JPS61224213A - Stabilizing material for superconducting composite body - Google Patents
Stabilizing material for superconducting composite bodyInfo
- Publication number
- JPS61224213A JPS61224213A JP60065508A JP6550885A JPS61224213A JP S61224213 A JPS61224213 A JP S61224213A JP 60065508 A JP60065508 A JP 60065508A JP 6550885 A JP6550885 A JP 6550885A JP S61224213 A JPS61224213 A JP S61224213A
- Authority
- JP
- Japan
- Prior art keywords
- stabilizing material
- alloy
- superconducting
- superconducting composite
- composite body
- 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
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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は複合超電導導体に用いる安定化材に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a stabilizing material used in composite superconducting conductors.
〈従来の技術とその問題点〉
核融合、エネルギー貯蔵などに応用する大型超電導マグ
ネットでは、Ｙグネット保護の観点からインダクタンス
を小さくして高磁界を発生さ−けるため、大容量導体を
用いることが不可欠である。<Conventional technology and its problems> In large superconducting magnets used in nuclear fusion, energy storage, etc., it is necessary to use large-capacity conductors in order to reduce inductance and generate high magnetic fields from the perspective of protecting the Y magnet. It is essential.
また、これらの大型マグネットの超電導安定化の設削は
、導体の一部に常電導転移が起った場合の発熱（Ｇ）よ
り冷却熱量（Ｑ）を大きくし、常電導部が伝播すること
なく超電導状態に復帰するようにするタライオスタチイ
ツクな安定化法によっている、。In addition, in order to stabilize the superconductivity of these large magnets, the amount of cooling heat (Q) is larger than the heat generated (G) when normal conduction transition occurs in a part of the conductor, and the normal conduction part is prevented from propagating. This is achieved through a Taliostatic stabilization method that allows the material to return to the superconducting state without any problems.
上記の発熱（Ｇ）および冷却熱量（Ｑ）は次式により示
される。The above heat generation (G) and cooling heat amount (Q) are expressed by the following equations.
即ち、Ｇ−ρ／Ｓ−Ｉ ・・・・・・（１）ｏ＝ｐ
−ｈ ・・・・・・（２）但し、に通電電流値
ρ：安定化材の抵抗率
Ｓ：安定化材の断面積
ｐ：冷却表面積
ｈ：ｓ体とヘリウム間の熱流束
である。That is, G-ρ/S-I (1) o=p
-h (2) However, current value ρ: resistivity S of the stabilizing material: cross-sectional area p of the stabilizing material: cooling surface area h: heat flux between the s-body and helium.
この式から超電導導体としては、ρを小さくし、ｓ、ｐ
、ｈを大きくすることが必要である。From this equation, as a superconducting conductor, ρ is small, s, p
, h must be increased.
これらのうちｐｌｈは導体寸法、形状により、はぼ決め
られてしまい、またＳを大きくすると、マグネッ１〜が
人（１′１化し、］ス１〜的に問題である。Of these, plh is roughly determined by the conductor size and shape, and if S is made large, the magnet 1~ becomes human (1'1), which is a problem in terms of space.
従っ（、超電導導体の安定化（Ａどじて１．−Ｊ、抵抗
率ρが小ざいことか８四で、通帛は純銅か用いられる。Therefore, the stabilization of the superconducting conductor (A is 1.-J, the resistivity ρ is 84, probably because it is small, and pure copper is used as the conductor.
しかし、安定化（・Ａどし−（’ Ｃｕを用いＩこ場合
は、１ｈに高磁界での安定・１１１か悪い。そしてこの
安定・ｌノｌを十分にするに１．Ｊｌ多量のＣｕか必要
とイｒす、電流密度か減少し、マグネツｌへｊｌ法か増
大覆る。However, in this case, the stability in a high magnetic field for 1 h is 111 or worse.And in order to make this stability sufficient, a large amount of Cu is required for 1 h. If it is necessary, the current density will decrease and the magnetic flux will increase.
これｔＪＣｕの電気抵抗は磁器抵抗効果により、磁界と
共に蔦しく増加り−るため、電気抵抗と共に熱伝導かイ
代下覆るため−（ある。Since the electrical resistance of tJCu increases rapidly with the magnetic field due to the magnetic resistance effect, the heat conduction and the electrical resistance decrease by a certain amount.
要するに、ＣＩＬは磁界の増加に伴４１つ抵抗率の増加
、即ら磁器抵抗効果か大ぎいことか欠点てあり、このこ
とから磁器抵抗効果の小さな高紳用Ａρを安定化材とし
て用いることが望まれている。しかしイｆから、高純度
Ａ＆４゜１機械強度、特（こ耐疲労強電か小ざい欠点か
あり、繰返し電磁力が導体に加えられるパルスマグネツ
１〜Ｃ１，Ｊ、人きイｒ問題となるのＣ゛ある。In short, CIL has the disadvantage that the resistivity increases as the magnetic field increases, that is, the magnetic resistance effect is too large. From this, it is difficult to use high-grade Aρ, which has a small magnetic resistance effect, as a stabilizing material. desired. However, from IF, high purity A & 4゜1 mechanical strength, special (fatigue resistant strong electric current, small defects, pulsed magnets 1~C1,J where repeated electromagnetic force is applied to the conductor, it becomes a problem for human beings) There is.
〈問題点を解決するための手段〉
この発明は一ト記した従来の欠陥に鑑み、これを解消Ｊ
べく検ｉ］の結果得られたものである。<Means for Solving the Problems> In view of the above-mentioned conventional deficiencies, this invention solves them.
This is the result obtained from the following test.
即ち、この発明は紳Ａρ棒をＡｇ、Ｚｒ、Ｓｎのなかか
ら選ばれＩこ１種類の元素を０．０２−・０．２重足％
含有する罰金金で被覆し！こことを特徴とＪる超電贈複
合導体用安定化ｉｌ；Ａである。That is, in this invention, the Aρ rod is selected from Ag, Zr, and Sn, and this one type of element is 0.02-0.2%.
Covered with fine gold containing! This is a stabilized film for superconductive composite conductors, which has the following characteristics.
〈作用〉 以下、この発明を図面を参照して詳細に説明する。<Effect> Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図においでｌＪ、、コはＳｎ、Ｚｒあるい（ま八。In Figure 1, lJ, ko are Sn, Zr or (mahachi).
を０．０２〜０．２％含有したＣｕ合金層２を被覆した
高純度ＡρＣ゛ある。There is a high-purity AρC coated with a Cu alloy layer 2 containing 0.02 to 0.2% of AρC.
この発明は第１図に断面構造を示Ｊように集合導体にＣ
ｕ合金被覆したへ〇祠を安定化４Ａとして用いるもので
ある。ここでＣ１合金被覆八へは気合金管中にＡ＆棒を
入れて作製した複合ビレットの押出し、あるいはＣＩＬ
合金パイプとＡ＆棒の複合伸線によって作製される３３
なお第１図にａｉＬプる３はＮｂ −ＴＬまたはＮｂ５
ＳｎＪへ細多芯超電導線である。In this invention, the cross-sectional structure is shown in FIG.
A u-alloy coated hemium is used as the stabilizing 4A. Here, C1 alloy coating 8 is produced by extrusion of a composite billet made by putting A & rod into a gas alloy tube, or CIL
33 made by composite wire drawing of alloy pipe and A & rod
In addition, aiL pull 3 in Figure 1 is Nb -TL or Nb5
SnJ is a thin multicore superconducting wire.
この発明において高紬磨へｇ棒の外周を被覆する罰金金
層の索４Ａど４ＴるＣ１合金にはＡｇ、Ｚｒ、Ｓｎの何
れか１種を０．０２へ、０．２％含有さゼたことか特徴
であるか、これｔＪ、電気抵抗を低下させることなくＣ
ｕの弾痕を増加ざ１！るので゛ある。In this invention, the fine gold layer cable 4A, 4T, and C1 alloy that coats the outer periphery of the g-rod in Takatsugi contain 0.02% to 0.2% of any one of Ag, Zr, and Sn. Perhaps this is a characteristic of tJ, C without decreasing electrical resistance.
Increase the number of bullet holes in u! There is because there is.
このＡｇ、Ｚｒ、ＳｎのＣｕ合金中への含有量を０．０
２へ・（）、２％とするの（コ１．０．０２％以下では
機械的強１良を増加させるのに不十分であること、また
０、２％以上を加えめど、電気抵抗の大ぎな増加を生じ
ること、さらに加ＩＴ二性を劣化さμるので好ましくな
いためである。The content of Ag, Zr, and Sn in the Cu alloy is 0.0
Go to 2.(), 2% (1.0.02% or less is insufficient to increase mechanical strength, and adding 0.2% or more will increase electrical resistance. This is because it is undesirable because it causes a large increase and further deteriorates the added IT duality.
また、この発明の安定化材の他の一例を示すと、第２図
のようにＮｂ −ＴＬ極細多芯超電導線からなるモノリ
シック導体４の外周を高純度へρ１、さらにその最外周
をＣ１合金層で被覆したものである。これは複合ビレツ
１〜の押出し、またはＣｕパイプ、Ａρバイブ、Ｎｂ−
ＴＬ超電導導体の複合伸線にＪ、って作製することもで
きる。In addition, to show another example of the stabilizing material of the present invention, as shown in FIG. It is coated with a layer. This can be done by extruding composite billet 1 or Cu pipe, Aρ vibe, Nb-
It is also possible to produce J by composite wire drawing of TL superconducting conductor.
〈実施例〉 以下、この発明を実施例ににり説明する。<Example> The present invention will be explained below with reference to Examples.
下記、第１表に示した組成のＣ１１合金からなる外−４
＝
径７０ａｎの管の中に９９．９９％のＡ＆棒を入れ、上
、下問じＣｕ合金からなる諸をし、真空室中でＣ１１合
金管内部を真空引ぎした後、蓋を電子ビーム溶接して、
複合ビレツ１〜を作製した。Outer-4 made of C11 alloy with the composition shown in Table 1 below.
= A 99.99% A & rod was placed in a tube with a diameter of 70an, the upper and lower parts were made of Cu alloy, the inside of the C11 alloy tube was evacuated in a vacuum chamber, and the lid was exposed to an electron beam. weld,
Composite billet 1~ were produced.
これを静水圧押出機を用いて３０ｍφに押出した。ここ
でＣ１合金の被覆率は１５％である。This was extruded to a size of 30 mφ using a hydrostatic extruder. Here, the coverage of C1 alloy is 15%.
次に押出材を伸線および圧延し、３×１６−の板を２枚
、５×１０−の板を１枚作製した。Next, the extruded material was drawn and rolled to produce two 3 x 16- plates and one 5 x 10- plate.
これらの板材と別途作製した５ Ｘ ５ ｍ％のＮｂ
−ＴＬ極細多芯超電導線を半田（Ｐｂ−８ＴＩ共品合金
）で接着合体して大容量の超電導導体を得た。These plates and 5 x 5 m% Nb prepared separately
-TL ultra-fine multicore superconducting wires were bonded together with solder (Pb-8TI alloy) to obtain a large-capacity superconducting conductor.
一方、この発明による８ｍ径の０１合金被’ＪＡρ棒を
用い、回転曲げ疲労試験により耐疲労強度を調べた。ま
た４、２Ｋにおいて、電気抵抗率を測定した。その結果
は第１表に示した。On the other hand, using a 01 alloy coated 'JAρ bar with a diameter of 8 m according to the present invention, its fatigue strength was examined by a rotary bending fatigue test. Furthermore, the electrical resistivity was measured at 4 and 2K. The results are shown in Table 1.
なお比較のために測定した９９．９９％八ρへに比べ、
電気抵抗率は若干増加しているが、耐疲労強度が著しく
改善されていることが認められた。In addition, compared to 99.99% 8ρ measured for comparison,
Although the electrical resistivity increased slightly, it was observed that the fatigue strength was significantly improved.
第１表
〈発明の効果〉
以」二のように、この発明は超電導複合導体用の安定化
材として八〇、Ｚｒ、Ｓｎのうちの１種を０．０２〜０
．２％含有したＣ１１合金で被覆したＡ＆を用いるもの
であり、通常、超電導の安定化材として用いられでいる
Ｃｕに比べ、超電導を安定化させる力が大ぎい。Table 1 <Effects of the Invention> As shown in 2 below, this invention uses one of 80, Zr, and Sn as a stabilizing material for superconducting composite conductors in the amount of 0.02 to 0.
．． It uses A& coated with a C11 alloy containing 2%, and has a greater ability to stabilize superconductivity than Cu, which is normally used as a stabilizing material for superconductivity.
これは極低温で、特に高磁界において、Ｃ１ｉに比べ電
気抵抗率の小さいＡ＆を用いているためである。This is because A&, which has a lower electrical resistivity than C1i, is used at extremely low temperatures, especially in a high magnetic field.
また、通常安定化材における疲労フラッフは、材料の表
面で発生し、内部に伝播する。Furthermore, fatigue fluff in stabilized materials usually occurs on the surface of the material and propagates inside.
この発明は材料外周をＡｇ、Ｚｒ、Ｓｎの何れかを０．
０２〜０．２％含有したＣＵＬ合金層とすることにより
耐疲労強度を向上させることができたのである。In this invention, the outer periphery of the material is coated with 0.0% of Ag, Zr, or Sn.
By creating a CUL alloy layer containing 0.02 to 0.2%, fatigue strength could be improved.
第１図はこの発明になる安定化材の１例を示す断面構造
図、第２図はこの発明の他の１例を示す平面図である。FIG. 1 is a sectional structural view showing one example of the stabilizing material according to the invention, and FIG. 2 is a plan view showing another example of the invention.
Claims (2)
１種類の元素を０．０２〜０．２重量％含有したＣｕ合
金で被覆したことを特徴とする超電導複合導体用安定化
材。(1) Stabilization for superconducting composite conductors characterized by coating a pure Al rod with a Cu alloy containing 0.02 to 0.2% by weight of one type of element selected from Ag, Zr, and Sn. Material.
許請求の範囲第１項記載の超電導複合導体用安定化材。(2) The stabilizing material for a superconducting composite conductor according to claim 1, wherein the pure Al rod has a purity of 99.9% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60065508A JPS61224213A (en) | 1985-03-28 | 1985-03-28 | Stabilizing material for superconducting composite body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60065508A JPS61224213A (en) | 1985-03-28 | 1985-03-28 | Stabilizing material for superconducting composite body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61224213A true JPS61224213A (en) | 1986-10-04 |
| JPH0568805B2 JPH0568805B2 (en) | 1993-09-29 |
Family
ID=13289074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60065508A Granted JPS61224213A (en) | 1985-03-28 | 1985-03-28 | Stabilizing material for superconducting composite body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61224213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251113A (en) * | 1985-08-29 | 1987-03-05 | 住友電気工業株式会社 | Copper stabilized nb-ti superconductor |
| JPH02243733A (en) * | 1989-03-15 | 1990-09-27 | Fujikura Ltd | Copper alloy wire rod |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59224007A (en) * | 1983-06-02 | 1984-12-15 | 日立電線株式会社 | Composite superconductive conductor |
-
1985
- 1985-03-28 JP JP60065508A patent/JPS61224213A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59224007A (en) * | 1983-06-02 | 1984-12-15 | 日立電線株式会社 | Composite superconductive conductor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251113A (en) * | 1985-08-29 | 1987-03-05 | 住友電気工業株式会社 | Copper stabilized nb-ti superconductor |
| JPH02243733A (en) * | 1989-03-15 | 1990-09-27 | Fujikura Ltd | Copper alloy wire rod |
| JPH0477060B2 (en) * | 1989-03-15 | 1992-12-07 | Fujikura Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0568805B2 (en) | 1993-09-29 |
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