JP3185467B2 - Oxide superconducting conductor - Google Patents
Oxide superconducting conductorInfo
- Publication number
- JP3185467B2 JP3185467B2 JP10167593A JP10167593A JP3185467B2 JP 3185467 B2 JP3185467 B2 JP 3185467B2 JP 10167593 A JP10167593 A JP 10167593A JP 10167593 A JP10167593 A JP 10167593A JP 3185467 B2 JP3185467 B2 JP 3185467B2
- Authority
- JP
- Japan
- Prior art keywords
- silver
- oxide superconducting
- conductor
- sheath
- superconducting conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は超電導コイル励磁用の電
流リード導体に適した銀シース酸化物超電導導体に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver sheath oxide superconducting conductor suitable for a current lead conductor for exciting a superconducting coil.
【０００２】[0002]
【従来の技術】酸化物超電導導体として、銀を複合材料
として酸化物超電導体を覆い、臨界電流密度の向上と導
体の熱的安定性を実現した導体が知られており、この複
合導体を超電導コイル励磁用の電流リードとして使用す
る試みがなされている。2. Description of the Related Art As an oxide superconducting conductor, a conductor is known in which silver is used as a composite material to cover the oxide superconductor to achieve an improvement in critical current density and thermal stability of the conductor. Attempts have been made to use it as a current lead for coil excitation.
【０００３】[0003]
【発明が解決しようとする課題】ところが、銀をシース
材とした酸化物超電導線材はシース材である銀の熱伝導
率が低温部で非常に大きいため、銀シース線材では高温
部からの熱の侵入に伴う液体ヘリウム等の寒剤の消費量
が多く、電流リード導体としては余り好ましいとはいえ
ない。However, in the case of an oxide superconducting wire using silver as a sheath material, the thermal conductivity of silver as a sheath material is very large at a low temperature part. It consumes a large amount of cryogen such as liquid helium due to intrusion, and is not very preferable as a current lead conductor.
【０００４】本発明の目的は、かかる点に鑑み、電流リ
ード導体に適した銀シース酸化物超電導導体を得ること
にある。[0004] In view of the above, an object of the present invention is to obtain a silver sheath oxide superconductor suitable for a current lead conductor.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するた
め、本発明では、酸化物超電導導体のシース材である銀
に金属性接着剤を拡散させ、シース化された銀そのもの
の熱伝導率を低減させている。In order to achieve the above object, according to the present invention, a metallic adhesive is diffused into silver, which is a sheath material of an oxide superconducting conductor, to reduce the thermal conductivity of the sheathed silver itself. Has been reduced.
【０００６】なお、各導体の酸化物超電導体としては、
イットリウム系、ビスマス系、タリウム系その他多くの
材料が使用できる。The oxide superconductor of each conductor includes:
Yttrium, bismuth, thallium and many other materials can be used.
【０００７】また、銀シース材料としては、銀に微量の
Ａｕ、Ｃｕ、Ｍｎ、Ｎｉ、Ｔｉ等を添加した合金であっ
ても差し支えなく、金属性質接着剤としては、Pb−Sn半
田、In半田等が使用できる。The silver sheath material may be an alloy obtained by adding a small amount of Au, Cu, Mn, Ni, Ti or the like to silver, and Pb-Sn solder, In solder may be used as the metallic adhesive. Etc. can be used.
【０００８】[0008]
【実施例】図面を参照して説明すると、図１は、銀シー
ス酸化物超電導導体の例を示している。DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, FIG. 1 shows an example of a silver sheath oxide superconductor.
【０００９】この導体はステンレスからなる補強材７の
中に５本の銀シース酸化物超電導テープ線材１、２、
３、４及び５が収納され、Pb−Sn半田８で含浸された状
態で格納され、各線材のシース６は夫々Pb−Sn半田８が
拡散されて合金化している。This conductor is composed of five silver-sheathed oxide superconducting tape wires 1, 2, 2 in a reinforcing material 7 made of stainless steel.
3, 4 and 5 are accommodated and stored in a state of being impregnated with Pb-Sn solder 8, and the sheath 6 of each wire is alloyed by diffusion of Pb-Sn solder 8, respectively.
【００１０】銀シース６を合金化する方法としては、各
線材１〜５をPb−Sn半田８と共に補強材７の中に格納し
た後、その導体を熱処理する方法が採用される。As a method for alloying the silver sheath 6, a method is employed in which the wires 1 to 5 are stored in the reinforcing material 7 together with the Pb-Sn solder 8, and then the conductor is heat-treated.
【００１１】このような構成の導体であれば、各線材の
シース６材である銀がPb−Sn半田８の一部と合金化さ
れ、銀そのものの熱伝導率が低減される。With such a conductor, silver, which is the material of the sheath 6 of each wire, is alloyed with a part of the Pb-Sn solder 8, and the thermal conductivity of silver itself is reduced.
【００１２】[0012]
【発明の効果】本発明によれば、次のような効果が得ら
れる。According to the present invention, the following effects can be obtained.
【００１３】(1) 金属性質接着剤と銀の合金化で銀の熱
伝導率が小さくなり、超電導導体の低熱侵入性が向上す
るので、これを電流リード用導体として使用した場合、
寒剤の消費量を低減することができる。(1) Since the thermal conductivity of silver is reduced by alloying silver with a metallic property adhesive and the low heat penetration of the superconducting conductor is improved, when this is used as a current lead conductor,
The consumption of the cryogen can be reduced.
【００１４】(2) 金属性接着剤と銀の合金化により、シ
ース材の高い抵抗かが実現され、交流モードでの使用に
有利な導体となる。(2) Due to the alloying of the metallic adhesive and silver, a high resistance of the sheath material is realized, and the conductor material is advantageous for use in the AC mode.
【図１】本発明に係る酸化物超電導導体の一実施例を示
す説明図。FIG. 1 is an explanatory view showing one embodiment of an oxide superconducting conductor according to the present invention.
１〜５ 銀シース酸化物超電導線材 ６ 銀シース ７ ステンレス製の補強材 ８ 金属性接着剤としてのPb−Sn半田 1-5 silver sheath oxide superconducting wire 6 silver sheath 7 stainless steel reinforcing material 8 Pb-Sn solder as metallic adhesive
Claims (1)
導線材の複数が集合され、その集合体に金属性接着剤が
含浸され、前記酸化物超電導線材のシース材は前記金属
性接着剤が拡散されて合金化していることを特徴とする
酸化物超電導導体。 A plurality of oxide superconducting wires each having silver or a silver alloy as a sheath material are assembled, and a metal adhesive is attached to the assembly.
The impregnated sheath material of the oxide superconducting wire is characterized in that the metallic adhesive is diffused and alloyed.
Oxide superconducting conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10167593A JP3185467B2 (en) | 1993-04-28 | 1993-04-28 | Oxide superconducting conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10167593A JP3185467B2 (en) | 1993-04-28 | 1993-04-28 | Oxide superconducting conductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06309955A JPH06309955A (en) | 1994-11-04 |
| JP3185467B2 true JP3185467B2 (en) | 2001-07-09 |
Family
ID=14306939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10167593A Expired - Fee Related JP3185467B2 (en) | 1993-04-28 | 1993-04-28 | Oxide superconducting conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3185467B2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6110606A (en) * | 1996-08-30 | 2000-08-29 | American Superconductor Corporation | Cryogen protected superconducting ceramic tape |
| DE19746975C1 (en) * | 1997-10-24 | 1999-03-11 | Abb Research Ltd | Alloying of a precious metal by-pass layer of a high temperature superconductor |
| JP2002528848A (en) * | 1998-02-10 | 2002-09-03 | アメリカン スーパーコンダクター コーポレイション | Superconducting composite with high sheath resistivity |
| US6762673B1 (en) * | 1998-02-10 | 2004-07-13 | American Superconductor Corp. | Current limiting composite material |
| GB9805639D0 (en) | 1998-03-18 | 1998-05-13 | Metal Manufactures Ltd | Superconducting tapes for alternating current and cables and other conductors in which they are used |
| GB9805641D0 (en) | 1998-03-18 | 1998-05-13 | Metal Manufactures Ltd | Superconducting tapes |
| GB9805644D0 (en) | 1998-03-18 | 1998-05-13 | Metal Manufactures Ltd | Superconducting tapes |
| US6444917B1 (en) | 1999-07-23 | 2002-09-03 | American Superconductor Corporation | Encapsulated ceramic superconductors |
| JP4599807B2 (en) * | 2003-05-01 | 2010-12-15 | 富士電機システムズ株式会社 | Current leads for superconducting equipment |
| JP2008282584A (en) * | 2007-05-08 | 2008-11-20 | Sumitomo Electric Ind Ltd | Superconducting tape and manufacturing method therefor |
| EP2838090A4 (en) * | 2012-04-10 | 2015-09-23 | Sumitomo Electric Industries | Oxide superconducting wire having reinforcing materials |
| EP2675029A1 (en) * | 2012-06-12 | 2013-12-18 | Vision Electric GmbH | HTSC busbar and HTSC busbarsystem |
| CN110060864B (en) * | 2019-04-17 | 2020-11-27 | 华北电力大学 | Method for improving transverse resistivity of uninsulated high-temperature superconducting double-pancake coil |
-
1993
- 1993-04-28 JP JP10167593A patent/JP3185467B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06309955A (en) | 1994-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010403 |
|
| LAPS | Cancellation because of no payment of annual fees |