JPS63269418A - Manufacture of superconductive oxide wire rod - Google Patents

Manufacture of superconductive oxide wire rod

Info

Publication number
JPS63269418A
JPS63269418A JP62102038A JP10203887A JPS63269418A JP S63269418 A JPS63269418 A JP S63269418A JP 62102038 A JP62102038 A JP 62102038A JP 10203887 A JP10203887 A JP 10203887A JP S63269418 A JPS63269418 A JP S63269418A
Authority
JP
Japan
Prior art keywords
organic compound
sol
wire rod
copper
metal
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
JP62102038A
Other languages
Japanese (ja)
Inventor
Tetsuro Takeya
竹矢 哲朗
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co 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 Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Priority to JP62102038A priority Critical patent/JPS63269418A/en
Publication of JPS63269418A publication Critical patent/JPS63269418A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Landscapes

  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

PURPOSE:To easily obtain a wire rod by dissolving a specific mixture in a solvent into sol and extruding and baking in the oxidizing atmosphere. CONSTITUTION:A mixture made of an organic compound of copper, an organic compound of a rare earth metal, and an organic compound of the II group metal in the periodic table is dissolved in a solvent, water is reacted to form it into sol, the sol thus generated is extruded in the oxidizing atmosphere, and the wire-shaped material thus obtained is baked. Alkoxide of such as methoxide, ethoxide is preferably used for the organic compound of copper, lanthanum or yttrium ytterbium is preferably used for the rare earth metal, alkoxide such as methoxide, ethoxide is used for the organic compound. Barium or strontium is preferably used for the II group metal, alkoxide such as methoxide, ethoxide is used for the organic compound. A superconductive oxide wire rod can be thereby produced more easily.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は電線、コイル、電子材料などに用いられる超伝
導性酸化物の線材を製造する方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a superconducting oxide wire used for electric wires, coils, electronic materials, etc.

[従来の技術および発明が解決しようとする問題点] 従来から超伝導性を示す多元金属酸化物として、銅と希
土類金属および周期律表の第II族金属からなるものが
知られている((1) J、G、 Bednortza
ndに、 A、 Muller、 Zeitshrif
t fuer physik 884(1986)  
189.  (2) S、 tlchida、 S、T
anaka et al。
[Prior art and problems to be solved by the invention] As multi-metal oxides exhibiting superconductivity, those consisting of copper, rare earth metals, and group II metals of the periodic table have been known (( 1) J.G.Bednortza
nd, A. Muller, Zeitshrif
t fuel physik 884 (1986)
189. (2) S, tlchida, S, T
Anaka et al.

Japanese Journal of appli
ed physics 26(1987)L、1 (3
) P、 H,Hor、 C,W、Chu at al
、 Physicalreview 1etters 
58 (1987)908)。
Japanese Journal of appli
ed physics 26 (1987) L, 1 (3
) P, H, Hor, C, W, Chu at al.
, Physical review 1etters
58 (1987) 908).

ところが、このような多元金属酸化物はセラミック質で
あるため加工性が悪く、この材料を用いた線材を製造す
ることはきわめて困難であった。
However, since such multi-metal oxides are ceramic, they have poor workability, and it has been extremely difficult to manufacture wire rods using this material.

[問題点を解決するための手段] 本発明者らは、上記多元金属酸化物からなる線材を容易
に製造し得る方法について鋭意研究を重。
[Means for Solving the Problems] The present inventors have conducted intensive research on a method for easily manufacturing a wire made of the above-mentioned multi-metal oxide.

ねた。その結果、本発明の手順にしたがえば、容易に線
材となし得ることを見出し、本発明を完成した。
I fell asleep. As a result, they found that it could be easily made into a wire rod by following the procedure of the present invention, and completed the present invention.

すなわち、本発明は[A]銅の有機化合物、[B]希土
類金属の有機化合物および[01周期律表の第11族金
属の有機化合物の混合物を溶媒に溶解し、水を反応させ
てゾル化し、生成したゾルを酸化性雰囲気において押出
し、得られた線状物を焼成することを特徴とする超伝導
性酸化物線材の製造法を提供するものである。
That is, the present invention involves dissolving a mixture of [A] an organic compound of copper, [B] an organic compound of rare earth metal, and an organic compound of [01 Group 11 metal of the periodic table] in a solvent, and reacting with water to form a sol. The present invention provides a method for producing a superconducting oxide wire, which comprises extruding the generated sol in an oxidizing atmosphere and firing the obtained wire.

本発明では[A]酸成分して銅の有機化合物を用いる。In the present invention, an organic compound of copper is used as the acid component [A].

有機化合物としては特に制限はないが、好適なものとし
てメトキシド、エトキシド、イソプロポキシドなどのア
ルコキシド類、アセトキシドなどのアジロキシド類、ア
セチルアセトナートなどのキレート化合物が用いられる
The organic compound is not particularly limited, but suitable examples include alkoxides such as methoxide, ethoxide, and isopropoxide, azyloxides such as acetoxide, and chelate compounds such as acetylacetonate.

次に[B]酸成分して希土類金属有機、化合物を用いる
。希土類金属としては特に制限はないが、好ましくはラ
ンタン、イツトリウム、イッテルビウムなどが用いられ
、有機化合物として好適なものは、これらのメトキシド
、エトキシド、イソプロポキシドなどのアルコキシド類
、アセトキシドなどのアジロキシド類、アセチルアセト
ナートなどのキレート化合物が用いられる。
Next, a rare earth metal organic compound is used as the [B] acid component. The rare earth metal is not particularly limited, but lanthanum, yttrium, ytterbium, etc. are preferably used, and suitable organic compounds include alkoxides of these metals such as methoxide, ethoxide, and isopropoxide, azyloxides such as acetoxide, Chelate compounds such as acetylacetonate are used.

また[C1成分としては周期律表の第II族金属有機化
合物が用いられる。第II族金属としてl特に制限はな
いが、好ましくはバリウム、ストロンチウム、カルシウ
ムなどが用いられ、有機化合物として好適なものとして
、これらのメトキシド、エトキシド、イソプロポキシド
などのアルコキシド類、アセトキシドなどのアジロキシ
ド類、アセチルアセトナートなどのキレート化合物が用
いられる。
Further, [as the C1 component, a Group II metal organic compound of the periodic table is used. Although there are no particular limitations on the Group II metal, barium, strontium, calcium, etc. are preferably used, and preferred organic compounds include alkoxides of these metals such as methoxide, ethoxide, and isopropoxide, and azyloxides such as acetoxide. Chelate compounds such as acetylacetonate, etc. are used.

本発明の方法はまず上記[AI銅の有機化合物。The method of the present invention begins with the above [AI copper organic compound].

[B]希土類金属有機化合物および[C]周期律表第I
I族の有機化合物の混合物を溶媒に溶解して溶液を得る
。その溶媒として好適なものは、エチルアルコール、イ
ソプロピルアルコール、ブチルアルコール、ジオキサン
、テトラヒドロフラン、ベンゼン、トルエン、キシレン
、エチルベンゼンなどである。
[B] Rare earth metal organic compound and [C] Periodic table I
The mixture of Group I organic compounds is dissolved in a solvent to obtain a solution. Suitable solvents include ethyl alcohol, isopropyl alcohol, butyl alcohol, dioxane, tetrahydrofuran, benzene, toluene, xylene, and ethylbenzene.

次いで、この溶液に水を加えてゾル化させる。Next, water is added to this solution to form a sol.

その水の量は金属元素の合計量に対して0.1〜5当量
であり、好ましくは0.5〜2当量である。水分量が5
当量を越えると溶液はゲル化し成形が困難となる。この
場合、必要に応じて酸化触媒として塩酸や酢酸などを加
えてもよい。
The amount of water is 0.1 to 5 equivalents, preferably 0.5 to 2 equivalents, based on the total amount of metal elements. Water content is 5
If the equivalent amount is exceeded, the solution will gel and become difficult to mold. In this case, hydrochloric acid, acetic acid, or the like may be added as an oxidation catalyst, if necessary.

次いでこのゾル状溶液を用いて酸化性雰囲気において押
出成形を行なう。押出成形は一般の樹脂に招ける押出装
置、ことに乾式紡糸装置を用いるのが好ましい。
Next, extrusion molding is performed using this sol solution in an oxidizing atmosphere. For extrusion molding, it is preferable to use an extrusion device that can be used for general resins, especially a dry spinning device.

次いで押出成形された上記酸化物は酸化性雰囲気の下で
焼成する。酸化性雰囲気は少なくとも5容量%の酸素を
含み、残余は窒素、アルゴンなどの不活性気体からなる
雰囲気が好ましい。焼成温度は700〜1,500℃、
好ましくは800〜1,200℃で行なう、この焼成時
の温度は700℃末溝では有機・物の除去が十分でなく
、また1、500℃を越えるとボイドの生成など欠陥を
生じやすくいずれも好ましくない。
The extruded oxide is then fired in an oxidizing atmosphere. Preferably, the oxidizing atmosphere contains at least 5% by volume of oxygen, with the remainder consisting of an inert gas such as nitrogen or argon. Firing temperature is 700-1,500℃,
Preferably, the firing is carried out at a temperature of 800 to 1,200°C.If the temperature is 700°C, the removal of organic matter will not be sufficient, and if it exceeds 1,500°C, defects such as the formation of voids will easily occur. Undesirable.

このようにして本発明の線材を得ることができる。ここ
で線材の直径はI ILttr〜1 mmが望ましいが
、5〜200μmが好適である。線径が1 pmより小
さいと機械的強度が十分でなく、又反対に1mmより太
いと均質な焼成ができない。
In this way, the wire of the present invention can be obtained. Here, the diameter of the wire is desirably IILttr~1 mm, but preferably 5~200 μm. If the wire diameter is smaller than 1 pm, the mechanical strength will not be sufficient, and if it is thicker than 1 mm, homogeneous firing will not be possible.

なお、本発明においてはこのようにして得られる酸化物
が下記のような組成比が得られるように成分、配合を選
定する必要がある。
In the present invention, it is necessary to select the components and blends so that the oxide thus obtained has the following composition ratio.

(M’+−x・”X) n ’ CuO2−。(M'+-x・"X)n"CuO2-.

式中M1は希土類金属 M2は周期律表の第II族金属
、Xは0.05〜(1,95,nは1〜3.yはθ〜2
を示すものであり、好ましくはXは0.1〜0.9゜n
は2〜3+ yは0〜1である。
In the formula, M1 is a rare earth metal, M2 is a group II metal of the periodic table, X is 0.05-(1,95, n is 1-3, y is θ-2
and preferably X is 0.1 to 0.9゜n
is 2-3+y is 0-1.

このようにして得られた線材は、さらに必要に応じて、
還元性雰囲気において熱処理を施し、あるいはプラズマ
溶射などの手法によって銅などの金属を被覆して用いる
とよい。
The wire rod obtained in this way can be further processed as necessary.
It is preferable to perform heat treatment in a reducing atmosphere or coat with a metal such as copper by a method such as plasma spraying.

[実施例] 次に、本発明を実施例により詳しく説明する。[Example] Next, the present invention will be explained in detail with reference to examples.

実施例1 ソブロポキシド8.2gを溶媒のイソプロピルアルコー
ル500gに溶解し、水2.15gを加えて、相対湿度
40%の空気中20℃において2日間静置した。
Example 1 8.2 g of sobropoxide was dissolved in 500 g of isopropyl alcohol as a solvent, 2.15 g of water was added, and the mixture was left standing at 20° C. for 2 days in air with a relative humidity of 40%.

ここで生成したゾルは粘度20ボイズのものであった。The sol produced here had a viscosity of 20 voids.

このゾルを口径1 mmのノズルから空気中に押出し直
径200μmのゲル繊維を得た。この繊維を空気中で2
4時間乾燥したのち、空気中で900℃にお金 いて焼成した。このようにして得らた金属酸化物繊維は
直径120gmであった。この繊維の電気抵抗値は35
@に以下の温度で零であった。
This sol was extruded into air through a nozzle with a diameter of 1 mm to obtain gel fibers with a diameter of 200 μm. This fiber is placed in the air for 2
After drying for 4 hours, it was fired at 900°C in air. The metal oxide fiber thus obtained had a diameter of 120 gm. The electrical resistance value of this fiber is 35
It was zero at temperatures below @.

実施例2 原料として銅アセチルアセトナート13.0g、  ラ
ンタントリイソプロポキシド18.9gおよびバリウム
ジイソプロポキシド10.2gを用いた事以外は、実施
例1と同様にして直径6昨龜の金属酸化物繊維を得た。
Example 2 A metal oxide with a diameter of 6 mm was prepared in the same manner as in Example 1, except that 13.0 g of copper acetylacetonate, 18.9 g of lanthanum triisopropoxide, and 10.2 g of barium diisopropoxide were used as raw materials. Obtained fibers.

この繊維は30°に以下の温度で電気抵抗値が零となっ
た。
The electrical resistance value of this fiber became zero at a temperature below 30°.

実施例3 原料として銅アセチルアセトナート13.0g 。Example 3 13.0 g of copper acetylacetonate as a raw material.

イツトリウムトリ→ナブロボキシド16.0gおよびバ
リウムジイソプロポキシド10.2gを用いた事以外は
、実施例1と同様にして直径30μmの金属酸化物繊維
を得た。この繊維は27」以下の温度で電気抵抗値が零
となった。
A metal oxide fiber having a diameter of 30 μm was obtained in the same manner as in Example 1, except that 16.0 g of ytrium tri→nabroboxoxide and 10.2 g of barium diisopropoxide were used. The electrical resistance value of this fiber became zero at a temperature of 27" or less.

[発明の効果] 本発明の製造法によれば、超伝導性酸化物の線材を従来
の方法に比べ一層容易に製造することができる。
[Effects of the Invention] According to the manufacturing method of the present invention, a superconducting oxide wire can be manufactured more easily than conventional methods.

Claims (1)

【特許請求の範囲】[Claims] (1)[A]銅の有機化合物、[B]希土類金属の有機
化合物および[C]周期律表の第II族金属の有機化合物
の混合物を溶媒に溶解し、水を反応させてゾル化し、生
成したゾルを酸化性雰囲気において押出し、得られた線
状物を焼成することを特徴とする超伝導性酸化物線材の
製造法。
(1) A mixture of [A] an organic compound of copper, [B] an organic compound of a rare earth metal, and [C] an organic compound of a group II metal of the periodic table is dissolved in a solvent, and the mixture is reacted with water to form a sol, A method for producing a superconducting oxide wire, which comprises extruding the generated sol in an oxidizing atmosphere and firing the obtained linear material.
JP62102038A 1987-04-27 1987-04-27 Manufacture of superconductive oxide wire rod Pending JPS63269418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62102038A JPS63269418A (en) 1987-04-27 1987-04-27 Manufacture of superconductive oxide wire rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62102038A JPS63269418A (en) 1987-04-27 1987-04-27 Manufacture of superconductive oxide wire rod

Publications (1)

Publication Number Publication Date
JPS63269418A true JPS63269418A (en) 1988-11-07

Family

ID=14316601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62102038A Pending JPS63269418A (en) 1987-04-27 1987-04-27 Manufacture of superconductive oxide wire rod

Country Status (1)

Country Link
JP (1) JPS63269418A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63308812A (en) * 1987-06-10 1988-12-16 Asahi Chem Ind Co Ltd Manufacture of superconductive ceramics wire material
JPS63310705A (en) * 1987-05-15 1988-12-19 ピーピージー インダストリーズ,インコーポレーテッド Manufacture of superconductive ceramic by chemical polymerization

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63310705A (en) * 1987-05-15 1988-12-19 ピーピージー インダストリーズ,インコーポレーテッド Manufacture of superconductive ceramic by chemical polymerization
JPS63308812A (en) * 1987-06-10 1988-12-16 Asahi Chem Ind Co Ltd Manufacture of superconductive ceramics wire material

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