JP2639958B2 - magnet - Google Patents
magnetInfo
- Publication number
- JP2639958B2 JP2639958B2 JP7118888A JP7118888A JP2639958B2 JP 2639958 B2 JP2639958 B2 JP 2639958B2 JP 7118888 A JP7118888 A JP 7118888A JP 7118888 A JP7118888 A JP 7118888A JP 2639958 B2 JP2639958 B2 JP 2639958B2
- Authority
- JP
- Japan
- Prior art keywords
- superconducting material
- single crystal
- magnet
- circuit
- oxide
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はマグネットに関し、更に詳しくは超電導材料
をその一構成要素として使用したマグネットに関する。Description: TECHNICAL FIELD The present invention relates to a magnet, and more particularly, to a magnet using a superconducting material as one of its components.
最近超電導材料が脚光を浴び、これを利用する試みが
行われている。Recently, superconducting materials have been spotlighted, and attempts have been made to utilize them.
超電導性を示す材料の一つとして酸化物系セラミック
が知られているが、一般にこの種材料は焼結後の加工性
が極端に悪く、実用的利用の面で大きな障害となってい
る。Oxide-based ceramics are known as one of the materials exhibiting superconductivity. However, in general, such materials have extremely poor workability after sintering, which is a major obstacle in practical use.
たとえば、この酸化物系セラミックを電線として利用
する場合には線材の焼結後の曲げ加工は、焼結体自体の
脆さにより極めて困難である。For example, when this oxide-based ceramic is used as an electric wire, it is extremely difficult to bend the wire after sintering because of the brittleness of the sintered body itself.
また更にこの種酸化物系セラミック超電導線材は、こ
れに流せる電流値（所謂Jc値）が低くこの面からもその
実用的利用に制限を受けている。Further, this kind of oxide ceramic superconducting wire has a low current value (so-called Jc value) that can be passed through it, and from this aspect, its practical use is limited.
本発明が解決しようとする課題は、酸化物系セラミッ
ク超電導材料の上記難点を解決することであり、これを
換言すれば、この種超電導材料品の曲げ加工などの必要
がなく、しかも実用的使用が充分可能な程度に高い電流
値を得られる新しい利用分野を開発することである。The problem to be solved by the present invention is to solve the above-mentioned difficulties of the oxide-based ceramic superconducting material. In other words, there is no need for bending such a superconducting material product, and practical use is not required. Is to develop a new field of application that can obtain a current value as high as possible.
この課題、酸化物系セラミック超電導材料から成る層
を、単結晶からなり且つ該単結晶のｃ軸方向に厚みを有
する単結晶基板上に形成してマグネット用回路単板を作
成し、この回路単板を複数個積層して電流回路を形成
し、これを冷却した状態となして電流を流すことにより
マグネットを形成せしめることにより解決される。The object is to form a circuit single plate for a magnet by forming a layer made of an oxide-based ceramic superconducting material on a single crystal substrate made of a single crystal and having a thickness in the c-axis direction of the single crystal. This problem is solved by laminating a plurality of plates to form a current circuit, cooling the circuit, and applying a current to form a magnet.
本発明に於いては、第１図に示す如く、単結晶よりな
る基板（１）上に酸化物系セラミック超電導材料層
（２）を適宜な手段で形成しているので、線材化並びに
その曲げ加工などを行う必要はなく、この点に関する従
来の難点は全く存在しない。また基板（１）は単結晶基
板であり、しかもその結晶のｃ軸が該基板の厚みの方
向、即ち垂直方向になるように用いている。また超電導
層はａ軸並びにｂ軸方向に配向し、このため電流密度が
その分大きくなり、惹いては電流値を大きくすることが
出来る。In the present invention, as shown in FIG. 1, an oxide-based ceramic superconducting material layer (2) is formed on a substrate (1) made of a single crystal by an appropriate means. There is no need to perform processing or the like, and there is no conventional difficulty in this regard. The substrate (1) is a single crystal substrate, and the c-axis of the crystal is used in the direction of the thickness of the substrate, that is, in the vertical direction. Further, the superconducting layer is oriented in the a-axis direction and the b-axis direction, so that the current density increases accordingly, and the current value can be increased accordingly.
本発明のマグネットの好ましい一実施例を図面を参照
しつつ以下に説明する。One preferred embodiment of the magnet of the present invention will be described below with reference to the drawings.
第１図は、本発明マグネットに使用する回路単板の一
例であり、その（イ）は表面図、（ロ）は断面図、
（ハ）は裏面図である。第２図は該単板を複数枚積層し
た状態を示す説明図であるり、第３図はこれを固定して
組立てた場合の説明図である。FIG. 1 is an example of a circuit veneer used for the magnet of the present invention, in which (a) is a surface view, (b) is a cross-sectional view,
(C) is a back view. FIG. 2 is an explanatory view showing a state in which a plurality of the veneers are stacked, and FIG. 3 is an explanatory view in a case where they are fixed and assembled.
第１図〜第３図に於いて、酸化物系セラミック超電導
材料層（２）は、単結晶基板（１）上に形成されてい
る。矢印Ａ、Ｂ及びＣは夫々ａ軸、ｂ軸、ｃ軸方向を示
す。同図中（３）は該単板（４）を複数枚積層し固定す
るためのボルト穴であり、（５）は各回路単板を積層し
た際の上側の回路単板との間の電流を流すためのコンタ
クトであり、（６）は同じく下側の回路単板との接続用
コンタクトである。また（７）は中空部を示す。このよ
うな回路単板（４）、（４）′、（４）″・・を第２図
に示す如く複数枚積層し、コンタクト（５）とコンタク
ト（６）を、また同様にコンタクト（５）′、（５）″
・・とコンタクト（６）′、（６）″・・とを接続し、
電流回路を形成する。このような状態で第３図に示す如
くボルト（８）、（８）′・・で各単板（４）、
（４）′・・を固定し組立てる。1 to 3, an oxide-based ceramic superconducting material layer (2) is formed on a single crystal substrate (1). Arrows A, B, and C indicate a-axis, b-axis, and c-axis directions, respectively. In the drawing, (3) is a bolt hole for laminating and fixing a plurality of the veneers (4), and (5) is a current between the upper veneer when the veneers are laminated. And (6) is a contact for connection to the lower circuit single plate. (7) shows a hollow portion. As shown in FIG. 2, a plurality of such circuit veneers (4), (4) ', (4) "... Are laminated, and a contact (5) and a contact (6) are formed. ) ', (5) "
.. and contacts (6) ', (6) "
Form a current circuit. In this state, as shown in FIG. 3, bolts (8), (8) ',.
(4) Fix and assemble.
このような構造に組立てたマグネット全体を適宜な手
段によって、超電導材料層が超電導相となる温度まで冷
却する。通常液体窒素や液体ヘリウムを用いて所定の温
度に冷却する。The entire magnet assembled in such a structure is cooled by a suitable means to a temperature at which the superconducting material layer becomes a superconducting phase. Usually, it is cooled to a predetermined temperature using liquid nitrogen or liquid helium.
本発明に於いて使用される酸化物系セラミック超電導
材料としては、すでに開発されている各種のもの、たと
えばBa−Ca−Sr−Cu−Ｏなどの非希土類元素系超電導材
料、あるいはＹ−Ba−Cu−Ｏ系または該系の各構成元素
の少なくとも一部を適当な遷移金属、特にHo、Er等の希
土類元素で置換した希土類元素系超電導材料がいずれも
使用できる。就中Ｙ−Ba−Cu−Ｏ系のもの、またはその
元素の少なくとも一部を適当な遷移金属、特にHo、Er等
の希土類元素で置換した希土類元素系超電導材料が好ま
しい。Examples of the oxide-based ceramic superconducting material used in the present invention include various materials that have already been developed, for example, non-rare earth element-based superconducting materials such as Ba-Ca-Sr-Cu-O or Y-Ba- Any Cu--O-based or superconducting rare-earth-based material in which at least a part of each constituent element of the system is replaced with a suitable transition metal, particularly a rare-earth element such as Ho or Er, can be used. Among them, a Y-Ba-Cu-O-based material or a rare-earth element-based superconducting material in which at least a part of the element is replaced with a suitable transition metal, particularly a rare-earth element such as Ho or Er, is preferable.
この超電導材料層を形成する手段自体は何等限定され
ず、各種の手段が適宜に採用されるが、その代表例とし
て、スパッタリング法、真空蒸着法、印刷たとえばスク
リーン印刷法等を例示出来る。この層の厚みは通常1mm
以下、好ましくは200μｍ〜500μｍ程度である。また形
成されら超電導層の形状としても第１図はその例示であ
り、電流回路が形成出来る形状である限り特に限定され
るものではない。The means for forming the superconducting material layer itself is not limited at all, and various means are appropriately employed. Typical examples thereof include a sputtering method, a vacuum deposition method, and printing, for example, a screen printing method. The thickness of this layer is usually 1 mm
Hereinafter, it is preferably about 200 μm to 500 μm. FIG. 1 shows an example of the shape of the formed superconducting layer, and the shape is not particularly limited as long as the shape can form a current circuit.
単結晶基板としては、基板が単結晶である限り各種の
ものが広く使用出来るが、好ましい具体例としてSrT
1O3、MgO、YSZ、サファイヤ（Al2O3）等の単結晶を挙げ
ることができる。この単結晶基板はこれを使用するに際
しては、その結晶軸のｃ軸を該基板に対し垂直となるよ
うにして使用することが必要であり、これにより超電導
材料層がａ軸、ｂ軸に配向して所期の目的が達成され
る。該基板の厚みは、通常0.1〜2.0mm、好ましくは0.5
〜1.0mm程度である。As the single crystal substrate, various substrates can be widely used as long as the substrate is a single crystal.
Single crystals such as 1 O 3 , MgO, YSZ, and sapphire (Al 2 O 3 ) can be given. When using this single crystal substrate, it is necessary to use the single crystal substrate so that the c axis of the crystal axis is perpendicular to the substrate, whereby the superconducting material layer is oriented in the a axis and the b axis. As a result, the intended purpose is achieved. The thickness of the substrate is usually 0.1 to 2.0 mm, preferably 0.5
It is about 1.0 mm.
本発明に置いては、回路単板は少なくとも２枚以上、
好ましくは50〜100枚程度積層する。In the present invention, at least two or more circuit veneers,
Preferably, about 50 to 100 sheets are laminated.
本発明は酸化物系セラミック超電導材料の欠点を支障
なくカバーしつつ、その特長たる超電導特性をうまく利
用したものであり、超電導材料の用途の開発に大きく寄
与し得るものである。The present invention makes good use of the superconducting properties that are characteristic of the oxide-based ceramic superconducting material while covering the disadvantages thereof, and can greatly contribute to the development of applications of the superconducting material.
第１図は、本発明マグネットに使用する回路単板の一例
であり、その（イ）は表面図、（ロ）は段面図、（ハ）
は裏面図である。第２図は該単板を複数枚積層した状態
を示す説明図であるり、第３図はこれを固定して組立て
た場合の説明図である。 （１）……単結晶基板 （２）……超電導材料層 （３）……ボルト穴 （４）……回路単板 （５）……コンタクト （６）……コンタクト （７）……中空部 （８）……ボルトFIG. 1 is an example of a circuit veneer used for the magnet of the present invention, in which (a) is a surface view, (b) is a step view, and (c).
Is a rear view. FIG. 2 is an explanatory view showing a state in which a plurality of the veneers are stacked, and FIG. 3 is an explanatory view in a case where they are fixed and assembled. (1) Single crystal substrate (2) Superconducting material layer (3) Bolt hole (4) Circuit single plate (5) Contact (6) Contact (7) Hollow portion (8) Bolt
Claims (2)
厚みを有する単結晶基板上に、酸化物系セラミック超電
導材料から成る回路が形成された回路単板を、複数枚積
層し組立てて電気回路を形成せしめたマグネット。1. A circuit single plate having a circuit made of an oxide-based ceramic superconducting material formed on a single crystal substrate made of a single crystal and having a thickness in the c-axis direction of the single crystal is laminated and assembled. A magnet that forms an electric circuit.
元素系超電導材料または希土類元素系超電導材料である
第（１）請求項に記載のマグネット。2. The magnet according to claim 1, wherein the oxide-based ceramic superconducting material is a non-rare earth element-based superconducting material or a rare earth element-based superconducting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7118888A JP2639958B2 (en) | 1988-03-24 | 1988-03-24 | magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7118888A JP2639958B2 (en) | 1988-03-24 | 1988-03-24 | magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01243402A JPH01243402A (en) | 1989-09-28 |
| JP2639958B2 true JP2639958B2 (en) | 1997-08-13 |
Family
ID=13453434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7118888A Expired - Lifetime JP2639958B2 (en) | 1988-03-24 | 1988-03-24 | magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2639958B2 (en) |
-
1988
- 1988-03-24 JP JP7118888A patent/JP2639958B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01243402A (en) | 1989-09-28 |
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