JPH05325661A - Superconductor - Google Patents
SuperconductorInfo
- Publication number
- JPH05325661A JPH05325661A JP4123693A JP12369392A JPH05325661A JP H05325661 A JPH05325661 A JP H05325661A JP 4123693 A JP4123693 A JP 4123693A JP 12369392 A JP12369392 A JP 12369392A JP H05325661 A JPH05325661 A JP H05325661A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- coating layer
- thickness
- stabilizing material
- aluminum
- 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.)
- Pending
Links
- 239000002887 superconductor Substances 0.000 title abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 64
- 229910052802 copper Inorganic materials 0.000 claims abstract description 64
- 239000010949 copper Substances 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 55
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000011247 coating layer Substances 0.000 claims abstract description 32
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 30
- 239000004020 conductor Substances 0.000 claims description 29
- 229910000679 solder Inorganic materials 0.000 abstract description 8
- 239000010410 layer Substances 0.000 abstract description 7
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000007747 plating Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 abstract 1
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 3
- 230000005355 Hall effect Effects 0.000 description 2
- 239000006084 composite stabilizer Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、大型の超電導マグネッ
トなどの線材として使われる安定化材を備えた超電導導
体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superconducting conductor provided with a stabilizing material used as a wire for large-sized superconducting magnets.
【０００２】[0002]
【従来の技術】周知のように、核融合炉、エネルギ貯蔵
施設、ハイブリッド・マグネット、加速器などでは大型
の超電導マグネットを必要とする。このような大型の超
電導マグネットを形成する場合、コイルを構成する超電
導導体としては、常電導状態に転移したときの安全性の
確保、運転の継続確保、常電導状態から超電導状態への
自然回復の確保などの点から通常、超電導線に銅、アル
ミニウム、銅とアルミニウムの複合体などの安定化材を
添設したものが用いられる。As is well known, large-scale superconducting magnets are required in nuclear fusion reactors, energy storage facilities, hybrid magnets, accelerators and the like. When forming such a large-sized superconducting magnet, the superconducting conductor that constitutes the coil is to ensure safety when the state changes to the normal conducting state, to ensure continuous operation, and to naturally recover from the normal conducting state to the superconducting state. From the point of view of securing, a superconducting wire is usually used with a stabilizing material such as copper, aluminum, or a composite of copper and aluminum.
【０００３】ところで、銅は磁気抵抗効果が大きいた
め、高磁界において比抵抗が大きい。このため、安定化
材として銅だけを用いた超電導導体では十分な安定性が
得られない。一方、アルミニウムは磁気抵抗効果が小さ
く、高磁界での比抵抗が小さい。しかし反面、ハンダと
の接着性が悪く、しかも機械的強度性に劣る。このた
め、安定化材としてアルミニウムだけを使用しようとす
ると、超電導導体の製作が困難なものとなる。By the way, since copper has a large magnetoresistive effect, it has a large specific resistance in a high magnetic field. Therefore, a superconducting conductor using only copper as a stabilizing material cannot provide sufficient stability. On the other hand, aluminum has a small magnetoresistance effect and a small specific resistance in a high magnetic field. However, on the other hand, the adhesion to solder is poor and the mechanical strength is poor. Therefore, if only aluminum is used as the stabilizing material, it becomes difficult to manufacture the superconducting conductor.
【０００４】このようなことから、図８に示すように、
銅とアルミニウムの複合体を安定化材として使用してい
る超電導導体１が多い。すなわち、この超電導導体１
は、銅安定化材２中に銅マトリックスのＮｂ3 Ｓｎある
いはＮｂＴｉからなる超電導線３を埋込むとともに、銅
安定化材２の外面に超電導線３に沿って延びる溝４を設
け、この溝４内に厚さがたとえば２００μｍの銅の被覆
層５を備えたアルミニウム材６、つまり銅クラッド・ア
ルミ材７をハンダを介して装着し、銅安定化材２と銅ク
ラッド・アルミ材７とで安定化材８を構成したものとな
っている。銅の被覆層５はメッキなどによって形成さ
れ、ハンダとの接着性に寄与している。From the above, as shown in FIG.
Many superconducting conductors 1 use a composite of copper and aluminum as a stabilizer. That is, this superconducting conductor 1
Embedded in the copper stabilizing material 2 is a superconducting wire 3 made of Nb 3 Sn or NbTi of a copper matrix, and a groove 4 extending along the superconducting wire 3 is provided on the outer surface of the copper stabilizing material 2. An aluminum material 6 having a copper coating layer 5 with a thickness of, for example, 200 μm, that is, a copper clad aluminum material 7 is mounted via solder, and is stabilized by the copper stabilizing material 2 and the copper clad aluminum material 7. The chemical material 8 is configured. The copper coating layer 5 is formed by plating or the like and contributes to the adhesiveness with solder.
【０００５】しかしながら、上記のように銅とアルミニ
ウムの複合体を安定化材８として用いた超電導導体１に
あっても、高磁界中において安定化材８の合成比抵抗を
実際に測定してみると、設計計算値に比べて異常に高
く、アルミニウム材６を加えた効果がほとんどないこと
が判明した。また、安定性の実証実験においても満足で
きる結果は得られなかった。However, even in the case of the superconducting conductor 1 using the composite of copper and aluminum as the stabilizing material 8 as described above, the composite specific resistance of the stabilizing material 8 is actually measured in a high magnetic field. Then, it was found that the value was abnormally high compared to the design calculation value, and there was almost no effect of adding the aluminum material 6. In addition, satisfactory results were not obtained in the stability verification test.
【０００６】[0006]
【発明が解決しようとする課題】上述の如く、従来、安
定性に優れていると言われている、銅とアルミニウムの
複合体を安定化材として用いた超電導導体にあっても、
実際には十分な安定性が得られないことが判った。そこ
で本発明は、銅とアルミニウムの複合体を安定化材とし
て用い、しかも安定性に優れた超電導導体を提供するこ
とを目的としている。As described above, even in the case of a superconducting conductor using a composite of copper and aluminum as a stabilizing material, which is conventionally said to have excellent stability,
It turned out that sufficient stability was not actually obtained. Therefore, an object of the present invention is to provide a superconducting conductor which uses a composite of copper and aluminum as a stabilizing material and is excellent in stability.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る超電導導体では、安定化材が銅の被覆
層を備えたアルミニウム材を含んでおり、かつ上記銅の
被覆層の厚みが３５μｍ以下に設定されている。In order to achieve the above object, in a superconducting conductor according to the present invention, a stabilizing material includes an aluminum material having a copper coating layer, and The thickness is set to 35 μm or less.
【０００８】[0008]
【作用】上記構成であると、５テスラ以上の高磁界中に
おいて、複合安定化材の実測比抵抗と計算比抵抗との比
を従来のものに較べて３０％以上低下させることができ
る。つまり、アルミニウム材を加えたことによる効果を
有効に引き出すことができ、超電導導体の安定性を向上
させることができる。With the above structure, in a high magnetic field of 5 tesla or more, the ratio of the measured specific resistance and the calculated specific resistance of the composite stabilizing material can be reduced by 30% or more as compared with the conventional one. That is, the effect of adding the aluminum material can be effectively brought out, and the stability of the superconducting conductor can be improved.
【０００９】この理由は定かではないが次のように推測
される。金属には電流の流れる方向と垂直な方向に磁界
が印加されると、電流・磁界に対して垂直な方向に電場
が生じ、起電力が現れる。この現象はホール効果と呼ば
れている。このホール効果で生じる電圧は、電流と磁界
の積にある係数をもって比例する。この係数はホール係
数と呼ばれているが、銅とアルミニウムとではその係数
の正負が逆転している。このため、銅とアルミニウムか
ら構成される複合安定化材の軸方向に対して垂直な方向
に電流のループができ、これが軸方向の電流の流れに対
して抵抗になると予測される。この予測に立脚すると、
銅の被覆層の厚みが増加すれば銅に流れる電流値も増加
し、起電力差も大きくなり、ループ電流も増加する。事
実、銅の被覆層の厚みと磁界の増加に対して、複合安定
化材の実測比抵抗と計算比抵抗の比が増加すると言う実
験結果を定性的に説明できる。したがって、銅の被覆層
の一部または全部の厚みが薄くなるか、零になれば、ル
ープ電流の流れる厚さが制限されるため、ホール起電力
の差が小さくなり、ループ電流が減少し、実測比抵抗と
計算比抵抗との比が低下するものと予測される。The reason for this is not clear, but it is presumed as follows. When a magnetic field is applied to metal in a direction perpendicular to the direction of current flow, an electric field is generated in a direction perpendicular to the current / magnetic field, and electromotive force appears. This phenomenon is called the Hall effect. The voltage produced by this Hall effect is proportional to the product of the current and the magnetic field. This coefficient is called the Hall coefficient, but the positive and negative of the coefficient are reversed between copper and aluminum. Therefore, a current loop is formed in a direction perpendicular to the axial direction of the composite stabilizer made of copper and aluminum, which is expected to become a resistance against the current flow in the axial direction. Building on this prediction,
When the thickness of the copper coating layer increases, the current value flowing through the copper also increases, the electromotive force difference also increases, and the loop current also increases. In fact, it is possible to qualitatively explain the experimental result that the ratio of the measured resistivity and the calculated resistivity of the composite stabilizer increases with the increase of the copper coating layer thickness and the magnetic field. Therefore, if the thickness of part or all of the copper coating layer becomes thin or becomes zero, the thickness of the loop current flows is limited, so the difference in Hall electromotive force becomes smaller, and the loop current decreases. It is predicted that the ratio between the measured resistivity and the calculated resistivity will decrease.
【００１０】[0010]
【実施例】以下、図面を参照しながら実施例を説明す
る。図１には本発明の一実施例に係る超電導導体の横断
面図が示されている。なお、この図では図８と同一部分
が同一符号で示されている。Embodiments will be described below with reference to the drawings. FIG. 1 shows a cross-sectional view of a superconducting conductor according to an embodiment of the present invention. In this figure, the same parts as those in FIG. 8 are designated by the same reference numerals.
【００１１】この実施例に係る超電導導体１１は、銅安
定化材２の中に銅マトリックスのＮｂ3 ＳｎあるいはＮ
ｂＴｉなどからなる超電導線３を埋込むとともに、銅安
定化材２の外面に超電導線３に沿って延びる溝４を設
け、この溝４内に銅の被覆層１２を備えたアルミニウム
材１３、つまり銅クラッド・アルミ材１４をハンダを介
して装着し、銅安定化材２と銅クラッド・アルミ材１４
とで安定化材１５を構成している。In the superconducting conductor 11 according to this embodiment, the copper stabilizing material 2 contains Nb 3 Sn or N in a copper matrix.
A superconducting wire 3 made of bTi or the like is embedded, and a groove 4 extending along the superconducting wire 3 is provided on the outer surface of the copper stabilizing material 2, and an aluminum material 13 having a copper coating layer 12 in the groove 4, that is, The copper clad / aluminum material 14 is attached via solder, and the copper stabilizing material 2 and the copper clad / aluminum material 14 are attached.
And constitute the stabilizing material 15.
【００１２】銅の被覆層１２はメッキなどによって形成
されており、その厚みは３５μｍ以下、この例では３０
μｍに設定されている。この被覆層１２のうち、溝４内
に位置している部分はハンダとの接着性に寄与してい
る。このような構成であると、超電導導体１１の安定性
を大幅に向上させることができる。The copper coating layer 12 is formed by plating or the like, and has a thickness of 35 μm or less, in this example, 30.
It is set to μm. The portion of the coating layer 12 located in the groove 4 contributes to the adhesiveness with the solder. With such a structure, the stability of the superconducting conductor 11 can be significantly improved.
【００１３】すなわち、図１に示される超電導導体１１
と図８に示される従来の超電導導体１との安定性を比較
してみた。なお、両者とも安定化材として使用している
銅とアルミニウムとの比が３：１となるように構成し
た。これらの導体を用いてコイルを作製し、安定化の目
安となる常電導状態に転移した後に超電導状態に戻る電
流（回復電流）を比較した。その結果、銅の被覆層１２
の厚みが３０μｍである本発明の導体は１０００Ａ以上
であった。これに対して、銅の被覆層の厚みが２００μ
ｍである従来の導体のそれは７００Ａ以下であった。本
発明の適用によって４０％以上の安定性の向上が確認さ
れた。That is, the superconducting conductor 11 shown in FIG.
And the stability of the conventional superconducting conductor 1 shown in FIG. 8 were compared. In addition, both were configured so that the ratio of copper to aluminum used as a stabilizing material was 3: 1. A coil was produced using these conductors, and the currents (recovery currents) that returned to the superconducting state after the transition to the normal conducting state, which is a standard for stabilization, were compared. As a result, the copper coating layer 12
The conductor of the present invention having a thickness of 30 μm was 1000 A or more. On the other hand, the thickness of the copper coating layer is 200μ
That of the conventional conductor having m is 700 A or less. It was confirmed that the application of the present invention improved the stability by 40% or more.
【００１４】また、発明者らは銅の被覆層１２の厚みの
限界を確認するために次のような実験を行った。すなわ
ち、アルミニウム線に厚さ１０、２０、３０、４０、４
５μｍの銅の被覆層を施した直径１mmの銅クラッド・ア
ルミ線を作製し、これらに４．２Ｋ中で０〜７テスラの
磁界を印加し、そのときの電気抵抗を測定してみた。そ
の結果、図２に示すデータを得た。なお、横軸は銅の被
覆層の厚みを示し、縦軸は実測比抵抗と計算による比抵
抗との比を示している。この図から判るように、磁界お
よび銅の被覆層の厚みの増加にともなって実測比抵抗と
計算による比抵抗との比が急激に増加している。たとえ
ば、最も応用範囲が広い６テスラ近くの場合を例にとる
と、銅の被覆層の厚みが３５μｍ以下では実測比抵抗／
計算比抵抗の比が２倍程度以下であるのに対して、銅の
被覆層の厚みが４０μｍを越えると２．６倍以上、つま
り３０％以上増加している。したがって、銅の被覆層１
２の厚みは３５μｍ以下でハンダ接合に支障を与えない
範囲に設定する必要があると言える。The inventors also conducted the following experiment in order to confirm the limit of the thickness of the copper coating layer 12. That is, the thickness of aluminum wire is 10, 20, 30, 40, 4
A copper clad aluminum wire having a diameter of 1 mm and having a copper coating layer of 5 μm was produced, and a magnetic field of 0 to 7 Tesla was applied to these at 4.2 K, and the electric resistance at that time was measured. As a result, the data shown in FIG. 2 was obtained. The horizontal axis represents the thickness of the copper coating layer, and the vertical axis represents the ratio of the measured specific resistance to the calculated specific resistance. As can be seen from this figure, the ratio between the measured specific resistance and the calculated specific resistance sharply increases as the magnetic field and the thickness of the copper coating layer increase. For example, taking the case of 6 Tesla, which has the widest application range, as an example, when the thickness of the copper coating layer is 35 μm or less, the measured specific resistance /
While the ratio of the calculated specific resistance is about 2 times or less, when the thickness of the copper coating layer exceeds 40 μm, it increases 2.6 times or more, that is, 30% or more. Therefore, the copper coating layer 1
It can be said that the thickness of No. 2 is 35 μm or less and needs to be set in a range that does not hinder solder joining.
【００１５】なお、本発明は上述した実施例に限定され
るものではない。すなわち、上述した実施例では、銅ク
ラッド・アルミ材１４の一部を露出させているが、図３
に示すように銅クラッド・アルミ材１４を銅安定化材２
中に完全に埋め込むようにし、被覆層１２の一部を電気
的な接触のない空胴や真空層１６で覆うようにしてもよ
い。また、空胴や真空層１６に代えて図４に示すように
絶縁材１７で覆うようにしてもよい。また、上述した各
例ではアルミニウム材１３の外周面全体に厚さが３５μ
ｍ以下の銅の被覆層１２を設けているが、ハンダ接合に
供されない部分については被覆層１２を除いてもよく、
たとえば図５に示すように、アルミニウム材１３の３辺
だけに３５μｍ以下の銅の被覆層１２を設け、この被覆
層１２を使って銅安定化材２にハンダ接合し、アルミニ
ウム材１３の残りの１辺を電気的な接触のない空胴や真
空層１６で覆うようにしてもよい。空胴や真空層１６に
代えて図６に示すように絶縁材１７で覆うようにしても
よい。また、上述した各例では、銅安定化材２を設けて
いるが、図７に示すように銅クラッド・アルミ材１４だ
けで安定化材１５ａを構成してもよい。この場合も銅の
被覆層１２の厚みは３５μｍ以下に設定する必要があ
る。その他、本発明の要旨を逸脱しない範囲で種々変形
実施することができる。The present invention is not limited to the above embodiment. That is, in the above-described embodiment, a part of the copper clad / aluminum material 14 is exposed.
As shown in, the copper clad aluminum material 14 is replaced with the copper stabilizer 2
Alternatively, the coating layer 12 may be completely embedded, and a part of the coating layer 12 may be covered with a cavity or a vacuum layer 16 having no electrical contact. Further, instead of the cavity or the vacuum layer 16, it may be covered with an insulating material 17 as shown in FIG. Further, in each of the above-described examples, the thickness of the entire outer peripheral surface of the aluminum material 13 is 35 μm.
Although the copper coating layer 12 having a thickness of m or less is provided, the coating layer 12 may be removed for a portion not used for soldering,
For example, as shown in FIG. 5, a copper coating layer 12 having a thickness of 35 μm or less is provided on only three sides of the aluminum material 13, and the copper stabilizing material 2 is solder-bonded using the coating layer 12 and the remaining portion of the aluminum material 13 is removed. You may make it cover one side with the cavity or the vacuum layer 16 which does not make electrical contact. Instead of the cavity or the vacuum layer 16, it may be covered with an insulating material 17 as shown in FIG. Further, in each of the above-described examples, the copper stabilizing material 2 is provided, but as shown in FIG. 7, the stabilizing material 15a may be composed of only the copper clad / aluminum material 14. Also in this case, the thickness of the copper coating layer 12 needs to be set to 35 μm or less. Besides, various modifications can be made without departing from the scope of the present invention.
【００１６】[0016]
【発明の効果】以上のように、本発明によれば、製作性
を低下させることなく、安定性を向上させることができ
る。As described above, according to the present invention, stability can be improved without lowering manufacturability.
【図１】本発明の第１の実施例に係る超電導導体の横断
面図FIG. 1 is a transverse sectional view of a superconducting conductor according to a first embodiment of the present invention.
【図２】磁界中におかれたときの銅の被覆層の影響を調
べた実験結果を示す図FIG. 2 is a diagram showing experimental results for examining the effect of a copper coating layer when placed in a magnetic field.
【図３】本発明の第２の実施例に係る超電導導体の横断
面図FIG. 3 is a transverse sectional view of a superconducting conductor according to a second embodiment of the present invention.
【図４】本発明の第３の実施例に係る超電導導体の横断
面図FIG. 4 is a transverse sectional view of a superconducting conductor according to a third embodiment of the present invention.
【図５】本発明の第４の実施例に係る超電導導体の横断
面図FIG. 5 is a cross-sectional view of a superconducting conductor according to a fourth embodiment of the present invention.
【図６】本発明の第５の実施例に係る超電導導体の横断
面図FIG. 6 is a cross sectional view of a superconducting conductor according to a fifth embodiment of the present invention.
【図７】本発明の第６の実施例に係る超電導導体の横断
面図FIG. 7 is a transverse sectional view of a superconducting conductor according to a sixth embodiment of the present invention.
【図８】従来の超電導導体の横断面図FIG. 8 is a cross-sectional view of a conventional superconducting conductor.
２…銅安定化材 ３…超電導線 ４…溝 １１，１１ａ，１１ｂ，１１ｃ，１１ｄ，
１１ｅ…超電導導体 １２…銅の被覆層 １３…アルミニ
ウム材 １４…銅クラッド・アルミ材 １５，１５ａ…
安定化材 １６…空胴または真空層 １７…絶縁材2 ... Copper stabilizing material 3 ... Superconducting wire 4 ... Grooves 11, 11a, 11b, 11c, 11d,
11e ... Superconducting conductor 12 ... Copper coating layer 13 ... Aluminum material 14 ... Copper clad aluminum material 15, 15a ...
Stabilizing material 16 ... Cavity or vacuum layer 17 ... Insulating material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 実 神奈川県川崎市幸区小向東芝町１番地 株 式会社東芝総合研究所内 (72)発明者 藤岡 勉 東京都港区芝浦一丁目１番１号 株式会社 東芝本社事務所内 (72)発明者 花井 哲 神奈川県横浜市鶴見区末広町２丁目４番地 株式会社東芝京浜事業所内 (72)発明者 和智 良裕 神奈川県横浜市鶴見区末広町２丁目４番地 株式会社東芝京浜事業所内 (72)発明者 市原 政光 神奈川県川崎市川崎区小田栄二丁目１番１ 号 昭和電線電纜株式会社内 (72)発明者 青木 伸夫 神奈川県川崎市川崎区小田栄二丁目１番１ 号 昭和電線電纜株式会社内 (72)発明者 袴田 真志 神奈川県川崎市川崎区小田栄二丁目１番１ 号 昭和電線電纜株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minoru Tanaka, 1 Komukai Toshiba-cho, Sachi-ku, Kawasaki-shi, Kanagawa Prefecture, Toshiba Research Institute Ltd. (72) Inventor Tsutomu Fujioka 1-1-1, Shibaura, Minato-ku, Tokyo Issued at Toshiba Headquarters Office (72) Inventor Satoshi Hanai 2-4 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Inside Keihin Plant, Toshiba Corporation (72) Yoshihiro Wachi 2-cue, Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa 4 In Toshiba Keihin Office (72) Inventor Masamitsu Ichihara 1-1-1, Oda Eikawa, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Showa Electric Cable Co., Ltd. (72) Nobuo Aoki Oda-ei 2-chome, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1 No. 1 Showa Electric Wire & Cable Co., Ltd. (72) Inventor Masashi Hakada No. 1-1 Eda Oda 2-chome, Kawasaki-ku, Kawasaki-shi, Kanagawa Showa Electric Cable Denki Co., Ltd.
Claims (1)
導体において、前記安定化材は銅の被覆層を備えたアル
ミニウム材を含み、上記銅の被覆層は厚みが３５μｍ以
下であることを特徴とする超電導導体。1. A superconducting conductor comprising a stabilizing material attached to a superconducting wire, wherein the stabilizing material includes an aluminum material having a copper coating layer, and the copper coating layer has a thickness of 35 μm or less. A superconducting conductor characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4123693A JPH05325661A (en) | 1992-05-15 | 1992-05-15 | Superconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4123693A JPH05325661A (en) | 1992-05-15 | 1992-05-15 | Superconductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05325661A true JPH05325661A (en) | 1993-12-10 |
Family
ID=14866993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4123693A Pending JPH05325661A (en) | 1992-05-15 | 1992-05-15 | Superconductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05325661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009544113A (en) * | 2006-07-14 | 2009-12-10 | シーメンス マグネット テクノロジー リミテッド | Channel superconductor with built-in wire |
-
1992
- 1992-05-15 JP JP4123693A patent/JPH05325661A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009544113A (en) * | 2006-07-14 | 2009-12-10 | シーメンス マグネット テクノロジー リミテッド | Channel superconductor with built-in wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3428926A (en) | Superconductor cable surrounded by a plurality of aluminum wires | |
| US4151498A (en) | Combined superconducting coil | |
| US4564564A (en) | Superconducting magnet wire | |
| JPH05325661A (en) | Superconductor | |
| US3440336A (en) | Web-shaped superconductor | |
| US3391362A (en) | Superconducting magnet coil | |
| JPS60100487A (en) | Permanent current switch | |
| JP3354171B2 (en) | Composite superconductor and superconducting coil | |
| EP0067330B2 (en) | Coil for a superconducting magnet device | |
| JP3356459B2 (en) | Superconducting coil | |
| US5247271A (en) | Superconducting solenoid coil | |
| JP3272017B2 (en) | AC superconducting wire and method of manufacturing the same | |
| JPH03150806A (en) | Superconductor | |
| JP3120626B2 (en) | Oxide superconducting conductor | |
| JPS63200506A (en) | Superconducting magnet | |
| JP2699732B2 (en) | Superconducting conductor and stabilizing material used therefor | |
| JP2525016B2 (en) | Superconducting wire | |
| JPH0412412A (en) | Superconductive conductor | |
| JPH04116904A (en) | Coil | |
| JPH08125242A (en) | Permanent current switch | |
| JPS6215803A (en) | Superconductive coil | |
| JPH0721851A (en) | Stabilizing material for superconductor | |
| GB1137459A (en) | Superconductor magnetic coils | |
| JP3352735B2 (en) | Superconducting flexible cable | |
| JPH06223641A (en) | Superconductor and superconducting current limiter trigger coil using same |