved by pressurization in the sample chamber. This pressure effect may be due to the suppression of sublimation at the interface between the solid nitrogen and the coil.

元の言語英語
ページ(範囲)415-418
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
386
DOI
出版物ステータス出版済み - 4 15 2003
外部発表Yes
イベントICMC 2002 - Xi an, 中国
継続期間: 6 16 20026 20 2002

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solid nitrogen
Nitrogen
coils
Cooling
impregnating
cooling
Pressure effects
Bias currents
Pressurization
Solenoids
Sublimation
pressure effects
solenoids
sublimation
Tapes
tapes
disturbances
dissipation
chambers
retarding

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

これを引用

Improvement of dissipative property in HTS coil impregnated with solid nitrogen. / Nakamura, T.; Higashikawa, Kohei; Muta, I.; Fujio, A.; Okude, K.; Hoshino, T.

:: Physica C: Superconductivity and its applications, 巻 386, 15.04.2003, p. 415-418.

研究成果: ジャーナルへの寄稿Conference article

Nakamura, T. ; Higashikawa, Kohei ; Muta, I. ; Fujio, A. ; Okude, K. ; Hoshino, T. / Improvement of dissipative property in HTS coil impregnated with solid nitrogen. :: Physica C: Superconductivity and its applications. 2003 ; 巻 386. pp. 415-418.
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AU - Nakamura, T.

AU - Higashikawa, Kohei

AU - Muta, I.

AU - Fujio, A.

AU - Okude, K.

AU - Hoshino, T.

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AB - Dissipative property of high-Tc superconducting (HTS) coil impregnated with solid nitrogen was investigated. Small HTS solenoid coil was fabricated with the use of Bi-2223/Ag multifilamentary tape. Nitrogen was solidified by conduction cooling with Gifford-Macmafon cryocooler at cooling rate of 1 mKs-1. Voltage as well as temperature of the coil was measured by applying the thermal disturbance and bias current. It was shown that the dissipation was reduced drastically by impregnating with solid nitrogen. Furthermore, the properties were also improved by pressurization in the sample chamber. This pressure effect may be due to the suppression of sublimation at the interface between the solid nitrogen and the coil.

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