JPH0644834A - Ceramics superconductive conductor - Google Patents
Ceramics superconductive conductorInfo
- Publication number
- JPH0644834A JPH0644834A JP4218234A JP21823492A JPH0644834A JP H0644834 A JPH0644834 A JP H0644834A JP 4218234 A JP4218234 A JP 4218234A JP 21823492 A JP21823492 A JP 21823492A JP H0644834 A JPH0644834 A JP H0644834A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- ceramics
- former
- cross
- tape
- 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
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
Description
【０００１】[0001]
【産業上の利用分野】本発明は例えばケーブル等のよう
な電力輸送に用いられる多芯型、又は多層型のセラミッ
クス超電導線材を用いたセラミックス超電導々体に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic superconducting body using a multicore or multilayer type ceramic superconducting wire used for electric power transportation such as a cable.
【０００２】[0002]
【従来の技術】Ｙ系、Ｂｉ系、Ｔｌ系などのように、液
体窒素温度を超えるＴｃをもったセラミックス超電導体
が知られている。このようなセラミックス超電導体の応
用、利用を目的に、これらのセラミックス超電導体を種
々の形状に成型することが、鋭意検討されている。例え
ば、線材を作製する場合には、一般に金属シース法が応
用されている。この金属シース法とは、超電導体となし
得るセラミックスの原料を金属製のパイプ内に充填して
複合ビレットとなし、この複合ビレットに断面減少加工
を加えて所望形状、寸法の複合線に仕上げ、しかる後、
熱処理を施して、超電導体となして、目的のセラミック
ス超電導線材とするものである。2. Description of the Related Art Ceramic superconductors having a Tc higher than the temperature of liquid nitrogen, such as Y series, Bi series, and Tl series, are known. For the purpose of application and utilization of such ceramic superconductors, molding of these ceramic superconductors into various shapes has been earnestly studied. For example, when manufacturing a wire rod, a metal sheath method is generally applied. With this metal sheath method, a raw material of ceramics that can be a superconductor is filled into a metal pipe to form a composite billet, and the composite billet is subjected to cross-section reduction processing to finish into a composite wire of a desired shape and size, After that,
It is heat-treated to be a superconductor, which is a target ceramics superconducting wire.
【０００３】また、得られる線材の形状としては、断面
が丸型、楕円形、四角形、テープ状など、あるいはこれ
らの線材を複数本束ねた形状の多芯型線材、更には金属
の内部にセラミックス超電導線が同芯円状または渦巻状
に配置された構造の多層型線材なども種々試作され検討
されている。また、複合ビレットの断面減少加工方法と
しては、目的の線材の形状に応じて押し出し、圧延、引
き抜き、スウェージングなど、従来の塑性加工法がその
まま適用されている。そして複合ビレットに用いる金属
の材質としては、熱伝導性、電気伝導性に優れた材料、
例えば、Ａｇ、Ａｇ合金、Ｃｕ、Ｃｕ合金などが適用で
きるが、酸素透過性、耐酸化性の点で、Ａｇ、Ａｇ合金
を用いる例が多い。Further, the shape of the obtained wire is round, elliptical, quadrangular, tape-shaped or the like, or a multi-core wire having a plurality of these wire bundles, and further, a ceramic inside a metal. Various prototypes of multi-layered wire rods having a structure in which superconducting wires are arranged concentrically or spirally have been produced and studied. Further, as a method for reducing the cross section of the composite billet, conventional plastic working methods such as extrusion, rolling, drawing, and swaging according to the shape of the target wire are applied as they are. And as the material of the metal used for the composite billet, a material having excellent thermal conductivity and electrical conductivity,
For example, Ag, Ag alloy, Cu, Cu alloy and the like can be applied, but Ag and Ag alloy are often used in terms of oxygen permeability and oxidation resistance.
【０００４】このようなセラミックス超電導線材を例え
ばケーブルのように、電力輸送用の導体に適用すること
が検討されている。図４は、その一例を示したもので、
金属とセラミックス超電導体とからなる平らな複合テー
プ状線材１を中空のフォーマ２上に螺旋状に巻回配置し
た導体層３を３層積層した構造の導体である。かかる構
造のセラミックス超電導々体では、導体層３の構成に複
数枚のテープ状線材を用いるため、導体層３を形成する
際のテープ状線材１のハンドリングが比較的に困難であ
る。これらテープ状線材をあらかじめ、所望数積層して
おき、これをフォーマ２上に巻回して複数の導体層３を
形成する場合も同様である。Application of such a ceramics superconducting wire to a conductor for electric power transportation, such as a cable, has been studied. Fig. 4 shows an example of this.
The conductor has a structure in which a flat composite tape-shaped wire 1 made of a metal and a ceramics superconductor is spirally wound on a hollow former 2 and three conductor layers 3 are laminated. In the ceramic superconductor having such a structure, since a plurality of tape-shaped wire rods are used to form the conductor layer 3, it is relatively difficult to handle the tape-shaped wire rod 1 when forming the conductor layer 3. The same applies when a desired number of these tape-shaped wire rods are stacked in advance and the tape-shaped wire rods are wound on the former 2 to form a plurality of conductor layers 3.
【０００５】更に上記平らな複合テープ状線材１を用い
た導体において、比較的に幅の狭いテープ状線材１を用
いる場合には、作業性が低下し、幅の広いテープ状線材
１を用いる場合には、大径のフォーマを用いなければな
らず得られる導体外径が大径になる。またフォーマ２に
平らなテープ状線材１を巻き付ける場合、図３に示した
ように外側の線材が変形し易く、これに基づき、得られ
る導体の超電導特性が低下するなどの欠点があった。Further, in the conductor using the flat composite tape-shaped wire 1, when the tape-shaped wire 1 having a relatively narrow width is used, the workability is lowered, and when the tape-shaped wire 1 having a wide width is used. For this reason, a large diameter former must be used, and the obtained conductor outer diameter becomes large. In addition, when the flat tape-shaped wire 1 is wound around the former 2, the outer wire is easily deformed as shown in FIG. 3, and based on this, there is a drawback that the superconducting property of the obtained conductor is deteriorated.
【０００６】[0006]
【発明が解決しようとする課題】本発明は上述の如き、
問題に鑑みてなされたものであり、フォーマ上での導体
層の形成が容易で、優れた特性を持ち、かつセラミック
ス超電導体の占積率の高い多芯型、または多層型のセラ
ミックス超電導線材を用いたケーブルなどのような電力
輸送用に好適なセラミックス超電導々体を提供するもの
である。SUMMARY OF THE INVENTION The present invention is as described above.
It was made in view of the problem, and it is easy to form a conductor layer on a former, has excellent characteristics, and has a high space factor of a ceramic superconductor. The present invention provides a ceramics superconducting body suitable for electric power transportation such as used cables.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明は、断面
が扇型であり、内部にセラミックス超電導線が配置され
た超電導線材の所望数本を、フォーマの外周上に、線材
相互間に所望の空隙間隔をもって螺旋状に巻回配置して
構成した導体層が所望数積層されていることを特徴とす
るセラミックス超電導々体である。According to a first aspect of the present invention, a desired number of superconducting wire rods each having a fan-shaped cross section and having ceramic superconducting wires arranged therein are provided on the outer periphery of a former and between the wire rods. It is a ceramic superconducting body characterized in that a desired number of conductor layers formed by spirally winding and arranging the layers with a desired gap interval are laminated.
【０００８】前記超電導線材としては、セラミックス超
電導線が一本以上配置されたものを各種利用できる。又
セラミックス超電導線が複数本配置された超電導線材に
おいては、セラミックス超電導線が多芯に配置されたも
のであっても、多層に配置されたものであっても良い。As the above-mentioned superconducting wire, various ones in which one or more ceramic superconducting wires are arranged can be used. Further, in the superconducting wire rod in which a plurality of ceramic superconducting wires are arranged, the ceramic superconducting wires may be arranged in multiple cores or in multiple layers.
【０００９】以下本発明を具体例を挙げて詳細に説明す
る。図１ａは本発明のセラミックス超電導々体の一例を
示した断面説明図で、図中１０は、金属の内部にセラミ
ックス超電導線が多数配置された断面扇型の線材、２０
は金属製の中空のフォーマ、４０は必要に応じて導体層
６０上に巻回して配置させる押えテープ、５０は導体層
６０を形成する線材１０，１０間に設けた空隙部であ
る。なお、この空隙部５０は各導体層６０毎に設けても
よく。又一層おきに設けてもよい。また、空隙部５０は
線材１０の１本おきのみでなく、複数本おきに設けられ
ても良い。The present invention will be described in detail below with reference to specific examples. FIG. 1a is a cross-sectional explanatory view showing an example of a ceramics superconducting body of the present invention. In the figure, 10 is a cross-section fan-shaped wire rod in which a large number of ceramics superconducting wires are arranged inside a metal, 20.
Is a hollow metal former, 40 is a holding tape which is wound and arranged on the conductor layer 60 as required, and 50 is a void portion provided between the wire rods 10 forming the conductor layer 60. The void portion 50 may be provided for each conductor layer 60. Further, it may be provided every other layer. Further, the voids 50 may be provided not only every other wire rod 10 but also every other wire rod 10.
【００１０】図１ｂは導体層６０をなす線材１０の一部
に代えて補強用金属線材３０が用いられたタイプを示す
ものである。図１ｂの如く適当数の補強用金属線材３０
を配置させたタイプのセラミックス超電導々体は、導体
全体としての強度が向上すると共に、線材の巻き取りな
どの工程で張力付加できるなど製造される線材の取扱い
が容易となる利点がある。なお補強用金属線材３０の材
質は特に制約はなく、例えばＣｕ、Ａｌ、Ｆｅ、ＳＵＳ
等が好ましい。FIG. 1b shows a type in which a reinforcing metal wire 30 is used in place of a part of the wire 10 forming the conductor layer 60. An appropriate number of reinforcing metal wire rods 30 as shown in FIG. 1b.
The ceramic superconducting body of the type in which is arranged has the advantages that the strength of the conductor as a whole is improved, and that tension can be applied in the process of winding the wire and the manufactured wire is easy to handle. The material of the reinforcing metal wire 30 is not particularly limited, and may be Cu, Al, Fe, SUS, for example.
Etc. are preferred.
【００１１】また図２ａ及び図２ｂは本発明のセラミッ
クス超電導々体をなす断面扇型の線材１０の一例を示す
断面図で、図２ａはセラミックス超電導線Ａが複合金属
材Ｂ中に多数分散配置された多芯型、図２ｂはテープ状
のセラミックス超電導線Ｃが複合金属材Ｂ中に積層配置
された多層型のセラミックス超電導線材の断面図であ
る。この様な多芯型又は多層型のセラミックス超電導線
材は以下の如き方法にて製造できる。即ち、金属製パイ
プ内に超電導体となし得るセラミックス原料を充填して
複合ビレットを作製する。しかるのち、得られた複合ビ
レットに断面減少加工を施して、所望形状の線材を作製
したのち、得られた線材の複数本を束ねて再度、金属パ
イプ内に挿填して多芯型複合ビレットを得る。かかる操
作を２〜３回繰返せば線芯数の多い多芯型複合ビレット
が得られる。また多層型の線材の場合は上記と同様にし
て作製したテープ状線材の所望数を積層したのち、この
積層体を再度金属製パイプ内に挿填して多層型複合ビレ
ットを得る。FIGS. 2a and 2b are sectional views showing an example of a wire rod 10 having a fan-shaped cross section which constitutes the ceramics superconducting body of the present invention. FIG. 2a shows a large number of ceramics superconducting wires A dispersed in a composite metal material B. FIG. 2B is a cross-sectional view of a multi-layered ceramic superconducting wire in which a tape-shaped ceramic superconducting wire C is laminated and arranged in a composite metal material B. Such a multi-core type or multi-layer type ceramics superconducting wire can be manufactured by the following method. That is, a composite billet is prepared by filling a metal pipe with a ceramic raw material that can be a superconductor. After that, the obtained composite billet is subjected to cross-section reduction processing to produce a wire rod of a desired shape, and then a plurality of the obtained wire rods are bundled and again inserted into a metal pipe to be a multi-core composite billet. To get By repeating this operation a few times, a multi-core composite billet having a large number of wire cores can be obtained. In the case of a multilayer type wire rod, after laminating a desired number of tape-shaped wire rods manufactured in the same manner as described above, the laminated body is inserted again into a metal pipe to obtain a multilayer type composite billet.
【００１２】而して作製した複合ビレットに、押出し、
スウェージング、引き抜き、圧延など従来の塑性加工法
を適用して断面減少加工する。なお多芯型線材の場合は
断面形状は丸型、あるいは楕円、多角形の線材にする。
また多層型線材の場合には、極力断面四角形あるいはそ
れに近い断面形状にするのが好ましい。また、寸法は最
終の断面扇型形状に応じて選定するが１mmφ〜５mmφ程
度、或いは１mm〜５mm角程度にするのが望ましい。The composite billet thus produced was extruded,
Apply conventional plastic working methods such as swaging, drawing and rolling to reduce cross section. In the case of a multi-core type wire rod, the cross-sectional shape should be round, oval or polygonal.
In the case of a multi-layered wire, it is preferable to make the cross-section as square as possible or a cross-sectional shape close to it. The size is selected according to the final sectoral shape of the cross section, but it is desirable that the size is about 1 mmφ to 5 mmφ or about 1 mm to 5 mm square.
【００１３】ここで、得られた線材に１回目の熱処理を
施す。この際の温度は用いたセラミックス超電導体の種
類により若干異なるが、例えば、Ｂｉ−Ｐｂ−Ｓｒ−Ｃ
ａ−ＣｕＯ系の場合には８３０〜８５０℃程度に設定す
る。しかる後、熱処理後の線材を所定の断面扇型に仕上
げる。その寸法は巻き付けるフォーマの外径に応じて決
定する。而して得られた断面扇型の線材に２回目の熱処
理を施す。この熱処理はＪｃ特性の向上の目的からであ
る。その条件は１回目の熱処理とほぼ同一にする。なお
この場合、線材をボビンに巻き取った状態で熱処理する
ことも可能である。Here, the obtained wire is subjected to the first heat treatment. The temperature at this time is slightly different depending on the type of ceramics superconductor used, but for example, Bi-Pb-Sr-C is used.
In the case of a-CuO system, it is set to about 830 to 850 ° C. Then, the heat-treated wire is finished into a fan shape with a predetermined cross section. The size is determined according to the outer diameter of the former to be wound. The thus-obtained wire having a fan-shaped cross section is subjected to a second heat treatment. This heat treatment is for the purpose of improving the Jc characteristic. The conditions are almost the same as the first heat treatment. In this case, it is also possible to heat-treat the wire wound on the bobbin.
【００１４】而して得た断面扇型のセラミックス超電導
線材１０を単独、又は補強用金属線材３０と組み合せて
これらの線材をフォーマ２０上に螺旋状に巻き付ける。
なお、一導体層６０を形成する線材の本数、および積層
型とする場合の導体層の積層数などは特に制約されるも
のでなく、電流容量に応じて種々決定できる。線材１
０、３０のフォーマ２０上への巻き付け時には線材１
０、３０相互間に所望の空隙部５０が形成されるように
巻き付ける。巻付けのピッチは線材１０、３０に加わる
曲げ歪率が０．３％程度以下になるように選定するの
が、得られる線材のＩｃ特性の低下を防ぐ意味から望ま
しい。The thus obtained ceramic superconducting wire 10 having a fan-shaped cross section is wound alone or in combination with the reinforcing metal wire 30 on the former 20 in a spiral shape.
The number of wires forming one conductor layer 60 and the number of conductor layers laminated in the case of a laminated type are not particularly limited, and can be variously determined according to the current capacity. Wire 1
When winding 0 or 30 around the former 20, the wire 1
It is wound so that a desired void 50 is formed between 0 and 30. It is desirable to select the winding pitch so that the bending strain rate applied to the wire rods 10 and 30 is about 0.3% or less in order to prevent the Ic characteristics of the wire rods from being deteriorated.
【００１５】[0015]
【作用】本発明のセラミックス超電導々体は導体層６０
を形成する個々のセラミックス超電導線材１０はその断
面形状が扇型であるため、フォーマ上の導体層６０に対
するセラミックス超電導線材の占積率は高く、また外側
導体層６０の線材１０、３０が内側の導体層６０の線材
１０、３０を変形させることもないので、超電導特性の
低下を招かない。また、本発明のセラミックス超電導々
体は導体層６０を形成する線材１０，１０間は空隙部５
０が設けられているため、この部分が冷媒通路となり、
超電導体の冷却効率を向上できると共にクエンチを起し
難いなどの利点を有する。The ceramic superconducting body of the present invention comprises the conductor layer 60.
Since the individual ceramics superconducting wire rods 10 that form a coil have a fan-shaped cross-sectional shape, the space factor of the ceramics superconducting wire rods on the conductor layer 60 on the former is high, and the wire rods 10 and 30 of the outer conductor layer 60 are Since the wires 10 and 30 of the conductor layer 60 are not deformed, the superconducting characteristics are not deteriorated. Further, in the ceramics superconductor of the present invention, the space 5 is formed between the wires 10 forming the conductor layer 60.
Since 0 is provided, this part becomes the refrigerant passage,
It has the advantages that the cooling efficiency of the superconductor can be improved and quenching is difficult to occur.
【００１６】[0016]
【実施例】以下、本発明の実施例を示す。 実施例１ Ｂｉ2 Ｏ3 、ＰｂＯ、ＳｒＣＯ3 、ＣａＣＯ3 、ＣｕＯ
などのＢｉ系セラミックス超電導体の一次原料粉をモル
比でＢｉ：Ｐｂ：Ｓｒ：Ｃａ：Ｃｕが１．６：０．４：
２：２：３となるように秤量し、混合した後、混合物を
大気中８２０℃×５０ｈ仮焼成し、仮焼物を粉砕して仮
焼粉を調製した。而して調製した仮焼粉を外径２５mm
φ、内径２０mmφのＡｇ製パイプ内に充填して複合ビレ
ットとし、この複合ビレットに断面減少加工を施して、
外径１mmφに仕上げた。而して作製した線材の１３０本
を束ねて、再度外径２５mmφ、内径２０mmφのＡｇ製パ
イプ内に挿填して複合ビレットとなした。次にこの複合
ビレットにスウェージング加工、および引き抜き加工を
施して、外径３．９mmφに仕上げ、これを大気中、８４
０℃×５０ｈの熱処理を施した。EXAMPLES Examples of the present invention will be shown below. Example 1 Bi 2 O 3 , PbO, SrCO 3 , CaCO 3 , CuO
Bi: Pb: Sr: Ca: Cu in a molar ratio of the primary raw material powder of a Bi-based ceramics superconductor such as: 1.6: 0.4:
The mixture was weighed to be 2: 2: 3 and mixed, and then the mixture was calcined in the air at 820 ° C. for 50 hours, and the calcined product was crushed to prepare a calcined powder. The calcined powder thus prepared has an outer diameter of 25 mm.
Filled in a pipe made of Ag of φ, inner diameter 20 mmφ to form a composite billet, and subjecting this composite billet to cross-section reduction processing,
Finished to an outer diameter of 1 mmφ. 130 pieces of the wire rod thus produced were bundled and again inserted into an Ag pipe having an outer diameter of 25 mmφ and an inner diameter of 20 mmφ to form a composite billet. Next, swaging and drawing are applied to this composite billet to finish it to an outer diameter of 3.9 mmφ.
Heat treatment was performed at 0 ° C. for 50 hours.
【００１７】しかる後、図２ａに示したように断面扇形
に成形し、内側が直径１２．５mmの円弧で弧の長さ５m
m、外側が直径１４．５mmの円弧で弧の長さ６mm、厚さ
２mm、４ヶ所の角が直径０．５mmの曲面に面取りされた
第１の線材１０を得た。また内側が直径１４．５mmの円
弧で弧の長さ５mm、外側が直径１６．５mmの円弧で弧の
長さ６mm、厚さ２mm、４ヶ所の角が直径０．５mmの曲面
に面取りされた第２の線材１０を得た。更に外径３．７
mmφのＣｕ線も同様に断面扇型に成型した。次に、作製
した線材Ａおよび線材Ｂを各々ボビンに巻き取った状態
で、大気中、８４０℃×５０ｈの熱処理を施した。而し
て作製した各々の線材を外径２５mmφ、内径２０mmφの
ＳＵＳ製パイプ上に１層目に第１の線材１０を８本、Ｃ
ｕ線３０を１本、２層目に第２の線材１０を９本、Ｃｕ
線３０を１本用いてピッチ約１ｍで、かつ全線材１０あ
るいは３０の相互間に均等に空隙部５０が存在するよう
に螺旋状に巻つけ、最外周にＣｕ製テープ４０を螺旋状
に押え巻きして、本発明のセラミックス超電導々体を製
造した。斯くして作製した導体について、液体窒素中、
Ｏ磁場における直流Ｉｃを測定した結果、３８０（Ａ）
の優れた特性が得られた。After that, as shown in FIG. 2a, it is formed into a fan-shaped cross section, and the inside is an arc having a diameter of 12.5 mm and the arc length is 5 m.
A first wire 10 having a circular arc with a diameter of 14.5 mm on the outside and an arc length of 6 mm, a thickness of 2 mm, and four corners chamfered into a curved surface with a diameter of 0.5 mm was obtained. Also, the inside is an arc with a diameter of 14.5 mm, the arc length is 5 mm, the outside is an arc with a diameter of 16.5 mm, the arc length is 6 mm, the thickness is 2 mm, and the four corners are chamfered on a curved surface with a diameter of 0.5 mm. The second wire rod 10 was obtained. Outer diameter 3.7
A Cu wire of mmφ was also formed into a fan-shaped cross section in the same manner. Next, the produced wire A and wire B were wound on bobbins, respectively, and subjected to heat treatment at 840 ° C. for 50 hours in the atmosphere. Each of the thus-prepared wire rods was placed on a SUS pipe having an outer diameter of 25 mmφ and an inner diameter of 20 mmφ, and the first layer had eight first wire rods 10, C
One u wire 30 and 9 second wire 10 in the second layer, Cu
Using one wire 30 with a pitch of about 1 m and spirally winding it so that all the wire rods 10 or 30 have voids 50 evenly between them, and hold the Cu tape 40 spirally on the outermost periphery. It wound and manufactured the ceramic superconducting body of this invention. Regarding the conductor thus produced, in liquid nitrogen,
As a result of measuring the direct current Ic in the O magnetic field, 380 (A)
The excellent characteristics of were obtained.
【００１８】比較例１ 実施例１と同様な方法で作製した１次複合ビレットにス
ウェージング加工および圧延加工を施して幅５mm、厚さ
０．３mmのテープ状線材を作製し、大気中８４０℃×５
０ｈの熱処理を施した後、厚さ０．２５mmまで中間圧延
を行い、再度、大気中、８４０℃×５０ｈ熱処理を施し
て断面長方形状のテープ状線材を作製した。而して作製
したテープ状線材を外径２５mmφ、内径２０mmφのＳＵ
Ｓ製パイプ上にピッチ１ｍとなるように、かつテープ状
線材間に空隙部が生じないように１層当り１５枚、螺旋
状に巻き付け、５層構成して、実施例１とほぼ同一断面
積の導体となし、最外周にＣｕ製テープを螺旋状に押え
巻きして比較例セラミックス超電導々体（図３参照）を
製造した。斯くして作製した導体について、液体窒素
中、Ｏ磁場における直流Ｉｃを測定した結果、１２５
（Ａ）であった。Comparative Example 1 A tape-shaped wire rod having a width of 5 mm and a thickness of 0.3 mm was produced by subjecting a primary composite billet produced by the same method as in Example 1 to swaging and rolling to produce 840 ° C. in air. × 5
After heat treatment for 0 h, intermediate rolling was performed to a thickness of 0.25 mm, and heat treatment was again performed in the atmosphere at 840 ° C. for 50 h to produce a tape wire having a rectangular cross section. The tape-shaped wire produced in this way has an outer diameter of 25 mmφ and an inner diameter of 20 mmφ.
On the S pipe, a pitch of 1 m and 15 layers per layer were spirally wound so that no gaps were formed between the tape-shaped wire rods, and 5 layers were formed. Comparative example ceramics superconductor (see FIG. 3) was manufactured by spirally winding a Cu tape around the outermost periphery. As a result of measuring the direct current Ic in an O magnetic field in liquid nitrogen for the conductor thus produced, 125
It was (A).
【００１９】[0019]
【発明の効果】以上説明した如く、本発明のセラミック
ス超電導々体はフォーマ上での導体層の形成が容易で、
かつセラミックス超電導体の占積率の高いうえ、冷却効
率に優れており、優れた特性を具備している。従って本
発明のセラミックス超電導々体は、ケーブルなど、電力
輸送用の導体として極めて有用である。As described above, in the ceramic superconductor of the present invention, it is easy to form the conductor layer on the former,
Moreover, the ceramic superconductor has a high space factor and is excellent in cooling efficiency, and has excellent characteristics. Therefore, the ceramic superconductor of the present invention is extremely useful as a conductor for power transportation such as a cable.
【図１】本発明セラミックス超電導々体の一実施例品の
断面説明図で、図１ａは補強用金属製線材なし、図１ｂ
は補強用金属製線材入りのものである。1 is a cross-sectional explanatory view of an embodiment of a ceramic superconducting body of the present invention, FIG. 1a is a metal wire rod for reinforcement, FIG.
Is a metal wire rod for reinforcement.
【図２】断面扇型のセラミックス超電導線材の断面説明
図で、図２ａは多芯型、図２ｂは多層型の線材の断面図
である。2A and 2B are cross-sectional explanatory views of a fan-shaped ceramic superconducting wire rod, wherein FIG. 2A is a multi-core wire rod and FIG. 2B is a multi-layer wire rod.
【図３】従来品においてフォーマ上に巻き付けられたテ
ープ状線材の外側のものが変形し易いことを示した断面
説明図である。FIG. 3 is a cross-sectional explanatory view showing that the tape-shaped wire rod wound around the former in the conventional product is easily deformed.
【図４】従来のテープ状線材を用いて構成されたセラミ
ックス超電導々体の斜視断面説明図である。FIG. 4 is a perspective cross-sectional explanatory view of a ceramics superconductor formed by using a conventional tape-shaped wire.
１ テープ状線材 ２ フォーマ ３ 導体層 １０ 断面扇型の多芯型または多層型線材 ２０ フォーマ ３０ 補強用金属製線材 ４０ 押えテープ ５０ 空隙部 ６０ 導体層 Ａ セラミックス超電導線 Ｂ 複合金属材層 Ｃ テープ状セラミックス超電導線 DESCRIPTION OF SYMBOLS 1 tape-shaped wire 2 former 3 conductor layer 10 multi-core or multi-layered wire with cross-section fan type 20 former 30 metal wire for reinforcement 40 holding tape 50 void 60 conductor layer A ceramics superconducting wire B composite metal material layer C tape-like Ceramics superconducting wire
Claims (1)
超電導線が配置された超電導線材の所望数本を、フォー
マの外周上に、線材相互間に所望の空隙間隔をもって螺
旋状に巻回配置して構成した導体層が所望数積層されて
いることを特徴とするセラミックス超電導々体。1. A desired number of superconducting wire rods each having a fan-shaped cross section and having ceramic superconducting wires arranged therein are spirally arranged on the outer periphery of a former with a desired gap between the wire rods. A ceramic superconductor characterized in that a desired number of the conductor layers configured as described above are laminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4218234A JPH0644834A (en) | 1992-07-24 | 1992-07-24 | Ceramics superconductive conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4218234A JPH0644834A (en) | 1992-07-24 | 1992-07-24 | Ceramics superconductive conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0644834A true JPH0644834A (en) | 1994-02-18 |
Family
ID=16716710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4218234A Pending JPH0644834A (en) | 1992-07-24 | 1992-07-24 | Ceramics superconductive conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644834A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005194A (en) * | 1995-06-06 | 1999-12-21 | Siemens Aktiengesellschaft | A.C. cable with two concentric conductor configurations of stranded single conductors |
| US7109425B2 (en) * | 2000-09-27 | 2006-09-19 | Superpower, Inc. | Low alternating current (AC) loss superconducting cable |
| WO2012112923A2 (en) | 2011-02-18 | 2012-08-23 | The Regents Of The University Of Colorado, A Body Corporate | Superconducting cables and methods of making the same |
| JP5936130B2 (en) * | 2010-12-01 | 2016-06-15 | 学校法人中部大学 | Superconducting cable and bus bar |
-
1992
- 1992-07-24 JP JP4218234A patent/JPH0644834A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005194A (en) * | 1995-06-06 | 1999-12-21 | Siemens Aktiengesellschaft | A.C. cable with two concentric conductor configurations of stranded single conductors |
| US7109425B2 (en) * | 2000-09-27 | 2006-09-19 | Superpower, Inc. | Low alternating current (AC) loss superconducting cable |
| JP5936130B2 (en) * | 2010-12-01 | 2016-06-15 | 学校法人中部大学 | Superconducting cable and bus bar |
| WO2012112923A2 (en) | 2011-02-18 | 2012-08-23 | The Regents Of The University Of Colorado, A Body Corporate | Superconducting cables and methods of making the same |
| JP2014507052A (en) * | 2011-02-18 | 2014-03-20 | ザ・レジェンツ・オブ・ザ・ユニバーシティー・オブ・コロラド，ア・ボディー・コーポレイト | Superconducting cable and manufacturing method thereof |
| US8938278B2 (en) | 2011-02-18 | 2015-01-20 | The Regents Of The University Of Colorado | Superconducting cables and methods of making the same |
| EP2676279A4 (en) * | 2011-02-18 | 2016-09-28 | Univ Colorado Regents | Superconducting cables and methods of making the same |
| US9767940B2 (en) | 2011-02-18 | 2017-09-19 | The Regents Of The University Of Colorado, A Body Corporate | Superconducting cables and methods of making the same |
| US10943712B2 (en) | 2011-02-18 | 2021-03-09 | Advanced Conductor Technologies Llc | Superconducting cables and methods of making the same |
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