JPS63255905A - Superconducting coil - Google Patents

Superconducting coil

Info

Publication number
JPS63255905A
JPS63255905A JP9113387A JP9113387A JPS63255905A JP S63255905 A JPS63255905 A JP S63255905A JP 9113387 A JP9113387 A JP 9113387A JP 9113387 A JP9113387 A JP 9113387A JP S63255905 A JPS63255905 A JP S63255905A
Authority
JP
Japan
Prior art keywords
ceramic
liquid nitrogen
ceramics
superconducting
coil
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
Application number
JP9113387A
Other languages
Japanese (ja)
Inventor
Koichi Oka
岡 皓一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP9113387A priority Critical patent/JPS63255905A/en
Publication of JPS63255905A publication Critical patent/JPS63255905A/en
Pending legal-status Critical Current

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  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

PURPOSE:To enable operation of the title coil in liquid nitrogen by making a material wherein a ceramic superconducting material is provided spirally on a ceramic insulating material and by forming a coil by alternately laminating the clockwise spiral material and the counterclockwise spiral material. CONSTITUTION:A ceramics system superconducting material 2 is provided spirally on a ceramic insulating material 1 in a unit disk and the clockwise spiral unit disk 31 and the counterclockwise spiral unit disk 32 are alternately laminated. Either non-oxide ceramics such as SiC or BN or oxide ceramics such as Al2O3 or ZrO2 can be used for the ceramics insulating material 1 and for the ceramic superconducting material 2, a perovskite compound, e.g., such as Y- Ba-Cu-O, a material which shows superconductivity at a liquid nitrogen temperature, is used. Making a large number of the same disklike materials only is required and these can be made by printing or by molding at a low cost. Further, the superconducting material shows superconductivity at a high temperature so operation can be done by using liquid nitrogen for a refrigerant.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はセラミックス系超電導体を用いた超電導コイル
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a superconducting coil using a ceramic superconductor.

[従来技術とその問題点] 従来、超電導コイルは、合金もしくは化合物いずれも金
属性の線材を巻回してなるものが使用されているが、そ
のコイルは超電導転移温度が23に以下と低く、高価で
取扱いの厄介な液体ヘリウムを用いる必要がある。
[Prior art and its problems] Conventionally, superconducting coils have been made by winding metal wires made of either alloys or compounds, but these coils have a low superconducting transition temperature of 23 or less and are expensive. requires the use of liquid helium, which is difficult to handle.

液体ヘリウムの代りに安価で、取扱いの容易な液体窒素
を用いることができれば重宝な超電導コイルを得ること
ができる。
If liquid nitrogen, which is inexpensive and easy to handle, can be used instead of liquid helium, useful superconducting coils can be obtained.

[発明の目的] 本発明の目的は、液体窒素中で運転することのできる超
電導コイルを提供することにある。
[Object of the Invention] An object of the present invention is to provide a superconducting coil that can be operated in liquid nitrogen.

[発明の概要] 元来セラミックスは可撓性に乏しく、線材化が困難であ
る。そこで本発明では、セラミックス絶縁板上もしくは
セラミックス絶縁板中にセラミックス系超電導体を渦巻
状に配置したものを作り、右渦巻状のものと左渦巻状の
ものを交互に積層させてコイルを形成するようにした。
[Summary of the Invention] Ceramics originally lack flexibility and are difficult to form into wire rods. Therefore, in the present invention, ceramic superconductors are arranged spirally on or in a ceramic insulating plate, and right-handed spirals and left-handed spirals are alternately stacked to form a coil. I did it like that.

尚、セラミックス絶縁板としては、SiC。Incidentally, the ceramic insulating board is SiC.

BNなどの非酸化物系セラミックス、あるいはAlI 
 O、ZrO2などの酸化物系セラミックスのいずれも
用いることができるが、比較的熱伝導性の良いものが好
ましい。
Non-oxide ceramics such as BN, or AlI
Any oxide ceramics such as O or ZrO2 can be used, but those with relatively good thermal conductivity are preferred.

また、セラミックス系超電導体としては、ペロブスカイ
ト化合物、例えばY−Ba−Cu−0など、液体窒素温
度で超電導性を示す物質が用いられる。
Further, as the ceramic superconductor, a substance exhibiting superconductivity at liquid nitrogen temperature is used, such as a perovskite compound such as Y-Ba-Cu-0.

[実施例] 第1図は、セラミック製の絶縁円板1の片面に、セラミ
ックス系超電導体2を渦巻状に配置してなる単位板31
.32を示している。このような単位板31.32は夫
々円板1に所望形状に溝を作り、その溝部に焼成後超電
導体となる組成の原料粉末をつめ込んで焼成することに
より容易に得ることができる。原料粉末の配置は、印刷
のような手段を用いても差支えない。
[Example] FIG. 1 shows a unit plate 31 in which ceramic superconductors 2 are spirally arranged on one side of a ceramic insulating disk 1.
.. 32 is shown. Such unit plates 31 and 32 can be easily obtained by forming grooves in a desired shape in each of the disks 1, filling the grooves with raw material powder having a composition that will become a superconductor after firing, and firing. The raw material powder may be arranged by means such as printing.

このようにして形成された単位板の左渦巻状のもの31
と、右渦巻状のもの32を第2図に示すように、交互に
必要数積み重ねる。かくしてパンケーキ型のコイルが形
成されるが、各単位板31゜32における超電導体2の
片端部は、第2図に示すように、超電導体21が板の全
厚を貫通するように形成し、隣り合うパンケーキの超電
導部分が斤に橋絡するようにされる。
A left-handed spiral unit plate 31 formed in this way
, and the required number of right-handed spirals 32 are stacked alternately as shown in FIG. A pancake-shaped coil is thus formed, and one end of the superconductor 2 in each unit plate 31 and 32 is formed so that the superconductor 21 passes through the entire thickness of the plate, as shown in FIG. , the superconducting parts of adjacent pancakes are made to bridge the loaf.

第4図は、超電導体2の渦巻形状の別の例を示すもので
ある。
FIG. 4 shows another example of the spiral shape of the superconductor 2.

[発明の効果コ 本発明によれば、円−形状のものを多数作ればよいので
、印刷もしくは型成形によって安価に作ることができる
。しかも超電導体が高温で超電導性を示すものであるか
ら、冷媒として液体窒素を用いて稼動させることができ
、実用上極めて重宝である。
[Effects of the Invention] According to the present invention, since a large number of circular shapes can be manufactured, they can be manufactured at low cost by printing or molding. Furthermore, since the superconductor exhibits superconductivity at high temperatures, it can be operated using liquid nitrogen as a coolant, which is extremely useful in practice.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に係るコイルの実施例に用いる単位板の
平面図、第2図はその単位板を交互に積層した状態を示
す縦断面図、第3図は単位板における渦巻形状の別の例
を示す図である。 1:セラミックス絶縁円板、 2:セラミック系超電導体、 31及び32・単位板。
Fig. 1 is a plan view of a unit plate used in an embodiment of the coil according to the present invention, Fig. 2 is a vertical cross-sectional view showing a state in which the unit plates are stacked alternately, and Fig. 3 is a diagram showing different spiral shapes of the unit plates. FIG. 1: Ceramic insulating disk, 2: Ceramic superconductor, 31 and 32, unit plate.

Claims (1)

【特許請求の範囲】[Claims]  セラミックス絶縁体にセラミックス系超電導体を渦巻
状に配置した平板のもので、右渦巻状のものと左渦巻状
のものとを交互に積層してなることを特徴とする超電導
コイル
A superconducting coil that is a flat plate in which ceramic superconductors are arranged in a spiral shape on a ceramic insulator, and is characterized in that right-handed spirals and left-handed spirals are laminated alternately.
JP9113387A 1987-04-14 1987-04-14 Superconducting coil Pending JPS63255905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9113387A JPS63255905A (en) 1987-04-14 1987-04-14 Superconducting coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9113387A JPS63255905A (en) 1987-04-14 1987-04-14 Superconducting coil

Publications (1)

Publication Number Publication Date
JPS63255905A true JPS63255905A (en) 1988-10-24

Family

ID=14018035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9113387A Pending JPS63255905A (en) 1987-04-14 1987-04-14 Superconducting coil

Country Status (1)

Country Link
JP (1) JPS63255905A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS641208A (en) * 1987-06-23 1989-01-05 Agency Of Ind Science & Technol Superconductor magnet
JPS6455807A (en) * 1987-08-26 1989-03-02 Sumitomo Electric Industries Small-sized superconducting solenoid and manufacture thereof
CN102360684A (en) * 2011-07-08 2012-02-22 南京航空航天大学 Magnet exciting coil structure for high-temperature magnetic suspension bearing and production method for magnet exciting coil structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS641208A (en) * 1987-06-23 1989-01-05 Agency Of Ind Science & Technol Superconductor magnet
JPS6455807A (en) * 1987-08-26 1989-03-02 Sumitomo Electric Industries Small-sized superconducting solenoid and manufacture thereof
CN102360684A (en) * 2011-07-08 2012-02-22 南京航空航天大学 Magnet exciting coil structure for high-temperature magnetic suspension bearing and production method for magnet exciting coil structure

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