JPS63225410A - Compound superconductive wire and its manufacture - Google Patents
Compound superconductive wire and its manufactureInfo
- Publication number
- JPS63225410A JPS63225410A JP62056854A JP5685487A JPS63225410A JP S63225410 A JPS63225410 A JP S63225410A JP 62056854 A JP62056854 A JP 62056854A JP 5685487 A JP5685487 A JP 5685487A JP S63225410 A JPS63225410 A JP S63225410A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- wire
- oxide superconductor
- superconductor
- superconducting wire
- 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
- 150000001875 compounds Chemical class 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002887 superconductor Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910002480 Cu-O Inorganic materials 0.000 claims abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052802 copper Inorganic materials 0.000 abstract description 10
- 239000010949 copper Substances 0.000 abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 238000005266 casting Methods 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000005491 wire drawing Methods 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
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、化合物超電導線およびその製造方法に係り、
特に、臨界温度（Ｔｃ）を大幅に向上させることができ
るようにした層状ペロブスカイト型等の酸化物超電体を
用いた化合物超電導の製造方法に関する。[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention relates to a compound superconducting wire and a method for manufacturing the same,
In particular, the present invention relates to a method for manufacturing compound superconductivity using an oxide superconductor such as a layered perovskite type, which allows the critical temperature (Tc) to be significantly improved.
（従来の技術）
化合物超電導体を結晶構造で分類すると、Ａ１５型、Ｂ
ｌ型、シェプレル型、ラーヴエス型、ペロブスカイト型
１層状ペロブスカイト型などに分類される。このうち層
状ペロブスカイト型化合物超電導体等の酸化物超電体は
、他の化合物超電導体に比べて臨界温度（Ｔｅ ）が３
０に以上と非常に高いものが多い、しかしながらこのよ
うな酸化物超電導体は従来焼結によるベレット状のもの
しかできなかつたため、超電導線材を巻回してなる超電
導マグネットへの使用は困難視されていた。(Prior art) Compound superconductors are classified into A15 type and B type by crystal structure.
It is classified into l-type, Sheprell type, Laves type, perovskite type, single-layer perovskite type, etc. Among these, oxide superconductors such as layered perovskite compound superconductors have a critical temperature (Te) of 3
However, since such oxide superconductors could only be produced in the form of pellets by sintering, it was considered difficult to use them in superconducting magnets made by winding superconducting wire. Ta.
このように層状ペロブスカイト型化合物超電導体等の酸
化物超電導体は、 Ｔｃが高いという利点がある反面線
材に加工することができなかったために超電導マグネッ
トなどへの応用性に欠ける問題があった。In this way, oxide superconductors such as layered perovskite-type compound superconductors have the advantage of having a high Tc, but on the other hand, they cannot be processed into wire rods, so they lack applicability to superconducting magnets and the like.
（発明が解決しようとする問題点）
上述の如く、層状ペロブスカイト型化合物超電導体等の
酸化物超電導体は、線材に加工ができない故に超電導マ
グネットに使用することはできなかった。(Problems to be Solved by the Invention) As mentioned above, oxide superconductors such as layered perovskite compound superconductors cannot be used in superconducting magnets because they cannot be processed into wire rods.
そこで本発明は、良導体マトリックス中に層状ベロプス
カイ）！構造等の酸化物超電導化合物粉末体が埋設され
た複合化合物超電導線およびその製造方法を提供するこ
とを目的にしている。Therefore, the present invention has developed a layered velop sky in a good conductor matrix! The object of the present invention is to provide a composite compound superconducting wire in which an oxide superconducting compound powder such as a structure is embedded, and a method for manufacturing the same.
（問題点を解決するための手段）
本発明は、 Ｌａ −Ｍ−Ｃｕ−０で表される層状ペロ
ブスカイト型化合物超電導体等の酸化物超電導体の粉末
体１が銅またはアルミニウムなどの低抵抗常電導金属２
中に埋設された複合体からなることを特徴とする複合化
合物超電導線３である（第１図）。この超電導線は前記
化合物超電導体の粉末体をつくる第一の工程、この粉末
体を銅またはアルミニウムなどの低抵抗常電導金属の中
に鋳込みインゴットをつくる第二の工程、このインゴッ
トを押出、圧延、スウエージング、線引などの減面加工
によυ線またはテープ状にする第三の工程を具備してな
ることを特徴とする複合化合物超電導線の製造方法によ
シ提供される。ここで酸化物超電導体としては、Ｌａ
−Ｍ−Ｃｕ−０系で表される層状けられる。(Means for Solving the Problems) The present invention provides that the powder 1 of an oxide superconductor such as a layered perovskite compound superconductor represented by La-M-Cu-0 is made of a low-resistance normal material such as copper or aluminum. conductive metal 2
This is a composite compound superconducting wire 3 characterized in that it consists of a composite buried therein (FIG. 1). This superconducting wire is manufactured through the first step of making a powder of the compound superconductor, the second step of casting this powder into a low-resistance normal conducting metal such as copper or aluminum, and making an ingot, and then extruding and rolling this ingot. A method for manufacturing a composite compound superconducting wire is provided, which comprises a third step of forming into a υ wire or tape by surface reduction processing such as swaging, wire drawing, etc. Here, as the oxide superconductor, La
- A layered structure represented by the M-Cu-0 system.
（作 用）
上記製造方法を用いることによって、銅またはアルミニ
ウムなどの低抵抗金属である良導体中マトリックス中に
層状ペロブスカイト型化合物超電導体等の酸化物超電導
体の粉末体を埋設した超電導線をつくることができた。(Function) By using the above manufacturing method, a superconducting wire is produced in which powder of an oxide superconductor such as a layered perovskite compound superconductor is embedded in a matrix of a good conductor made of a low resistance metal such as copper or aluminum. was completed.
これにより、そのままでは線状にできない層状ペロブス
カイト型化合物粉末体等の酸化物超電導体を鋼またはア
ルミニウムなどの良導体でかつ展伸性に富む材料中に鋳
込み、このインゴットを減面加工し線材化することによ
って、上記化合物粉末体が線材内で長手方向に整列する
。つまり、従来ではベレット状の化合物焼結体でしか製
造できなかった超電導化合物を線またはテープ状にした
均質で良好な複合化合物超電導線を得ることが可能とな
る。また、この複合化合物超電導線を構成するマトリッ
クスが銅やアルミニウムの良導体であるため、クウェン
チによって超電導状態が破れるようなことがあってもこ
の良導体マトリックスに電流がバイパスして流れ複合超
電導線の焼損を防ぐ効果もある。In this way, an oxide superconductor such as a layered perovskite compound powder that cannot be made into a wire as it is is cast into a highly conductive and malleable material such as steel or aluminum, and this ingot is processed to reduce the area and made into a wire. As a result, the compound powder is aligned in the longitudinal direction within the wire. In other words, it becomes possible to obtain a homogeneous and good composite compound superconducting wire made by making a wire or tape shape from a superconducting compound, which could conventionally only be produced in a pellet-like compound sintered body. In addition, since the matrix that makes up this composite compound superconducting wire is a good conductor such as copper or aluminum, even if the superconducting state is broken by quenching, the current will bypass and flow through this good conductor matrix, preventing burnout of the composite superconducting wire. It also has a preventive effect.
（実施例） 以下１本発明の詳細を図面に示す一実施例を説明する。(Example) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.
まず、焼結法などによって得られたＬａ−８ｒ−Ｃｕ−
０で表される層状ベロブスカイ）！化合物粉末体ｌと銅
２をそれぞれ体積比で３５：６５の割合になるようにひ
よう量し、炉の中に入れた。これを高周波炉を用いて約
１１００℃で溶解攪はんした。First, La-8r-Cu- obtained by sintering method etc.
Layered Belovsky represented by 0)! Compound powder 1 and copper 2 were weighed at a volume ratio of 35:65, respectively, and placed in a furnace. This was melted and stirred at about 1100° C. using a high frequency furnace.
上記粉末体が鋼中に均一に分布するように２回の溶解を
行い、直径５ｃＷＬ、長さ２０（ｍのインゴットにした
。これを静水圧押出、スウエージングなどの減面加工に
よって、線径２１１１ＩＩの層状ペロブスカイト型化合
物粉末体１が銅マトリツクス２中に存在する長尺の複合
化合物超電導線３が得られた。このようにして製造され
た超電導線を用いて実測した結果、Ｔｃが３８に、臨界
電流がＩＩＡの良好な超電導特性を示すことが確認され
た。The above powder was melted twice so that it was evenly distributed in the steel, and an ingot with a diameter of 5 cWL and a length of 20 (m) was made. A long composite compound superconducting wire 3 in which a layered perovskite compound powder 1 of 2111II exists in a copper matrix 2 was obtained.As a result of actual measurement using the superconducting wire manufactured in this way, Tc was 38. It was confirmed that the critical current shows good superconducting properties of IIA.
前記組成式中のＭがＢ＆の場合も同様に加工でき、Ｔｃ
が３２に１臨界電流が９Ａの良好な超電導特性を確認し
た。If M in the above compositional formula is B&, it can be processed in the same way, and Tc
Good superconducting properties with a critical current of 9A in 32 seconds were confirmed.
本製造工程中に焼鈍熱処理を加えると加工性が向上した
。Adding annealing heat treatment during this manufacturing process improved workability.
マトリックス材を銅の代わりにアルミニウムにしても同
様の超電導線が得られた。Similar superconducting wires were obtained by using aluminum instead of copper as the matrix material.
これらの複合超電導線では臨界電流を少し越えても焼損
することなく電流は安定して流れた。In these composite superconducting wires, current flowed stably without burning out even when the critical current was slightly exceeded.
以上述べたように、本発明によれば、今まで困難視され
ていた超電導マグネットへ応用可能な層状ペロブスカイ
ト型の化合物超電導線の製造方法を提供できる。As described above, according to the present invention, it is possible to provide a method for manufacturing a layered perovskite compound superconducting wire that can be applied to superconducting magnets, which has been considered difficult until now.
第１図は本発明の一実施例の断面図を示す。 １・・・超電導化合物粉末体 ２・・・銅マトリックス ３・・・化合物超電導線。 代理人 弁理士 則 近 憲 佑 同 竹 花 喜久男 第１図 FIG. 1 shows a cross-sectional view of one embodiment of the invention. 1...Superconducting compound powder 2...Copper matrix 3... Compound superconducting wire. Agent: Patent Attorney Noriyuki Chika Same Bamboo Flower Kikuo Figure 1
Claims (4)
属中に埋設された複合体からなることを特徴とする化合
物超電導線。(1) A compound superconducting wire characterized in that it consists of a composite body in which a powder made of an oxide superconductor is embedded in a low-resistance normal-conducting metal.
はＢａ、Ｓｒ、Ｃａ）の層状ペロブスカイト型酸化物で
あることを特徴とする特許請求の範囲第１項記載の化合
物超電導線。(2) The oxide superconductor is based on La-M-Cu-O (M
The compound superconducting wire according to claim 1, wherein is a layered perovskite-type oxide of Ba, Sr, Ca).
の粉末体を低抵抗常電導金属の中に鋳込みインゴットを
つくる第二の工程と、このインゴットを減面加工により
線またはテープ状にする第三の工程を具備してなること
を特徴とする化合物超電導線の製造方法。(3) The first step is to create a powder of oxide superconductor, the second step is to cast this powder into a low-resistance normal conductive metal to create an ingot, and the ingot is shaped into a wire or tape by surface reduction processing. A method for manufacturing a compound superconducting wire, comprising a third step of:
はＢａ、Ｓｒ、Ｃａ）の層状ペロブスカイト型酸化物で
あることを特徴とする特許請求の範囲第３項記載の化合
物超電導線の製造方法。(4) The oxide superconductor is based on La-M-Cu-O (M
4. The method for manufacturing a compound superconducting wire according to claim 3, wherein is a layered perovskite-type oxide of Ba, Sr, Ca).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62056854A JPS63225410A (en) | 1987-03-13 | 1987-03-13 | Compound superconductive wire and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62056854A JPS63225410A (en) | 1987-03-13 | 1987-03-13 | Compound superconductive wire and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63225410A true JPS63225410A (en) | 1988-09-20 |
Family
ID=13038999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62056854A Pending JPS63225410A (en) | 1987-03-13 | 1987-03-13 | Compound superconductive wire and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63225410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63238228A (en) * | 1987-03-26 | 1988-10-04 | Asahi Chem Ind Co Ltd | Production of metallic ceramics composite material |
| JPS6421034A (en) * | 1987-03-31 | 1989-01-24 | Sumitomo Electric Industries | Superconductive composite body |
-
1987
- 1987-03-13 JP JP62056854A patent/JPS63225410A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63238228A (en) * | 1987-03-26 | 1988-10-04 | Asahi Chem Ind Co Ltd | Production of metallic ceramics composite material |
| JPS6421034A (en) * | 1987-03-31 | 1989-01-24 | Sumitomo Electric Industries | Superconductive composite body |
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