JPS5952492B2 - Method for manufacturing a cable core consisting of a plurality of unit cores having an intermetallic compound-based superconducting coating - Google Patents
Method for manufacturing a cable core consisting of a plurality of unit cores having an intermetallic compound-based superconducting coatingInfo
- Publication number
- JPS5952492B2 JPS5952492B2 JP53000102A JP10278A JPS5952492B2 JP S5952492 B2 JPS5952492 B2 JP S5952492B2 JP 53000102 A JP53000102 A JP 53000102A JP 10278 A JP10278 A JP 10278A JP S5952492 B2 JPS5952492 B2 JP S5952492B2
- Authority
- JP
- Japan
- Prior art keywords
- intermetallic compound
- unit
- core
- layer
- superconducting
- 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.)
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Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/80—Constructional details
Description
【発明の詳細な説明】
本発明は超導電ケーブルの製造方法、さらに特定すれば
金属間化合物基の超導電被覆を有する複数の単位コーア
からなるケーブルコーアの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a superconducting cable, and more particularly to a method for manufacturing a cable core comprising a plurality of unit cores having an intermetallic compound-based superconducting coating.
超導電被覆を有するケーブルコーアを有する電気装置の
信頼性は、個々の単位コーアを相互に接合する領域の超
導電被覆の性質によつて決定される。The reliability of an electrical device having a cable core with a superconducting coating is determined by the properties of the superconducting coating in the areas that join the individual unit cores to each other.
単位コーア間の接合部は超導電性でなければ、ケーブル
コーアの全周囲にそつて超導電体の電流容量が確保され
ねばならない。しかも接合部の強度はコーアの強度と同
等でなければならないｏ
単位コーアの超導電被覆は、組成が金属間化合物である
ので、この接合が特に困難である。Unless the joint between unit cores is superconducting, the current carrying capacity of the superconductor must be ensured along the entire circumference of the cable core. Moreover, the strength of the joint must be equal to the strength of the core. Since the superconducting coating of the unit core is composed of an intermetallic compound, this joining is particularly difficult.
この接合は溶接または拡散によつて行なうが、どちらの
場合も接合部の超導電性が適当ではない。金属間化合物
基の超導電被覆を有する複数の単位コーアからなるケー
ブルコーアの公知の製造方法（米国特許３５２３３６１
号、Ｃｌ２９−５９９、１９７０参照）においては、超
導電ケーブルの２つの単位コーアの端を、機械的に粉砕
された金属間化合物の成分の混合物中におき、接合部を
加圧熱処理する。この接合部は強度が十分でないので、
剛性の超導電ケーブルは電流負荷コーアにかかる熱負荷
に耐えることができない。This joining is done by welding or by diffusion, but in both cases the superconductivity of the joint is inadequate. A known method for manufacturing a cable core consisting of a plurality of unit cores having an intermetallic compound-based superconducting coating (U.S. Pat. No. 3,523,361)
No. Cl 29-599, 1970), the ends of two unit cores of a superconducting cable are placed in a mixture of mechanically ground intermetallic components and the joints are heat treated under pressure. This joint is not strong enough, so
Rigid superconducting cables cannot withstand the thermal loads placed on the current load core.
この製造方法によるケーブルコーアは特殊な熱補償手段
を必要とする。このためケーブルコーアの設計が非常に
複雑とならざるを得ない。さらに接合部の超導電性は、
酸化”物膜の破壊と拡散処理とによつて形成される過度
領域要素と超導電体の端との間の界面接合によつて決定
される。この接合において酸化物膜の破壊がランダム過
程であることに留意すべきである。さらに金属間化合物
基の超導電被覆を有する複阿数の単位コーアからなるケ
ーブルコーアの他の公知の製造方法（フランス特許第２
１９２７４４号、ＣｌｓＨＣｌ６／１１／００、１９７
４）においては、金属間化合物の高融点成分からなる層
を有するコーア素材に超導電層を拡散によつて形成し、
次に個々゛の単位コーアを溶接して複数の単位コーアか
らなるケーブルコーアを製造する。このフランス特許の
方法は、スポツト溶接によるので、ケーブルコーアの電
流容量が劣化する。Cable cores made with this manufacturing method require special thermal compensation means. Therefore, the design of the cable core has to be extremely complicated. Furthermore, the superconductivity of the junction is
It is determined by the interfacial bond between the edge of the superconductor and the transient region element formed by the oxide film breakdown and the diffusion process. In this junction, the oxide film breakdown is a random process. Furthermore, it should be noted that other known methods for producing cable cores consisting of multi-unit cores with intermetallic-based superconducting coatings (French Patent No. 2)
No. 192744, ClsHCl6/11/00, 197
In 4), a superconducting layer is formed by diffusion on a core material having a layer made of a high melting point component of an intermetallic compound,
Next, the individual unit cores are welded to produce a cable core consisting of a plurality of unit cores. Since the method of this French patent uses spot welding, the current carrying capacity of the cable core is degraded.
従つてこの方法は、共軸導体を有する剛性ケーブルの単
位コーアの結合に応用することは困難である。これは共
軸間隙において超導電層が相互に向かい合つて配置され
ているためである。さらにこの方法は、接合部において
強度と超導電性とを単位コーアにおけると同程度にする
には、接合部においてケーブル直径を相当大きくしなけ
ればならない。本発明の目的は、金属間化合物基の超導
電被覆を有する複数の単位コーアからなる、電流容量の
大きいケーブルコーアの製造方法を提供することである
。Therefore, this method is difficult to apply to the connection of unit cores of rigid cables having coaxial conductors. This is because the superconducting layers are placed opposite each other in the coaxial gap. Additionally, this method requires a considerably larger cable diameter at the joint to achieve the same strength and superconductivity at the joint as in a unit core. An object of the present invention is to provide a method for manufacturing a cable core having a large current capacity and consisting of a plurality of unit cores having an intermetallic compound-based superconducting coating.
本発明の他の目的は、単位コーア相互間の接合部の信頼
性を改良することである。Another object of the invention is to improve the reliability of the joints between unit cores.
本発明の本質的な目的は、金属間化合物基の超導電被覆
を有する複数の単位コーアからなり、単位コーア相互間
の接合部が溶接点において超導電性を損なうことのない
ケーブルコーアの製造方法を提供することである。An essential object of the present invention is a method for manufacturing a cable core that is composed of a plurality of unit cores having an intermetallic compound-based superconducting coating, and in which the joints between the unit cores do not impair superconductivity at the welding point. The goal is to provide the following.
本発明の上記目的は、超導電層を形成すべき金属間化合
物の高融点成分からなる層を有するコーア素材に超導電
層１を拡散によつて形成することによつて単位コーアと
し、次にこの単位コーアを溶接して複数の単位コーアか
らなる超導電ケーブルコーアを製造する方法であつて、
超導電層を形成する前に、各コーア素材の端に障壁層を
設け、超導電層を形成することによつて単位コーアとし
、次にこの障壁層を除いた後に、個々の単位コーアをそ
の周囲にそつて相互に溶接し、かつ溶接された接合部と
障壁層を除いた単位コーアの接合端部とに、金属間化合
物の低融点成分を存在させて熱処理することによつて、
超導電層を形成する金属間化合物基の超導電被覆を有す
る複数の単位コーアからなるケーブルコーアの製造方法
を提供することによつて達成される。The above object of the present invention is to form a unit core by forming a superconducting layer 1 by diffusion on a core material having a layer made of a high melting point component of an intermetallic compound to form a superconducting layer, and then A method for manufacturing a superconducting cable core consisting of a plurality of unit cores by welding the unit cores, the method comprising:
Before forming the superconducting layer, a barrier layer is provided at the end of each core material to form a unit core by forming the superconducting layer, and then after removing this barrier layer, the individual unit cores are By welding each other along the periphery and heat treating the welded joint and the joint end of the unit core excluding the barrier layer in the presence of a low melting point component of the intermetallic compound,
This is accomplished by providing a method for manufacturing a cable core consisting of a plurality of unit cores having an intermetallic compound-based superconducting coating forming a superconducting layer.
単位コーアをその周囲にそつて相互に溶接する前の段階
において、単位コーアの内面に超導電層を形成するとき
に金属間化合物の高融点成分からなるシース内に金属間
化合物の成分からなる粉末混合物を充填してなる挿入体
を２つの単位コーアの端面の間に挿入することが適当で
ある。Before the unit cores are welded to each other along their periphery, a powder made of an intermetallic compound component is placed inside a sheath made of a high melting point component of an intermetallic compound when forming a superconducting layer on the inner surface of the unit core. It is suitable to insert the insert filled with the mixture between the end faces of the two unit cores.
超導電層を形成するには、金属間化合物の低融点成分を
含む合金の溶融体を存在させて熱処理することが好まし
い。In order to form a superconducting layer, it is preferable to perform heat treatment in the presence of a melt of an alloy containing a low melting point component of an intermetallic compound.
本発明の金属間化合物基の超導電被覆を有する複数の単
位コーアからなるケーブルコーアの製造方法は、個々の
単位コーアを相互に溶接した場所における強度と超導電
性とを改良し、さらに異なる型の単位コーアを相互に溶
接し組み立てたケーブルの信頼性を改良する方法であつ
て、何処ででも適用することができる。The method of manufacturing a cable core consisting of a plurality of unit cores having an intermetallic compound-based superconducting coating of the present invention improves the strength and superconductivity at the locations where the individual unit cores are welded together, and further improves the A method for improving the reliability of assembled cables by welding unit cores together, and can be applied anywhere.
本発明の他の目的および利点は、添付図面を参照しなが
ら次の好ましい実施態様の詳細な説明を読めばさらに明
らかになるで゛あろう。Other objects and advantages of the invention will become more apparent from the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings.
本発明の方法によつて、内部および外面の超導電層１（
第１図）を形成するには、コーア素材２，３が安定化銅
層４と、金属間化合物の高融点成分からなる層５とを有
し、このコーア素材に液体拡散させる。By the method of the invention, the inner and outer superconducting layer 1 (
1), the core material 2, 3 has a stabilized copper layer 4 and a layer 5 of a high melting point component of an intermetallic compound, and a liquid is diffused into this core material.
この実施態様によれば、拡散室６内でコーア素材２，３
に超導電層１を形成する。According to this embodiment, the core materials 2 and 3 are
A superconducting layer 1 is formed thereon.
コーア素材２，３の安定化銅層４には、予じめ隔膜７，
８を設けて金属間化合物の低融点成分を含む溶融金属合
金９が安定化銅層４に影響を与えないようにする。超導
電層１を形成する前に、コーア素材２，３の端に障壁層
１０を設けることは気密のスパツタ室内で行なう。The stabilizing copper layer 4 of the core materials 2 and 3 has a diaphragm 7,
8 is provided to prevent the molten metal alloy 9 containing the low melting point component of the intermetallic compound from affecting the stabilized copper layer 4 . Before forming the superconducting layer 1, a barrier layer 10 is provided at the ends of the core materials 2, 3 in an airtight sputtering chamber.
障壁層１０は、超導電層が形成されるときに金属間化合
物の高融点成分からなる層５に拡散することを防ぐ。拡
散室６から単位コーアを取り出した後に、障壁層１０を
除く。単位コーアをその周囲にそつて相互に接合するに
は電子ビーム溶接で行なう。The barrier layer 10 prevents diffusion into the layer 5 of the high melting point component of the intermetallic compound when the superconducting layer is formed. After taking out the unit core from the diffusion chamber 6, the barrier layer 10 is removed. Electron beam welding is used to join the unit cores together along their periphery.
この接合には、金属間化合物の高融点成分からなる層５
に銅層４を溶接する。障壁層を除いた単位コーアの接合
すべき部分と溶接された接合部とに超導電層を形成する
には、金属間化合物の低融点成分を含む溶融金属合金９
を使用する。超導電層１（第２図）を形成するとき、単
位コーアの端面１１の間で単位コーアをその周囲にそつ
て溶接する前に、単位コーアに環状溝１２を設け、これ
に金属間化合物の成分混合物からなる挿入体１３を挿入
する。This bonding requires a layer 5 made of a high melting point component of an intermetallic compound.
Copper layer 4 is welded to. In order to form a superconducting layer between the part of the unit core to be joined excluding the barrier layer and the welded joint, a molten metal alloy 9 containing a low melting point component of an intermetallic compound is used.
use. When forming the superconducting layer 1 (FIG. 2), before welding the unit core along its periphery between the end faces 11 of the unit core, an annular groove 12 is provided in the unit core, and an annular groove 12 is formed in the unit core, and an annular groove 12 is formed in the unit core. Insert the insert 13 consisting of the component mixture.
この挿入体１３は予じめ金属間化合物の高融点成分から
なるシース１４によつて封じておき、これによつて予じ
め真空にすることなく、単位コーアを相互に接合して、
単位コーアおよび接合部においてともに均一な組織の超
導電層を形成することができる。この実施態様によれば
、まず冷間溶接によつて単位コーアをその周面にそつて
接合して、融着領域１５（第３図）を形成し、ここでは
単位コーアの金属間化合物の高融点成分と挿入体１３と
が相互に融着する。This insert 13 is sealed in advance with a sheath 14 made of a high melting point component of an intermetallic compound, and the unit cores are thereby joined to each other without creating a vacuum in advance.
A superconducting layer with a uniform structure can be formed in both the unit core and the junction. According to this embodiment, the unit cores are first joined along their circumferential surfaces by cold welding to form the fused region 15 (FIG. 3), where the unit cores have a high intermetallic compound content. The melting point component and the insert 13 are fused together.
接合部の補強は単位コーアの周囲の全縁１６にわたつて
電子ビーム溶接することによつて行なう。The joint is reinforced by electron beam welding over the entire peripheral edge 16 of the unit core.
誘導コイル１７を溶接すべき領域に設けて加熱し、挿入
体１３を組織を超導電体の組織に変態させる。超導電層
１を内部に配置した単位コーア間で溶接された接合部の
超導電性を適当にするために、挿入体１３の金属間化合
物の低融点成分の量は挿入体１３の超導電体の化学量論
的組成に必要な量より多くする。An induction coil 17 is placed in the area to be welded and heated to transform the tissue of the insert 13 into that of a superconductor. In order to make the superconductivity of the welded joint between the unit cores in which the superconducting layer 1 is arranged appropriate, the amount of the low melting point component of the intermetallic compound of the insert 13 is adjusted to the level of the superconductor of the insert 13. the amount required for the stoichiometric composition.
これは、低融点成分の一部が融着領域１５に拡散して、
挿入体１３の超導電体を超導電層１に融着させるためで
ある。本発明の金属間化合物基の超導電被覆を有する複
数の単位コーアからなるケーブルコーアの製造方法によ
つて、真空中で行なうことなしに単位コーアを相互に溶
接して組み立てることができ、さらに溶接された接合部
における強度と超導電性とを単位コーアにおけると同様
にすることができ、最後に異なる型の単位ケーブルコー
アを相互に溶接して組み立てることをどこでも行なうこ
とができ、かつケーブルの動作信頼性を改良することが
できる。This is because a part of the low melting point component diffuses into the fused region 15,
This is to fuse the superconductor of the insert 13 to the superconductor layer 1. By the method of manufacturing a cable core consisting of a plurality of unit cores having an intermetallic compound-based superconducting coating of the present invention, the unit cores can be assembled by welding each other without performing the welding in a vacuum. The strength and superconductivity at the bonded joint can be similar to that in the unit core, and finally unit cable cores of different types can be welded together and assembled anywhere, and the operation of the cable can be Reliability can be improved.
本発明をさらに詳細に説明するために、金属間化合物の
成分を特定し、かつ製造条件を特定して、本発明の方法
を実施した実施例を次に記載する。In order to explain the present invention in more detail, examples will be described below in which the method of the present invention was carried out by specifying the components of the intermetallic compound and specifying the manufacturing conditions.
実施例 １
ケーブルコーア素材２，３（第１図）は、金属間化合物
（Ｎｂ３Ｓｎ）の高融点成分であるニオブ（Ｎｂ）から
なる層５および銅（Ｃｕ）からなる安定化層４を有した
。Example 1 Cable core materials 2 and 3 (Fig. 1) had a layer 5 made of niobium (Nb), which is a high melting point component of an intermetallic compound (Nb3Sn), and a stabilizing layer 4 made of copper (Cu). .
このコーア素材に、タンタル（Ｔａ）からなる障壁層１
０を設け、次に拡散室６内ですず青銅からなる溶融合属
合金を存在させて熱処理してＮｂ３Ｓｎからなる超導電
層１を形成した。熱処理は真空度１０−４〜１０−５Ｔ
０ｒｒ、温度６５０〜８００℃で２０〜５０時間行なつ
た。内部超導電層１を有する２つの単位コーア間の溶接
すべき接合部に、溶接領域と挿入体１３とを温度６５０
〜８００℃で１５〜５０時間誘電加熱して超導電層を形
成した。A barrier layer 1 made of tantalum (Ta) is added to this core material.
0 was provided, and then heat treatment was performed in the presence of a molten metal alloy made of tin bronze in the diffusion chamber 6 to form a superconducting layer 1 made of Nb3Sn. Heat treatment at vacuum level 10-4 to 10-5T
The reaction was carried out at a temperature of 650 to 800° C. for 20 to 50 hours. At the joint to be welded between two unit cores with an inner superconducting layer 1, the welding area and the insert 13 are heated to a temperature of 650°C.
A superconducting layer was formed by dielectric heating at ~800°C for 15-50 hours.
粉末混合物の金属間化合物成分はニオブ（Ｎｂ）とすず
（Ｓｎ）とであつた。超導電層を形成するときの上記温
度範囲は、溶融金属合金中に銅（Ｃｕ）が存在し、かつ
挿入体１３を形成する。成分混合物に銅を粉末状で加え
ることによつて決定された。挿入体１３の封入シース１
４はニオブ（Ｎｂ）であつた。実施例 ２
銅（Ｃｕ）からなる安定化層４および金属間化合物Ｖ３
Ｇａの高融点成分であるバナジウム（Ｖ）からなる層５
を有するコーア素材２，３（第１図）に、タンタル（Ｔ
ａ）からなる障壁層を設け、次に拡散室６内でガリウム
（Ｇａ）を含む溶融金属合金９を存在させて熱処理して
Ｖ３Ｇａからなる超導電層１を形成した。The intermetallic components of the powder mixture were niobium (Nb) and tin (Sn). The above temperature range when forming the superconducting layer is such that copper (Cu) is present in the molten metal alloy and the insert 13 is formed. Determined by adding copper in powder form to the component mixture. Encapsulating sheath 1 of insert 13
4 was niobium (Nb). Example 2 Stabilizing layer 4 made of copper (Cu) and intermetallic compound V3
Layer 5 made of vanadium (V), which is a high melting point component of Ga
Tantalum (T
A barrier layer made of a) was provided, and then heat treatment was performed in a diffusion chamber 6 in the presence of a molten metal alloy 9 containing gallium (Ga) to form a superconducting layer 1 made of V3Ga.
熱処理は不活性媒体中で、温度６００〜９００℃で５〜
２００時間行なつた。内部超導電層１を有する２つの単
位コーアは、その溶接領域と挿入体１３とを、温度６０
０〜９００℃で５〜２００時間誘導加熱して、単位コー
ア間の接合部に超導電層を形成させた。このとき、挿入
体にはバナジウム（Ｖ）とガリウム（Ｇａ）との粉末混
合物を入れ、挿入体１３のシース１４はバナジウム（Ｖ
）であつた。Heat treatment is carried out in an inert medium at a temperature of 600 to 900 °C for 5 to
I did it for 200 hours. The two unit cores with the inner superconducting layer 1 have their welded area and insert 13 heated to a temperature of 60°C.
Induction heating was performed at 0 to 900° C. for 5 to 200 hours to form a superconducting layer at the joint between the unit cores. At this time, the insert body is filled with a powder mixture of vanadium (V) and gallium (Ga), and the sheath 14 of the insert body 13 is filled with vanadium (V).
).
第１図は本発明の実施において、拡散室内におかれた、
超導電被覆を有する共軸単位コーアの断面図であり、第
２図は、本発明の実施において、単位コーアを相互に溶
接する前の段階の、内部超導電被覆を有する接合部の説
明図であり、第３図は、本発明の実施において、単位コ
ーアを相互に溶接した後の段階の、内部超導電被覆を有
する接合部の説明図である。
１・・・超導電層、２，３・・・コーア素材、４・・・
安定化銅層、５・・・高融点成分層、６・・・拡散室、
７，８・・・隔膜、９・・・溶融金属合金、１０・・・
障壁層、１１・・・単位コーアの端面、１２・・・環状
溝、１３・・・挿入体、１４・・・シース、１５・・・
融着領域、１６・・・周囲の縁、１７・・・誘導コイル
。FIG. 1 shows a device placed in a diffusion chamber in the practice of the present invention.
FIG. 2 is a cross-sectional view of a coaxial unit core having a superconducting coating, and FIG. FIG. 3 is an explanatory diagram of a joint having an internal superconducting coating at a stage after unit cores are welded together in the practice of the present invention. 1... Superconducting layer, 2, 3... Core material, 4...
Stabilized copper layer, 5... High melting point component layer, 6... Diffusion chamber,
7, 8... Diaphragm, 9... Molten metal alloy, 10...
Barrier layer, 11... End face of unit core, 12... Annular groove, 13... Insert, 14... Sheath, 15...
Fusion region, 16... Surrounding edge, 17... Induction coil.
Claims (1)
らなる層５を有する各コーア素材２、３の端に障壁層１
０を設け、このコーア素材２、３に超導電層１を拡散に
よつて形成することによつて単位コーアとし、次にこの
単位コーアから障壁層１０を除いた後に、個々の単位コ
ーアをその周囲にそつて相互に溶接し、かつ溶接された
接合部と障壁層１０を除いた単位コーアの接合端部とに
金属間化合物の低融点成分を存在させて熱処理すること
によつて超導電層１を形成する、金属間化合物基の超導
電被覆を有する複数の単位コーアからなるケーブルコー
アの製造方法。 ２ 単位コーアをその周囲にそつて相互に溶接する前の
段階において、単位コーアの内面に超導電層１を形成す
るときに、金属間化合物の高融点成分からなるシース１
４内に金属間化合物の成分からなる粉末混合物を充填し
てなる挿入体１３を２つの単位コーアの端面１１の間に
挿入する、特許請求の範囲第１項記載の金属間化合物基
の超導電被覆を有する複数の単位コーアからなるケーブ
ルコーアの製造方法。 ３ 金属間化合物の低融点成分を含む合金の溶融体を存
在させて熱処理することによつて超導電層１を形成する
、特許請求の範囲第１項記載の金属間化合物基の超導電
被覆を有する複数の単位コーアからなるケーブルコーア
の製造方法。[Claims] 1. A barrier layer 1 at the end of each core material 2, 3 having a layer 5 made of a high melting point component of an intermetallic compound to form a superconducting layer.
0 is provided, and a superconducting layer 1 is formed on the core materials 2 and 3 by diffusion to form a unit core. Next, after removing the barrier layer 10 from this unit core, each unit core is A superconducting layer is formed by welding each other along the periphery and heat-treating the welded joint and the joint end of the unit core excluding the barrier layer 10 in the presence of a low melting point component of an intermetallic compound. 1. A method for manufacturing a cable core comprising a plurality of unit cores having an intermetallic compound-based superconducting coating. 2. When forming the superconducting layer 1 on the inner surface of the unit core at a stage before welding the unit cores together along the periphery thereof, the sheath 1 made of a high melting point component of an intermetallic compound is
The intermetallic compound-based superconductor according to claim 1, wherein an insert 13 made of a powder mixture filled with an intermetallic compound component is inserted between the end surfaces 11 of two unit cores. A method for manufacturing a cable core consisting of a plurality of unit cores each having a coating. 3. A superconducting coating based on an intermetallic compound according to claim 1, wherein the superconducting layer 1 is formed by heat treatment in the presence of a melt of an alloy containing a low melting point component of an intermetallic compound. A method for manufacturing a cable core comprising a plurality of unit cores.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU000002436394 | 1977-01-03 | ||
| SU772436394A SU714512A1 (en) | 1977-01-03 | 1977-01-03 | Method of manufacturing multi-section superconducting core |
| SU772491719A SU714513A1 (en) | 1977-06-02 | 1977-06-02 | Method of manufacturing multi-section superconducting core |
| SU000002491719 | 1977-06-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53104877A JPS53104877A (en) | 1978-09-12 |
| JPS5952492B2 true JPS5952492B2 (en) | 1984-12-20 |
Family
ID=26665607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53000102A Expired JPS5952492B2 (en) | 1977-01-03 | 1978-01-04 | Method for manufacturing a cable core consisting of a plurality of unit cores having an intermetallic compound-based superconducting coating |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5952492B2 (en) |
| CA (1) | CA1089203A (en) |
| DD (1) | DD134580A1 (en) |
| DE (1) | DE2800196C3 (en) |
| FR (1) | FR2376522A1 (en) |
| GB (1) | GB1574671A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU883981A1 (en) * | 1978-12-04 | 1981-11-23 | Государственный Научно-Исследовательский Энергетический Институт Им. Г.М.Кржижановского | Method of manufacturing multisection superconducting core on the base of intermetallic compound with internal arrangement of superconducting layer |
| DE3121213C2 (en) * | 1981-05-27 | 1983-06-01 | Gosudarstvennyj naučno-issledovatel'skij energetičeskij institut imeni G.M. Kržižanovskogo, Moskva | Process for the production of cores composed of individual lengths with a superconducting layer |
| FR2507375A1 (en) * | 1981-06-04 | 1982-12-10 | G Energet In | Stabilised superconductive tube for waveguide - has perforated zone at end covered with conductive layer by selective coating and etching |
| CN113005406B (en) * | 2021-02-23 | 2023-02-24 | 中国科学院近代物理研究所 | Preparation method of niobium-tin film |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3523361A (en) * | 1968-06-04 | 1970-08-11 | Varian Associates | Method of splicing superconductive wires |
| US3848075A (en) * | 1971-12-27 | 1974-11-12 | Varian Associates | Method for splicing compound superconductors |
| FR2192744A5 (en) * | 1972-07-13 | 1974-02-08 | Thomson Brandt | |
| US3895432A (en) * | 1973-07-04 | 1975-07-22 | Siemens Ag | Method of electrically joining together two bimetal tubular superconductors |
-
1978
- 1978-01-02 DD DD78203068A patent/DD134580A1/en unknown
- 1978-01-03 FR FR7800057A patent/FR2376522A1/en active Granted
- 1978-01-03 GB GB72/78A patent/GB1574671A/en not_active Expired
- 1978-01-03 DE DE2800196A patent/DE2800196C3/en not_active Expired
- 1978-01-04 JP JP53000102A patent/JPS5952492B2/en not_active Expired
- 1978-01-06 CA CA294,511A patent/CA1089203A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1089203A (en) | 1980-11-11 |
| FR2376522A1 (en) | 1978-07-28 |
| GB1574671A (en) | 1980-09-10 |
| JPS53104877A (en) | 1978-09-12 |
| DE2800196A1 (en) | 1978-07-13 |
| DE2800196C3 (en) | 1981-09-24 |
| DE2800196B2 (en) | 1980-11-13 |
| FR2376522B1 (en) | 1981-01-23 |
| DD134580A1 (en) | 1979-03-07 |
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