JP2585579B2 - Superconductor manufacturing method - Google Patents
Superconductor manufacturing methodInfo
- Publication number
- JP2585579B2 JP2585579B2 JP62080919A JP8091987A JP2585579B2 JP 2585579 B2 JP2585579 B2 JP 2585579B2 JP 62080919 A JP62080919 A JP 62080919A JP 8091987 A JP8091987 A JP 8091987A JP 2585579 B2 JP2585579 B2 JP 2585579B2
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- plate
- superconductor
- copper
- superconducting material
- 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
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)
- Laminated Bodies (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は77゜ｋ以上の高い臨界温度をもつ非金属系超
電導材を用いた良好な電磁波反射材に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a good electromagnetic wave reflecting material using a nonmetallic superconducting material having a high critical temperature of 77 ° K or more.
銅の酸化物にLa、Ba、Sr、Ｙ等を加えたK2N,F4型酸化
物は従来のNb3Ge等の金属系超電導材に比べ、きわめて
高温の臨界温度をもつことが知られている。この系の超
電導材については例えば“バリティ",Vo12（1987年）の
第61頁から第65頁において解説されている。また、酸化
物超電導体の粉末を基板上に塗布する超伝導性複合材の
作製方法については、特願昭62−72787号に記載されて
いる。La in the oxide of copper, Ba, Sr, K 2 plus Y like N, F 4 type oxide than metal-based superconducting materials, such as a conventional Nb 3 Ge, have a very high temperature of the critical temperature known Have been. The superconducting material of this system is described, for example, in "Varity", Vo12 (1987), pp. 61-65. A method for producing a superconductive composite material in which an oxide superconductor powder is applied on a substrate is described in Japanese Patent Application No. 62-72787.
しかし、これらの非金属系超電導材はNb3Ge等の金属
系超電導材に比べ展延性に乏しく、板材等に加工するこ
とが困難であった。However, these non-metallic superconducting materials are less ductile than metal-based superconducting materials such as Nb 3 Ge, and have been difficult to process into plate materials and the like.
本発明の目的はこの非金属系超電導材を用いて大面積
の超電導板もしくは超電導テープを作製する技術を提供
するものである。An object of the present invention is to provide a technique for producing a large-area superconducting plate or superconducting tape using this nonmetallic superconducting material.
上記目的は粉末状に形成した非金属系超電導材を有機
のバインダーによって板もしくはテープ、フィルム上に
塗布し、上記基体または上記塗布された非金属系超電導
材の少なくとも一方を絶縁性の断熱材で被覆するという
手段によって達成される。The above-mentioned object is to apply a non-metallic superconducting material formed in a powder form to a plate or a tape with an organic binder on a film, and to apply at least one of the base or the applied non-metallic superconducting material with an insulating heat insulating material. This is achieved by means of coating.
非金属系超電導材の微粒子は有機のバインダー中に分
散しており、変形によって互いにその位置を変えるので
粒子の結晶が破壊されることはない。このため、自由な
形状の基材に塗布が可能で加工がきわめて容易になる。The fine particles of the nonmetallic superconducting material are dispersed in an organic binder, and their positions are changed by deformation, so that the crystal of the particles is not broken. For this reason, it can be applied to a substrate having a free shape and processing becomes extremely easy.
以下実施例により本発明を説明する。 Hereinafter, the present invention will be described with reference to examples.
（実施例１） 第１図は本発明の実施例１の超電導板の断面構造であ
る。酸化銅にBa,Yを混合して約1000℃で熱処理を行な
い、高温超電導材として知られる（Ba0.6Ｙ0.4）CuO2を
合成した後、これを粉砕して粉末状にする。この粉末を
エポキシ系樹脂からなるバインダー中に分散させエポキ
シー超電導体複合材１を作製する。次いで、このエポキ
シー超電導体複合材１を銅板２上に塗布し約60℃の雰囲
気で硬化せしめる。この板材は約90゜Ｋで超電導を示
し、かつ強度が強くて、加工性も良好であり、産業上有
効な特性をもつ。基板としては銅板に限らず、ガラス
板、アセテート系等の有機フィルム、テープ等も用いる
ことができる。銅板を用いたときは冷却が容易になる利
点があり、有機フィルム、テープの場合は可撓性に富む
という利点がある。またガラス板は極めて平坦な面が得
られるので、電磁波の平面ミラーとして有効である。ま
たバインダーの凝固前に磁場印加等の方法で粒子の結晶
方位を揃え、臨界電流等の特性を改善することもでき
る。(Example 1) Fig. 1 is a cross-sectional structure of a superconducting plate according to Example 1 of the present invention. Ba and Y are mixed with copper oxide and heat-treated at about 1000 ° C. to synthesize (Ba 0.6 Y 0.4 ) CuO 2 known as a high-temperature superconducting material, and then pulverized into a powder. This powder is dispersed in a binder made of an epoxy resin to produce an epoxy-superconductor composite material 1. Next, this epoxy-superconductor composite material 1 is applied on a copper plate 2 and cured in an atmosphere of about 60 ° C. This plate shows superconductivity at about 90 ° K, has high strength, good workability, and has industrially effective characteristics. The substrate is not limited to a copper plate, but may be a glass plate, an organic film such as acetate, a tape, or the like. When a copper plate is used, there is an advantage that cooling is easy, and in the case of an organic film or tape, there is an advantage that it is rich in flexibility. Further, since the glass plate has an extremely flat surface, it is effective as a plane mirror for electromagnetic waves. Before solidifying the binder, the crystal orientation of the particles can be made uniform by a method such as application of a magnetic field to improve characteristics such as critical current.
（実施例２） 第２図は本発明の実施例２の超電導板の断面構造図で
ある。実施例１で示した方法で銅板２の上にエポキシー
（Ba0.6Ｙ0.4）CuO2複合材１を塗布する。この塗布面上
に厚さ1cmのポリスチレンを断熱材３として貼りつけ
る。また基材である銅板２に銅パイプ４を溶接し、該銅
パイプに液体窒素を流入させて系の冷却を行なう。銅パ
イプ４も断熱材３で被覆した。超電導状態を示す低温に
おいて、上記板を空気中に放置しても表面断熱材のため
に表面が結氷することがなく、空気中において良好な電
磁波反射板として用いることができる。表面被覆はポリ
スチレンに限らずテフロン、ガラスラール等も用いるこ
とができる。また、使用する温度によってはさらに薄い
膜も使用することができる。(Example 2) Fig. 2 is a sectional structural view of a superconducting plate according to Example 2 of the present invention. The epoxy (Ba 0.6 Y 0.4 ) CuO 2 composite material 1 is applied on the copper plate 2 by the method described in the first embodiment. Polystyrene having a thickness of 1 cm is attached as a heat insulating material 3 on this application surface. Further, a copper pipe 4 is welded to a copper plate 2 as a base material, and liquid nitrogen is caused to flow into the copper pipe to cool the system. The copper pipe 4 was also covered with the heat insulating material 3. At a low temperature that indicates a superconducting state, even if the above-mentioned plate is left in the air, the surface does not freeze due to the surface heat insulating material, and it can be used as a good electromagnetic wave reflection plate in the air. The surface coating is not limited to polystyrene, and Teflon, glass lar and the like can be used. Further, a thinner film can be used depending on the temperature used.
（実施例３） 実施例２で述べた表面被覆を施した超電導板を用い
て、パラポラアンテナの反射板を作製した。超電導材は
完全反磁性をもち電磁場を良く反射する。このため従来
の常電導金属の反射板を用いた場合に比べ、高性能のア
ンテナを作製することができた。上記実施例ではアンテ
ナに超電導電導電磁波反射板を用いたが、他に導波管、
電子レンジ、電波暗室等に本発明による超電導板を用い
ることができる。(Example 3) A reflector of a parapolar antenna was manufactured using the superconducting plate provided with the surface coating described in Example 2. Superconducting materials have perfect diamagnetism and reflect electromagnetic fields well. For this reason, a high-performance antenna was able to be manufactured as compared with the case where a conventional normal conductive metal reflector was used. In the above embodiment, a superconducting conductive magnetic wave reflecting plate was used for the antenna, but other waveguides,
The superconducting plate according to the present invention can be used in a microwave oven, an anechoic chamber, and the like.
（実施例４） 実施例２で述べた超電導板を用いて磁気シールドルー
ムを作製した。約30cm角の立方体の箱を作製し、箱の一
方から徐々に超電導状態に遷移するように冷却したとこ
ろ、箱の内部での磁界をほぼ零にすることができた。本
発明による超電導板によるシールド・ルームは人体磁場
計測のための医療用シールド・ルーム、磁気ディスク等
の記録材の保管箱等に有効である。Example 4 A magnetically shielded room was manufactured using the superconducting plate described in Example 2. A cubic box of about 30 cm square was fabricated and cooled so as to gradually transition from one side to the superconducting state. As a result, the magnetic field inside the box could be reduced to almost zero. The shield room using the superconducting plate according to the present invention is effective for a medical shield room for measuring a human body magnetic field, a storage box for recording materials such as magnetic disks, and the like.
以上本発明によれば加工の困難な非金属超電導材を用
いて、板、フィルム、テープ等を形成することができ、
産業上きわめて有効である。According to the present invention, using a non-metallic superconducting material that is difficult to process, a plate, a film, a tape, and the like can be formed,
Very effective in industry.
第１図は本発明の実施例１の超電導板の断面構造図、第
２図は本発明の実施例２の超電導板の断面構造図であ
る。 符号の説明 １……エポキシー超電導体複合材、２……銅板、３……
断熱材、４……冷却用パイプFIG. 1 is a sectional structural view of a superconducting plate of Embodiment 1 of the present invention, and FIG. 2 is a sectional structural view of a superconducting plate of Embodiment 2 of the present invention. DESCRIPTION OF SYMBOLS 1 ... Epoxy-superconductor composite, 2 ... Copper plate, 3 ...
Insulation material, 4 ... Cooling pipe
Claims (3)
選ばれた元素を加えてなるK2NiF4型の結晶構造を有する
粉末状の超電導材を準備する工程と、上記超電導材を基
体表面に塗布する工程と、上記塗布された超電導材を断
熱材で被覆する工程とを有することを特徴とする超電導
体の製造方法。1. A step of preparing a powdery superconducting material having a K 2 NiF 4 type crystal structure obtained by adding an element selected from the group consisting of La, Ba, Sr, and Y to a copper oxide; A method of manufacturing a superconductor, comprising: a step of applying the superconducting material to a substrate surface; and a step of covering the applied superconducting material with a heat insulating material.
ム及びテープの群から選ばれることを特徴とする特許請
求の範囲第１項記載の超電導体の製造方法。2. The method according to claim 1, wherein said substrate is selected from the group consisting of a copper plate, a glass plate, an organic film, and a tape.
させて上記基体表面に塗布することを特徴とする特許請
求の範囲第１項又は第２項に記載の超電導体の製造方
法。3. The method for producing a superconductor according to claim 1, wherein said superconductor is dispersed in an organic binder and applied to said substrate surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62080919A JP2585579B2 (en) | 1987-04-03 | 1987-04-03 | Superconductor manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62080919A JP2585579B2 (en) | 1987-04-03 | 1987-04-03 | Superconductor manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63248016A JPS63248016A (en) | 1988-10-14 |
| JP2585579B2 true JP2585579B2 (en) | 1997-02-26 |
Family
ID=13731819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62080919A Expired - Lifetime JP2585579B2 (en) | 1987-04-03 | 1987-04-03 | Superconductor manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2585579B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02111539A (en) * | 1988-10-20 | 1990-04-24 | Tomoegawa Paper Co Ltd | Superconductive sheet and its manufacture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61214305A (en) * | 1985-03-19 | 1986-09-24 | 工業技術院長 | Superconducting composite material |
| JPS63248183A (en) * | 1987-04-02 | 1988-10-14 | Sumitomo Electric Ind Ltd | Electromagnetic-wave sheilding material |
-
1987
- 1987-04-03 JP JP62080919A patent/JP2585579B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63248016A (en) | 1988-10-14 |
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