JPH025311A - Superconductive wire rod - Google Patents
Superconductive wire rodInfo
- Publication number
- JPH025311A JPH025311A JP63157532A JP15753288A JPH025311A JP H025311 A JPH025311 A JP H025311A JP 63157532 A JP63157532 A JP 63157532A JP 15753288 A JP15753288 A JP 15753288A JP H025311 A JPH025311 A JP H025311A
- Authority
- JP
- Japan
- Prior art keywords
- filament
- layer
- superconducting
- wire
- diameter
- 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
- 229910002482 Cu–Ni Inorganic materials 0.000 claims abstract description 9
- 230000004888 barrier function Effects 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 6
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims abstract 3
- 229910020012 Nb—Ti Inorganic materials 0.000 claims description 5
- 239000002131 composite material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 229910003336 CuNi Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application 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
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000657 niobium-tin 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
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は超電導線材、特にパルスマグネット、交流用マ
グネット及び永久?lJEスイソヂに適した超電導線材
に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to superconducting wires, particularly pulsed magnets, alternating current magnets, and permanent magnets. This invention relates to a superconducting wire suitable for IJE Switzerland.
[従来の技術]
従来、通常の直流用超電導マグネットには磁気的安定性
や完全安定化をはかる為に、Nb−TiやNb3Snを
細径化し、その周囲をCuやAQの導電性の高い材料で
被覆した安定化超電導線(オが一般に用いられている。[Conventional technology] Conventionally, in order to achieve magnetic stability and complete stability in normal DC superconducting magnets, Nb-Ti or Nb3Sn is made thinner, and the surrounding area is surrounded by highly conductive materials such as Cu or AQ. Stabilized superconducting wire coated with
最近、超電導の応用分野が拡大するにつれ、永久電流ス
イッチ用導体・■びに変動磁界や交流分野で磁界変動に
伴うロスの少ない超電導線材が開発されつつある。Recently, as the field of application of superconductivity has expanded, superconducting wires with less loss due to magnetic field fluctuations are being developed as conductors for persistent current switches, as well as in the field of fluctuating magnetic fields and alternating current.
この様な分野には、渦電流損、結合損失等の損失を少な
(する7tに、超電導フィラメントを細径化し、かつ超
電導フィラメン!・の周囲をCu−Ni合金等の導電率
の小さな金属で覆った複合超電導線材が用いられること
が多い。第2図に従来の複合超電導線材の断面図を示す
。超電導線材21において、Nb−Tiから成るフィラ
メント1の周囲に、Cu−Niから成る高抵抗層2が、
役けられている。In such fields, in order to reduce losses such as eddy current loss and coupling loss, the diameter of the superconducting filament is reduced to 7 tons, and the surroundings of the superconducting filament are made of a metal with low conductivity such as a Cu-Ni alloy. A covered composite superconducting wire is often used. Fig. 2 shows a cross-sectional view of a conventional composite superconducting wire. In the superconducting wire 21, a high-resistance wire made of Cu-Ni is placed around the filament 1 made of Nb-Ti. Layer 2 is
Being useful.
複合超電導線材は、一般にフィラメント径が10数ミク
ロン、場合によってはサブミクロン以下に加工されるこ
とが多(、細径化に伴いフィラメントの断線等が発生し
易い、熱処理時にCuとTiの反応層が形成し易い、電
流密度を高くとれない等の問題があった。Composite superconducting wires are generally processed to have a filament diameter of 10-odd microns, sometimes submicron or less. There were problems such as easy formation of carbon dioxide and the inability to obtain a high current density.
[発明が解決しようとする課題1
本発明の目的は、フィラメント断線が発生しにくい、高
い臨界電流密度と低い交流損失をかね(、iiHえた超
電導線材を提供することにある。[Problem to be Solved by the Invention 1] An object of the present invention is to provide a superconducting wire that is less likely to cause filament breakage and has a high critical current density and low AC loss.
し課題を解決するための手段]
本発明の粱旨は、N b−T ikB電導フィラメント
の周囲にCu −N i層を配した超電導線材において
、超電導フィラメントとCu−Ni層の間にNb、’r
a咬び■から成ろ昨から選択された少な(とも11の金
属から成るバリア層を介在させたごとを特徴とする超電
導線材に存する。[Means for Solving the Problems] The gist of the present invention is to provide a superconducting wire in which a Cu-Ni layer is arranged around a Nb-TikB conductive filament, in which Nb, Nb, 'r
The present invention is a superconducting wire material characterized by interposing a barrier layer consisting of a metal, a metal, and a metal.
第1図は、本発明の超電導線材の断面図である。FIG. 1 is a sectional view of the superconducting wire of the present invention.
超電導線(オ11においで、フィラメント1とCuNi
層2の間にバリア層3が設けられている。Superconducting wire (O11, filament 1 and CuNi
A barrier layer 3 is provided between the layers 2 .
フィラメントの直径は、通常、0.1〜20μmである
。The diameter of the filament is usually 0.1 to 20 μm.
Cu−Ni層の早さは、通常、0.01−1071mで
ある。The speed of the Cu-Ni layer is typically 0.01-1071 m.
バリヤ層の厚さは、通常、0.01〜5μmである。The thickness of the barrier layer is typically 0.01-5 μm.
本発明の超電導線材の製造は、例えば、Nl)、1’
a及び■から成る群から選択された少なくとら1種の金
j14から成るノートをNb−′r1合金棒の周囲に披
せた後、これをCu−Ni合金パイプの中に挿入し、次
いて伸線電ることによって行うことができろ。In the production of the superconducting wire of the present invention, for example, Nl), 1'
After a note made of at least one type of gold j14 selected from the group consisting of a and This can be done by drawing wire.
[発明の効果]
超電導フィラメント(主としてNb−Ti中のTi)ど
C11−’ N 1OjtllitN材)層の間に介在
するNb、Ta又はv等の金属層が、CuとTiの反応
を防+LL、超電導臨界電流密度を一ヒ昇する目的で行
なう熱処理時にCu/Ti反応層を生成させない。した
がって、フィラメントの断線が生じにくく、高い電流密
度と低い交流損失をかね備えた超電導線材を提供するこ
とが出来る。[Effect of the invention] A metal layer such as Nb, Ta or v interposed between the superconducting filament (mainly Ti in Nb-Ti) layers prevents the reaction between Cu and Ti. A Cu/Ti reaction layer is not generated during heat treatment for the purpose of increasing the superconducting critical current density. Therefore, it is possible to provide a superconducting wire that is less prone to filament breakage and has both high current density and low AC loss.
本発明の超1■1導線材は、パルスマグネットや交流用
マグネットにおいて最適であり、永久電流スイッチ用導
体にも応用できる。The super 1×1 conductive wire of the present invention is optimal for pulsed magnets and AC magnets, and can also be applied to conductors for persistent current switches.
E実施例] 以下、本発明の実施例及び比較例を示す。E Example] Examples and comparative examples of the present invention are shown below.
実施例1
直径約3開のNb−Ti棒の周囲に厚さ約0.1mum
のN1)ノートを彼U°、さらに内径3 、5 mm、
外径4.5mmのCu−10%Ni合金管に挿入し、複
合線を形成した。この複合線を直径0 、2 mmまで
伸線し、切断後、約350本を内径4,51のCuバイ
ブ中に集合し、−次嵌合材を製造した。この−次嵌合材
を直径0 、411In+まで伸線し、内径4IIII
IのCuバイブ中に集合し、21000本の二次嵌合材
とした。二次嵌合材を直径llll11で350℃で5
0時間熱処理後、直径0.11に伸線して超Ti導線材
を製造した。1′vにおける臨界電流密度は400 Q
A /m*’と滑れた特性がj)られた。Example 1 A Nb-Ti rod with a thickness of about 0.1 mm is placed around a diameter of about 3 mm.
N1) Add a note to the inner diameter of 3 mm, 5 mm,
It was inserted into a Cu-10% Ni alloy tube with an outer diameter of 4.5 mm to form a composite wire. This composite wire was drawn to a diameter of 0.2 mm, and after cutting, about 350 wires were assembled in a Cu vibe with an inner diameter of 4.51 mm to produce a second fitting material. This second fitting material was drawn to a diameter of 0,411In+, and an inner diameter of 4III
They were assembled in the Cu vibe of I and made into 21,000 pieces of secondary fitting material. The secondary fitting material was heated to 350°C with a diameter of 11
After heat treatment for 0 hours, the wire was drawn to a diameter of 0.11 to produce a super Ti conductive wire. The critical current density at 1'v is 400 Q
The property of slipping was A/m*'.
比較例I
Nbバリアを使用しない以外は、実施例1と同様にして
超電導線材を製造した。臨界電流密度が2000Δ/I
++2’と低く、フィラメント断線が多数観察された。Comparative Example I A superconducting wire was produced in the same manner as in Example 1, except that the Nb barrier was not used. Critical current density is 2000Δ/I
It was as low as ++2', and many filament breaks were observed.
第1図は本発明の超電導線材の断面図であり、第2図は
従来の超電導線材の断面図である。
1・・・フィラメント、2 cu−Ni層、3甲バリ
ア層、11.21 ・・超電導線材。
特許出頼人住友電気工業株式会社
代理人 弁理士 青山葆 はか1名
第
図
第2図
持開干2−5311(3)FIG. 1 is a sectional view of a superconducting wire according to the present invention, and FIG. 2 is a sectional view of a conventional superconducting wire. 1... Filament, 2 cu-Ni layer, 3 A barrier layer, 11.21... Superconducting wire. Patent originator Sumitomo Electric Industries, Ltd. Agent Patent attorney Haka Aoyama 1 person Figure 2 Mochikaiho 2-5311 (3)
Claims (1)
層を配した超電導線材において、超電導フィラメントと
Cu−Ni層の間にNb、Ta及びVから成る群から選
択された少なくとも1種の金属から成るバリア層を介在
させたことを特徴とする超電導線材。1.Cu-Ni around Nb-Ti superconducting filament
A superconducting wire comprising layers, characterized in that a barrier layer made of at least one metal selected from the group consisting of Nb, Ta and V is interposed between the superconducting filament and the Cu-Ni layer. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63157532A JPH025311A (en) | 1988-06-23 | 1988-06-23 | Superconductive wire rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63157532A JPH025311A (en) | 1988-06-23 | 1988-06-23 | Superconductive wire rod |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH025311A true JPH025311A (en) | 1990-01-10 |
Family
ID=15651732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63157532A Pending JPH025311A (en) | 1988-06-23 | 1988-06-23 | Superconductive wire rod |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH025311A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009231201A (en) * | 2008-03-25 | 2009-10-08 | Kobe Steel Ltd | NbTi-BASED SUPERCONDUCTING WIRE MATERIAL AND ITS MANUFACTURING METHOD |
US10048181B2 (en) | 2014-12-23 | 2018-08-14 | Hydro Aluminium Rolled Products Gmbh | Device for performing a bending test |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60170111A (en) * | 1984-02-14 | 1985-09-03 | 住友電気工業株式会社 | Copper coated nbti superconductive lead |
JPS62262312A (en) * | 1986-05-07 | 1987-11-14 | 日立電線株式会社 | Nb-ti alloy system superconductor wire material |
JPS63102115A (en) * | 1986-10-17 | 1988-05-07 | 三菱電機株式会社 | Manufacture of superconductive alloy wire material |
-
1988
- 1988-06-23 JP JP63157532A patent/JPH025311A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60170111A (en) * | 1984-02-14 | 1985-09-03 | 住友電気工業株式会社 | Copper coated nbti superconductive lead |
JPS62262312A (en) * | 1986-05-07 | 1987-11-14 | 日立電線株式会社 | Nb-ti alloy system superconductor wire material |
JPS63102115A (en) * | 1986-10-17 | 1988-05-07 | 三菱電機株式会社 | Manufacture of superconductive alloy wire material |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009231201A (en) * | 2008-03-25 | 2009-10-08 | Kobe Steel Ltd | NbTi-BASED SUPERCONDUCTING WIRE MATERIAL AND ITS MANUFACTURING METHOD |
US10048181B2 (en) | 2014-12-23 | 2018-08-14 | Hydro Aluminium Rolled Products Gmbh | Device for performing a bending test |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102205386B1 (en) | Diffusion barrier for metallic superconducting wires | |
JPH0268820A (en) | Electric conductor in the form of wire or cable | |
US5104745A (en) | Multifilament superconductor strand having an anti-diffusion barrier layer | |
US3570118A (en) | Method of producing copper clad superconductors | |
JPH025311A (en) | Superconductive wire rod | |
JP2011124575A (en) | Superconductor with improved mechanical strength | |
JPH0471112A (en) | Manufacture of aluminum stabilized super conductor | |
JPH0570888B2 (en) | ||
JP3754522B2 (en) | Nb (3) Sn superconducting wire | |
Kreilick et al. | Further improvements in current density by reduction of filament spacing in multifilamentary Nb Ti superconductors | |
JP2003045247A (en) | Superconductive cable | |
JP2003086041A (en) | MANUFACTURING METHOD OF Nb3Sn SUPERCONDUCTIVE WIRE BY POWDER METHOD | |
JPH0714442A (en) | Nbti superconducting wire for palse or ac | |
JP3701349B2 (en) | Superconducting wire manufacturing method and superconducting wire | |
Wong et al. | Development of artificial pinning center NbTi multifilamentary superconductors for commercial applications | |
JP2001057118A (en) | SUPERCONDUCTING WIRE OF Nb3Sn COMPOUND AND MANUFACTURE THEREOF | |
JP2008166173A (en) | Nb3Sn SUPERCONDUCTIVE WIRE, PRECURSOR THEREFOR, AND Nb COMPOUND SINGLE CORE FOR PRECURSOR | |
Hong et al. | High current density of NbTi composite | |
JPH05325664A (en) | Compound superconductive wire rod | |
Sakai et al. | Critical current densities and magnetic hysteresis losses in submicron filament bronze-processed Nb/sub 3/Sn wires | |
JPH0146963B2 (en) | ||
JPS6313286B2 (en) | ||
JPH09106715A (en) | Extremely thin multiple core nb-ti superconducting wire | |
JP2005032631A (en) | Powder method nb3sn superconducting wire rod | |
JPH06349349A (en) | Superconductive wire |