JPS63216212A - Nb3sn-based superconductive wire and production of it - Google Patents
Nb3sn-based superconductive wire and production of itInfo
- Publication number
- JPS63216212A JPS63216212A JP62048218A JP4821887A JPS63216212A JP S63216212 A JPS63216212 A JP S63216212A JP 62048218 A JP62048218 A JP 62048218A JP 4821887 A JP4821887 A JP 4821887A JP S63216212 A JPS63216212 A JP S63216212A
- Authority
- JP
- Japan
- Prior art keywords
- based metal
- metal material
- wire
- superconducting wire
- alloy
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000007769 metal material Substances 0.000 claims abstract description 24
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 229910019192 Sn—Cr Inorganic materials 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 13
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- -1 Z At least one of n Inorganic materials 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 7
- 229910052758 niobium Inorganic materials 0.000 abstract description 7
- 229910052718 tin Inorganic materials 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 238000010622 cold drawing Methods 0.000 abstract description 2
- 229910000599 Cr alloy Inorganic materials 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 11
- 229910000906 Bronze Inorganic materials 0.000 description 9
- 239000010974 bronze Substances 0.000 description 9
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000005491 wire drawing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910002058 ternary alloy Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- Wire Processing (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は高磁界を発生する超電導コイルの巻線材として
用いられるＮｂ２Ｓｎ系化合物超電導線の製造方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a Nb2Sn-based compound superconducting wire used as a winding material for a superconducting coil that generates a high magnetic field.
〔従来の技術〕 。[Conventional technology].
最近、核融合、高エネルギー物理、核磁気共鳴装置、物
性研究用などの分野において、高磁界を発生でき、かつ
、交流損失の少ない超電導コイルの製作が進められてい
る。高磁界超電導コイルの巻線材として用いられる代表
的な化合物超電導線はＮｂ２Ｓｎ系化合物超電導線であ
る。Ｎｂ、 Ｓｎ線は。Recently, in fields such as nuclear fusion, high energy physics, nuclear magnetic resonance devices, and materials research, progress has been made in producing superconducting coils that can generate high magnetic fields and have low AC losses. A typical compound superconducting wire used as a winding material for a high-field superconducting coil is an Nb2Sn-based compound superconducting wire. Nb and Sn lines.
特許公報（％公昭５４−２４１０９）に示されるように
。As shown in the patent publication (%Koshō 54-24109).
各構成成分であるＮｂ、 Ｓｎ、 Ｃｕなどを一体とし
て伸線し、最終寸法で熱処理することによって内部的に
Ｎｂ２Ｓｎを生成させる。いわゆる複合加工法で製造さ
れている。Nb2Sn is internally generated by drawing the constituent components Nb, Sn, Cu, etc. as one body and heat-treating the wire to the final size. It is manufactured using a so-called composite processing method.
第３図及び第４図に、従来の代表的な化合物超電導線で
あるＮｂ２Ｓｎ線の熱処理前と熱処理後の横断面を示す
。図において、（１）はＣｕ層、（２）はＳｎ層。FIGS. 3 and 4 show cross sections of an Nb2Sn wire, which is a typical conventional compound superconducting wire, before and after heat treatment. In the figure, (1) is a Cu layer, and (2) is a Sn layer.
（３）はＮｂ層、（４）は超電導線素としてのＮｂ、
Ｓｎ層、（５）はブロンズ層を示している。第３図にお
いて、中央に配置されたＳｎが、熱処理によってＣｕ母
相中に拡散し、Ｎｂの表面にＮｂ２Ｓｎを生成させ、Ｃ
ｕ母相をブロンズに変え、第４図に示す構造の線になる
。(3) is an Nb layer, (4) is Nb as a superconducting wire element,
The Sn layer and (5) indicate the bronze layer. In Fig. 3, Sn placed in the center is diffused into the Cu matrix by heat treatment, producing Nb2Sn on the surface of Nb, and C
The u matrix is changed to bronze, resulting in the structural lines shown in Figure 4.
超電導コイルには、磁界の変動に対しても安定な運転が
可能で、高磁界が発生できることが強く要求されている
。そのためには２％に臨界電流密度が十分高いこと、超
電導線の機械的強度が大きいこと、交流損失が少ないこ
とが必要である。Superconducting coils are strongly required to be able to operate stably even under magnetic field fluctuations and to generate high magnetic fields. For this purpose, it is necessary that the critical current density be sufficiently high at 2%, that the mechanical strength of the superconducting wire be large, and that the AC loss be small.
しかしながら、前述の複合加工法で製作されるＮｂ２Ｓ
ｎ系化合物超電導線では、 Ｎｂ２Ｓｎ生成熱処理後の
ブロンズ母相の機械強度が低いため応力による臨界電流
密度の低下が激しく２また。同じくブロンズ母相の電気
抵抗が低いためフィラメントどうしの電気的結合が起り
、交流損失が大きくなるという欠点があった。However, Nb2S produced by the above-mentioned composite processing method
In n-based compound superconducting wires, the mechanical strength of the bronze matrix after Nb2Sn formation heat treatment is low, so the critical current density decreases sharply due to stress. Similarly, since the electrical resistance of the bronze matrix is low, electrical coupling between the filaments occurs, resulting in a large alternating current loss.
本発明は、このような問題点を解決するためになされた
もので、臨界電流密度が高く２機械的特性に優れ、交流
損失の少ない化合物超電導線を得ることを目的とする。The present invention was made to solve these problems, and aims to obtain a compound superconducting wire that has a high critical current density, excellent mechanical properties, and low AC loss.
本発明によるＮｂ２Ｓｎ系化合物超電導線の製造方法は
、Ｎｂ基金属材とＳｎ基金属材の周辺にＣｕ基金属材を
配置した状態で一体として断面縮小加工して熱処理する
ことによって超電導線を製造する方法において、上記Ｃ
ｕ基金属材あるいはＳｎ基金属のうち少なくとも一方を
０．１〜２０ｗｔ％のＣｒを含有する金属材とすること
である。The method for manufacturing a Nb2Sn-based compound superconducting wire according to the present invention is to manufacture a superconducting wire by integrally reducing the cross section of a Nb-based metal material and a Sn-based metal material with a Cu-based metal material disposed around them and subjecting them to heat treatment. In the method, the above C
At least one of the U-based metal material and the Sn-based metal material is a metal material containing 0.1 to 20 wt% Cr.
また２本発明によるＮｂ２Ｓｎ系化合物超電導線は。Furthermore, the Nb2Sn-based compound superconducting wire according to the present invention is as follows.
Ｃｕ −Ｓ ｎ −Ｃｒ合金内に複数のＮｂ、 Ｓｎ系
化合物超電導線素を配置するものでちる。A plurality of Nb and Sn-based compound superconducting wire elements are arranged within a Cu-Sn-Cr alloy.
本発明においては、Ｃｕ基金属材あるいはＳｎ基金属材
にＣｒｆ添加することによって、 Ｎｂ２Ｓｎ生成熱処
理後のブロンズ母相とＮｂ、 Ｓｎ層にＣｒが含有され
るので、臨界電流密度が改善され９機械的強度が向上し
、かつ、交流損失も少ないＮｂ２Ｓｎ系化合物超電導線
を得ることができる。In the present invention, by adding Crf to the Cu-based metal material or the Sn-based metal material, Cr is contained in the bronze matrix and the Nb and Sn layers after the Nb2Sn formation heat treatment, so the critical current density is improved and It is possible to obtain an Nb2Sn-based compound superconducting wire with improved physical strength and low AC loss.
以下２本発明の実施例を図に示し詳細に説明する。第１
図、第２図は本発明の実施例１を示し。Two embodiments of the present invention will be illustrated in the drawings and explained in detail below. 1st
FIG. 2 shows a first embodiment of the present invention.
この実施例は、まず、母相がＣｕ−０，８ｗｔｑｂＣｒ
合金（６）で、この母相に９０本のＮｂ芯線が埋設され
、中央に中空部を持つ複合多芯チューブを用意した。In this example, first, the matrix is Cu-0,8wtqbCr
A composite multicore tube was prepared using alloy (6) in which 90 Nb core wires were embedded in the matrix and had a hollow part in the center.
次に、 Ｓｎ棒を用意し、これを複合多芯中空部に挿入
し、第１図にその断面を示すような複合棒を作成した。Next, a Sn rod was prepared and inserted into the composite multicore hollow part to create a composite rod whose cross section is shown in FIG.
この複合棒をすべて冷間引抜加工で直径０．２■まで伸
線した。伸線加工は中間焼鈍の必要もなく安定になされ
た。また、Ｎｂフィラメントの径は約９ａｍであった。All of these composite rods were drawn to a diameter of 0.2 cm by cold drawing. The wire drawing process was stable without the need for intermediate annealing. Further, the diameter of the Nb filament was about 9 am.
次にこの線ヲ７５０℃で５０時間熱処理することによっ
て、Ｎｂフィラメントの表面にＮｂ２Ｓｎ化合物を生成
させた。第２図に熱処理後の線横断面を示す。Next, this wire was heat-treated at 750° C. for 50 hours to form a Nb2Sn compound on the surface of the Nb filament. FIG. 2 shows a line cross section after heat treatment.
母相はＳｎの拡散によってＣｕ −Ｓｎ −Ｃｒ合金（
７）になっていた。The parent phase forms a Cu-Sn-Cr alloy (
7).
このようにして得られた線について、液体ヘリウム温度
での印加磁界中の臨界電流を測定した。For the lines thus obtained, the critical current in an applied magnetic field at liquid helium temperature was measured.
これによると、臨界電流は、１０Ｔで５０Ａと非常に高
く、従来の母相にＣｕＣｒ合金を使用していない同一構
成、同一寸法の線に比べると約２０チ増加していた。According to this, the critical current was extremely high at 50 A at 10 T, which was an increase of about 20 inches compared to a conventional wire of the same configuration and size that did not use a CuCr alloy for the parent phase.
次に、線に曲げ応力をかけたときの臨界電流を測定し友
。これによると、臨界電流ｔ−１０％低下させる曲げ歪
み量は、従来の線の約０．５％に比べ２本発明の実施例
１による線は約０．８％と高く、応力による臨界電流特
性の低下が小さかった。これは。Next, we measured the critical current when bending stress was applied to the wire. According to this, the amount of bending strain that reduces the critical current t-10% is as high as about 0.8% for the wire according to Example 1 of the present invention, compared to about 0.5% for the conventional wire, and the critical current due to stress The decrease in characteristics was small. this is.
熱処理後のブロンズ母相にＣｒが合金化されているため
に、母相の機械的強度が増加したためである。This is because the mechanical strength of the bronze matrix increased because Cr was alloyed with the bronze matrix after the heat treatment.
因みに、微小硬度計で母相の硬度を測定した結果では、
Ｃｒの添加によって硬度は２０〜３０チ増加していた
。Incidentally, the results of measuring the hardness of the matrix using a microhardness meter show that
The addition of Cr increased the hardness by 20 to 30 inches.
また、磁界の変動に対する安定性を知るために。Also, to know the stability against magnetic field fluctuations.
外部磁界をＯＴから６Ｔまで１秒で変化させた時の損失
時定数を測定したところ、従来より約り０％小さい値と
なり２本実施例の線が、変動磁界に対して特に安定であ
ることがわかった。これは、磁界の変動があった場合、
従来の線では、第４図に示すように、超電導フィラメン
ト間の母相は比較的電気抵抗の低いブロンズであったが
１本実施例の線では、ブロンズにＣｒが固溶することに
よって電気抵抗が高くなっているので、結合は起こりに
くくなったと考えられる。このように本発′明の実施例
１による超電導線は磁界の変動の大きい高磁界超電導機
器用の超電導線としても優れていることがわかった。When the loss time constant was measured when the external magnetic field was changed from OT to 6T in 1 second, the value was approximately 0% smaller than that of the conventional method.2 The line of this example is particularly stable against changing magnetic fields. I understand. This means that if there is a change in the magnetic field,
In the conventional wire, as shown in Fig. 4, the matrix between the superconducting filaments was bronze, which has a relatively low electrical resistance.However, in the wire of this embodiment, the electrical resistance is low due to solid solution of Cr in the bronze. It is thought that bonding is less likely to occur because of the higher Thus, it was found that the superconducting wire according to Example 1 of the present invention is also excellent as a superconducting wire for use in high-field superconducting equipment in which magnetic field fluctuations are large.
次に２本発明の実施例２について説明する。この実施例
は、実施例１と同様の構成で、母相はＣｕ層・
とし２Ｓｎ棒の代わりに５ｎ−５ｗｔ％合金棒を用いた
。Next, a second embodiment of the present invention will be described. This example had the same structure as Example 1, except that the parent phase was a Cu layer and a 5n-5wt% alloy rod was used instead of the 2Sn rod.
伸線加工は容易に行うことができ、最終寸法で熱処理を
行なって、 Ｎｂ２Ｓｎ超電導線を得た。この場合にも
、実施例１と同様に、臨界電流特性２機械特性の向上、
交流損失の低下の効果があった。これは実施例１と同様
に、 Ｎｂ２Ｓｎ生成熱処理後の母相はＣｕ−ＳｎＣｒ
の三元合金となっていたためである。The wire drawing process was easy to perform, and a Nb2Sn superconducting wire was obtained by heat treatment at the final size. In this case as well, as in Example 1, critical current characteristics 2 improve mechanical properties,
This had the effect of reducing AC loss. This is similar to Example 1, and the parent phase after the Nb2Sn generation heat treatment is Cu-SnCr.
This is because it was a ternary alloy of
さらに２本発明の実施例３について説明する。Furthermore, Example 3 of the present invention will be described.
この実施例は、実施例１と同様の構成で、母相が亭
Ｃｕ−３ｗｔ％合金、 Ｓｎ棒の代わシにＳｎ −１０
ｗｔ ％ Ｉ ｎ合金棒を用いた。伸線加工は容易に行
なうことができ、最終寸法で熱処理を行なって、 Ｎｂ
２Ｓｎ超電導線を得た。この場合にも実施例１および２
と同様に臨界電流特性２機械特性の向上、交流損失の低
下の効果があったが、前記実施例に比べて２％に臨界電
流特性の向上が著しく、実施例１よりも約２０チ改善さ
れた。This example has the same configuration as Example 1, with the parent phase being a Cu-3wt% alloy and Sn-10 instead of Sn rods.
A wt % In alloy rod was used. Wire drawing can be easily carried out, and heat treatment is performed at the final size to form Nb
A 2Sn superconducting wire was obtained. In this case also Examples 1 and 2
Similarly, critical current characteristics 2 had the effect of improving mechanical characteristics and reducing AC loss, but the critical current characteristics were significantly improved by 2% compared to the previous example, and were improved by about 20 degrees compared to Example 1. Ta.
なお、 Ｃｕ基金属層、 Ｓｎ基金属層に添加するＣｒ
の量は、０．１％からその効果が見られ、２０チ以上に
なると加工も困難になり、臨界電流特性も低下する。Note that Cr added to the Cu-based metal layer and the Sn-based metal layer
The effect can be seen from the amount of 0.1%, and when the amount exceeds 20 inches, processing becomes difficult and the critical current characteristics also deteriorate.
例えば、 Ｃｒ ｆ ０．１ｗｔ ％から０．３ ｗｔ
％程度まで添加すると、Ｏｒ添加量の増加にともなっ
て、主に交流損失の低下が著しくなる。０．３〜１（ｈ
ｖｔ％程度では。For example, Cr f 0.1wt% to 0.3wt
%, the AC loss mainly decreases significantly as the amount of Or added increases. 0.3~1(h
At about vt%.
交流損失の低下だけではなく、上記実施例３において述
べ九ように臨界電流特性も改善される。また、 １０
ｖｔ９６以上になると、交流損失はさらに低下するが、
臨界電流特性は劣化してくる。Not only the AC loss is reduced, but also the critical current characteristics are improved as described in the third embodiment. Also, 10
At vt96 or higher, the AC loss further decreases, but
Critical current characteristics deteriorate.
臨界電流特性を向上させる添加元素としては。As an additive element that improves critical current characteristics.
上記実施例３で述ベアｔＩｎのほかに、従来法において
特性改善に有効であることが知られているＴｉ。In addition to the bare tIn mentioned in Example 3 above, Ti is known to be effective in improving characteristics in conventional methods.
Ｇａ、 Ｂｅ、 ）Ｊ、 Ｍｎ、 Ｚｎ、 Ｚｒ、 Ｆ
ｅ、 Ｎｉなどは本発明の場合にも同様の効果を示した
。また、その添加手段としては、 Ｓｎ棒のほかにＣｕ
母相でもよく、添加量としては、０．１ｗｔ％から効果
を示し、２０ｗｔ％以上になると臨界電流特性と伸線加
工性の低下を招いたので、０．１〜２０ｗ１％が適当で
ある。Ga, Be, )J, Mn, Zn, Zr, F
E, Ni, etc. showed similar effects in the case of the present invention. In addition, as addition means, in addition to Sn rod, Cu
The parent phase may also be used, and the addition amount is effective from 0.1 wt%, but if it exceeds 20 wt%, the critical current characteristics and wire drawability deteriorate, so 0.1 to 20 w1% is appropriate.
以上説明したように、この発明によれば、従来よりも、
さらに臨界電流特性９機械特性が優れ。As explained above, according to the present invention, compared to the conventional
Furthermore, critical current characteristics9 mechanical properties are excellent.
交流損失の少ない超電導線が得られるようになったので
、高磁界超電導パルスコイルが可能になシ。As superconducting wires with low AC loss have become available, high-field superconducting pulse coils are now possible.
核融合、各種電力用機器、高エネルギー物理研究の推進
に役立つ。Useful for promoting nuclear fusion, various power equipment, and high energy physics research.
第１図及び第２図は２本発明の実施例１によるＮｂ２Ｓ
ｎ線の熱処理前と熱処理後の横断面を示す。
第３図及び第４図は、従来のＮｂ２Ｓｎ超電導線の熱処
理前と熱処理後の横断面図である。
図において、（１）はＣｕ層、（４）は超電導線素とじ
て合金層である。
なお９図中同一符号は同一ま九は相当部分を示す。Figures 1 and 2 show two Nb2S according to Example 1 of the present invention.
Cross sections are shown before and after N-line heat treatment. 3 and 4 are cross-sectional views of a conventional Nb2Sn superconducting wire before and after heat treatment. In the figure, (1) is a Cu layer, and (4) is an alloy layer that is also a superconducting wire element. Note that the same reference numerals in Figure 9 indicate corresponding parts.
Claims (3)
材を配置した状態で一体として断面縮小加工して熱処理
することによって超電導線を製造する方法において、上
記Ｃｕ基金属材あるいはＳｎ基金属材のうち少なくとも
一方がＣｒを０．１〜２０ｗｔ％含有する金属材である
ことを特徴とするＮｂ＿２Ｓｎ系化合物超電導線の製造
方法。(1) In a method of manufacturing a superconducting wire by integrally processing the Nb-based metal material and the Sn-based metal material with a Cu-based metal material placed around them and subjecting them to cross-sectional reduction processing and heat treatment, the Cu-based metal material or the Sn-based metal material is A method for producing a Nb_2Sn-based compound superconducting wire, characterized in that at least one of the metal materials is a metal material containing 0.1 to 20 wt% Cr.
とも一方に、Ｉｎ、Ｔｉ、Ｇａ、Ｂｅ、Ａｌ、Ｍｎ、Ｚ
ｎ、Ｚｒ、ＮｉあるいはＦｅのうち少なくと、一種を０
．１〜２０ｗｔ％を含有する金属材であることを特徴と
する特許請求の範囲第１項記載のＮｂ＿２Ｓｎ系化合物
超電導線の製造方法。(2) At least one of Cu-based metal material or Sn-based metal material contains In, Ti, Ga, Be, Al, Mn, Z
At least one of n, Zr, Ni or Fe is 0
．． 2. The method for producing a Nb_2Sn-based compound superconducting wire according to claim 1, wherein the metal material contains 1 to 20 wt%.
化合物超電導線素を配置したことを特徴とするＮｂ＿２
Ｓｎ系化合物超電導線。(3) Nb_2 characterized by having a plurality of Nb_2Sn-based compound superconducting wire elements arranged in a Cu-Sn-Cr alloy
Sn-based compound superconducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62048218A JPS63216212A (en) | 1987-03-03 | 1987-03-03 | Nb3sn-based superconductive wire and production of it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62048218A JPS63216212A (en) | 1987-03-03 | 1987-03-03 | Nb3sn-based superconductive wire and production of it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63216212A true JPS63216212A (en) | 1988-09-08 |
| JPH0570888B2 JPH0570888B2 (en) | 1993-10-06 |
Family
ID=12797272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62048218A Granted JPS63216212A (en) | 1987-03-03 | 1987-03-03 | Nb3sn-based superconductive wire and production of it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63216212A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991002364A1 (en) * | 1989-08-09 | 1991-02-21 | Tokai University | Superconductive wire |
| EP0618627A1 (en) * | 1993-04-02 | 1994-10-05 | Mitsubishi Denki Kabushiki Kaisha | Compound superconducting wire and method for manufacturing the same |
| JP2007165151A (en) * | 2005-12-14 | 2007-06-28 | Hitachi Cable Ltd | CORE WIRE FOR Nb3Sn SUPERCONDUCTIVE WIRE, Nb3Sn SUPERCONDUCTIVE WIRE, AND METHOD OF MANUFACTURING SAME |
| JP2007165152A (en) * | 2005-12-14 | 2007-06-28 | Hitachi Cable Ltd | CORE WIRE FOR Nb3Sn SUPERCONDUCTIVE WIRE, Nb3Sn SUPERCONDUCTIVE WIRE, AND METHOD OF MANUFACTURING SAME |
| JP2015185211A (en) * | 2014-03-20 | 2015-10-22 | 国立研究開発法人物質・材料研究機構 | METHOD OF PRODUCING Nb3Sn SUPERCONDUCTING WIRE ROD |
| WO2021024529A1 (en) * | 2019-08-07 | 2021-02-11 | 国立研究開発法人物質・材料研究機構 | PRECURSOR FOR Nb3Sn SUPERCONDUCTIVE WIRE MATERIAL, PRODUCTION METHOD THEREFOR, AND PRODUCTION METHOD FOR Nb3Sn SUPERCONDUCTIVE WIRE MATERIAL USING SAME |
-
1987
- 1987-03-03 JP JP62048218A patent/JPS63216212A/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991002364A1 (en) * | 1989-08-09 | 1991-02-21 | Tokai University | Superconductive wire |
| US5837941A (en) * | 1989-08-09 | 1998-11-17 | Tokai University | Superconductor wire |
| EP0618627A1 (en) * | 1993-04-02 | 1994-10-05 | Mitsubishi Denki Kabushiki Kaisha | Compound superconducting wire and method for manufacturing the same |
| JP2007165151A (en) * | 2005-12-14 | 2007-06-28 | Hitachi Cable Ltd | CORE WIRE FOR Nb3Sn SUPERCONDUCTIVE WIRE, Nb3Sn SUPERCONDUCTIVE WIRE, AND METHOD OF MANUFACTURING SAME |
| JP2007165152A (en) * | 2005-12-14 | 2007-06-28 | Hitachi Cable Ltd | CORE WIRE FOR Nb3Sn SUPERCONDUCTIVE WIRE, Nb3Sn SUPERCONDUCTIVE WIRE, AND METHOD OF MANUFACTURING SAME |
| JP4687438B2 (en) * | 2005-12-14 | 2011-05-25 | 日立電線株式会社 | Core wire for Nb3Sn superconducting wire, Nb3Sn superconducting wire, and manufacturing method thereof |
| JP4742843B2 (en) * | 2005-12-14 | 2011-08-10 | 日立電線株式会社 | Core wire for Nb3Sn superconducting wire, Nb3Sn superconducting wire, and manufacturing method thereof |
| JP2015185211A (en) * | 2014-03-20 | 2015-10-22 | 国立研究開発法人物質・材料研究機構 | METHOD OF PRODUCING Nb3Sn SUPERCONDUCTING WIRE ROD |
| WO2021024529A1 (en) * | 2019-08-07 | 2021-02-11 | 国立研究開発法人物質・材料研究機構 | PRECURSOR FOR Nb3Sn SUPERCONDUCTIVE WIRE MATERIAL, PRODUCTION METHOD THEREFOR, AND PRODUCTION METHOD FOR Nb3Sn SUPERCONDUCTIVE WIRE MATERIAL USING SAME |
| JPWO2021024529A1 (en) * | 2019-08-07 | 2021-12-16 | 国立研究開発法人物質・材料研究機構 | A precursor for Nb3Sn superconducting wire, a method for manufacturing the precursor, and a method for manufacturing Nb3Sn superconducting wire using the precursor. |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0570888B2 (en) | 1993-10-06 |
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