JPH01152696A - Superconducting member - Google Patents
Superconducting memberInfo
- Publication number
- JPH01152696A JPH01152696A JP62311718A JP31171887A JPH01152696A JP H01152696 A JPH01152696 A JP H01152696A JP 62311718 A JP62311718 A JP 62311718A JP 31171887 A JP31171887 A JP 31171887A JP H01152696 A JPH01152696 A JP H01152696A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- oxide superconductor
- powder
- superconducting member
- hours
- 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
- 239000002887 superconductor Substances 0.000 claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 4
- 229910052788 barium Inorganic materials 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052709 silver Inorganic materials 0.000 abstract description 7
- 239000004332 silver Substances 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000010622 cold drawing Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 238000009941 weaving Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- -1 oi and cuo Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 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
Landscapes
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
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、酸化物超電導体を使用した超電導部材に関す
る。Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention relates to a superconducting member using an oxide superconductor.
（従来の技術）
近年、Ｂａ−Ｌａ−Ｃｕ−０系の層状ペロブスカイト型
の酸化物が高い臨界湿度を有する可能性のあることが発
表されて以来、各所で酸化物超電導体の研究が行われて
いる（Ｚ、Ｐｈｙｓ、Ｂ Ｃｏｎｄｅｎｓｅｄ Ｍａｔ
ｔｅｒ６４、１８９−１９３（１９８６））。その中で
もＹ−Ｂａ−Ｃｕ−０系で代表される酸素欠陥を有する
欠陥ぺ【コブスカイト型（（Ｌｎｓａ２Ｃｔ１３０７−
５型）（δは酸素欠陥を表し通常１以下、Ｌｎは、Ｙ
、 Ｌａ５ＳＣ，Ｎｄ５ＳＪ Ｅｌ、 Ｇｄ。(Prior Art) In recent years, it has been announced that layered perovskite-type oxides based on Ba-La-Cu-0 may have high critical humidity, and since then, research on oxide superconductors has been carried out in various places. (Z, Phys, B Condensed Mat
ter64, 189-193 (1986)). Among them, the defective type [Covskite type ((Lnsa2Ct1307-
Type 5) (δ represents oxygen defect and is usually 1 or less, Ln is Y
, La5SC, Nd5SJ El, Gd.
ＤＶ、 １１０、Ｅｒ、 Ｔｉ、 Ｗｂおよび［Ｕから
選ばれた少なくとも１種の元素、Ｂａの一部はＳｒ等で
置換可能））の酸化物超電導体は、臨界温度が９０に以
上と液体窒素の沸点以上の高い温度を示すため非常に有
望な材料として注目されティる（Ｐｈｙｓ、 Ｒｅｖ、
Ｌｅｔｔ。The oxide superconductor of DV, 110, Er, Ti, Wb and [at least one element selected from U, a part of Ba can be replaced with Sr, etc.) has a critical temperature of 90°C or higher and is heated in liquid nitrogen. It has attracted attention as a very promising material because it exhibits a high temperature above the boiling point of (Phys, Rev.
Lett.
Ｖｏｌ、５Ｂ Ｎｏ、９，９０８−９１０）。Vol. 5B No. 9, 908-910).
このように、超電導状態を示す臨界温度が液体窒素の沸
点を超える物質が見出されたことによって、比較的安価
にして超電導状態を得ることが可能となり、これにより
各所で超電導現象を利用した各種用途への応用が盛んに
研究されている。The discovery of a substance whose critical temperature for superconducting state exceeds the boiling point of liquid nitrogen has made it possible to obtain superconducting state at a relatively low cost. Applications are being actively researched.
（発明が解決しようとする問題点）
しかしながら、上述した超電導体は、結晶性の酸化物で
あって、焼結体またはこれを粉砕した粉末として得られ
、焼結体のままではほとんど延性を示さず、ざらに通常
のセラミックス部材と同・様に非常に脆く、このため各
種用途に使用づる際、その形状が限定されたり、機械的
強度が低いという難点がある。(Problems to be Solved by the Invention) However, the above-mentioned superconductor is a crystalline oxide and is obtained as a sintered body or a powder obtained by pulverizing the same, and the sintered body exhibits almost no ductility. First, like ordinary ceramic members, they are extremely brittle, and therefore, when used for various purposes, they have the disadvantage of being limited in shape and having low mechanical strength.
例えば、超電導体の磁気遮蔽効果、すなわちマイスナー
効果を利用して磁気シールドを構成する場合、酸化物超
電導体の焼結体を形成する際の成形体形成段階で、必要
とする形状の箱体等を形成することが考えられるが、こ
れでは中純形状に限定されてしまい、複雑なものを形成
する場合には接合等の工数も必要とされ、コストが高く
なるとともにその製造工程も非常に煩雑であり、さらに
このような焼結体で番、１、前述したように非常に脆い
ため、強度補強の手段を講じなければならないという難
点も発生する。For example, when constructing a magnetic shield using the magnetic shielding effect of a superconductor, that is, the Meissner effect, a box of the required shape, etc. However, this would be limited to medium-solid shapes, and if complex shapes were to be formed, additional man-hours such as joining would be required, increasing costs and making the manufacturing process extremely complicated. Furthermore, since such a sintered body is extremely brittle as mentioned above, there is a problem in that it is necessary to take measures to strengthen the strength.
本発明はこのような事情に対処すべくなされたもので、
臨Ｓ’ｉｌ温度の高い酸化物超電導体を使用し、各種形
状に対して適用可能な可撓性を有し、かつ平面構造を有
する超電導部材を提供することを目的とする。The present invention was made to deal with such circumstances,
It is an object of the present invention to provide a superconducting member that uses an oxide superconductor with a high sub-S'il temperature, has flexibility that can be applied to various shapes, and has a planar structure.
［発明の構成１
（問題点を解決するための手段）
本発明の超電導部材は、酸化物超電導体を構成成分とし
て含有する超電導条材を少なくとも使用して織成してな
り、平面構造を有することを特徴としている。[Configuration 1 of the Invention (Means for Solving the Problems) The superconducting member of the present invention is woven using at least a superconducting strip containing an oxide superconductor as a component, and has a planar structure. It is a feature.
酸化物超電導体としては、多数のものが知られているが
、臨界温度の高い、希土類元素含有のペロブスカイト型
の酸化物超電導体の使用が実用的効果が高い。ここでい
う希土類元素を含有しペロブスカイト型構造を有する酸
化物Ｂ！１電導体は、超電導状態を実現できるものであ
ればよく、例えばＬｎＢａ２Ｃｕ３０７−δ系（δは酸
素欠陥を表し通常１以下の数、Ｌｎは、Ｙ、 Ｌａ、
ｓｃ％Ｎｄ５ＳＩＳＥｕＳＧｄ。Although a large number of oxide superconductors are known, the use of perovskite-type oxide superconductors containing rare earth elements, which have a high critical temperature, have a high practical effect. Oxide B containing a rare earth element and having a perovskite structure! 1 The conductor may be one that can realize a superconducting state, for example, LnBa2Cu307-δ system (δ represents an oxygen defect and is usually a number of 1 or less, Ln is Y, La,
sc%Nd5SISEuSGd.
Ｄｙ、 Ｈｏ、 Ｅｒ、 Ｔｍ、Ｗｂ、 Ｌｕ等の希土
類元素から選ばれた少なくとも１！＃の元素、Ｂａの一
部はＣａ、 Ｓｒ等で、Ｃｕの一部はＴｉ、 Ｖ 、
Ｃｒ、 Ｈｎ、 Ｆｅ５Ｃｏ、Ｎｉ５Ｚｎ等で置換可能
）等の酸素欠陥を有する欠陥べ０ブスカイト型、５ｒ−
Ｌａ−Ｃｕ−０系等の層状ペロブスカイト型等の広義に
ペロブスカイト型を有する酸化物が例示される。また、
希土類元素は広義の定義とし、Ｓｃ、 ＶおよびＬａ系
を含むものとする。代表的な系としてＹ−Ｂａ−Ｃｕ−
０系のほかに、ＹをＥｕ、 Ｇｙ、１１０、Ｅｒ、 Ｔ
ｍ、Ｙｂ、 Ｌｕ等の希土類で置換した系、５ｃ−Ｂａ
−Ｃｕ−０系、５ｒ−Ｌａ−Ｃｕ−０系、さらにｓｒを
Ｂａ、 Ｃａで置換した系等が挙げられる。At least one selected from rare earth elements such as Dy, Ho, Er, Tm, Wb, and Lu! Part of the element #, Ba is Ca, Sr, etc., and part of Cu is Ti, V,
Defect base type, 5r-
Examples include oxides having a perovskite type in a broad sense, such as a layered perovskite type such as La-Cu-0 type. Also,
Rare earth elements are defined in a broad sense and include Sc, V, and La elements. A typical system is Y-Ba-Cu-
In addition to the 0 series, Y can be changed to Eu, Gy, 110, Er, T
m, Yb, system substituted with rare earth elements such as Lu, 5c-Ba
Examples include -Cu-0 series, 5r-La-Cu-0 series, and systems in which sr is replaced with Ba or Ca.
このような酸化物超電導体は、例えば以下のようにして
Ｉｔ造する。Such an oxide superconductor is manufactured by, for example, the following method.
まず、Ｖ 、 Ｂａ、 Ｃｕ等のペロブスカイト型酸化
物超電導体の構成元素の単体または化合物を十分混合す
る。この構成元素の化合物としては、Ｙ２Ｏ３、Ｂａｃ
ｏｉ 、ｃｕｏ等の酸化物や炭酸塩を用いることができ
るほか、炭酸塩以外の焼成後に酸化物に転化するさらに
硝酸塩、水酸化物等の化合物を使用することが可能であ
る。さらに、共沈法等で得たシュウ酸塩等の化合物を用
いてもよい。ペロブスカイト型酸化物超電導体を構成す
る元素は、基本的に化学量論比の組成となるように混合
するが、多少製造条件等との関係等でずれていても差支
えない。例えば、Ｙ−Ｂａ−Ｃｕ−０系ではｙ ｉ ｎ
＋ｏｌニ対しＢａ ２ ｍｏｌ、Ｃｕ ３ ｍｏｌが標
準組成であるが、実用上はＹ １ ｍｏｌに対して、Ｂ
ａ ２±０．６ ｍｏｌ、Ｃ１３±０．２ ｍｏ１程度
のずれは問題ない。First, constituent elements or compounds of the perovskite oxide superconductor, such as V, Ba, and Cu, are thoroughly mixed. Compounds of this constituent element include Y2O3, Bac
In addition to oxides and carbonates such as oi and cuo, it is also possible to use compounds other than carbonates, such as nitrates and hydroxides, which are converted into oxides after firing. Furthermore, compounds such as oxalate obtained by a coprecipitation method or the like may be used. The elements constituting the perovskite-type oxide superconductor are basically mixed so as to have a stoichiometric composition, but there may be a slight deviation depending on the manufacturing conditions, etc. For example, in the Y-Ba-Cu-0 system, y i n
The standard composition is Ba 2 mol and Cu 3 mol for +ol, but in practice, B 2 mol and Cu 3 mol for Y 1 mol
A deviation of about 2±0.6 mol and C13±0.2 mol is not a problem.
そして、前述の原料を充分に混合した後、８５０〜９８
０℃の温度で焼成するか、あるいは融点以上に加熱して
溶融成形する。次いで、充分に酸素を供給できるようム
酸素含有雰囲気中で熱処理を行い結晶構造中に酸素を導
入して超電導特性を自重さＶる。この熱処理は、通常２
００℃〜７００℃程度の温度で数時間行う。After thoroughly mixing the above-mentioned raw materials, 850 to 98
It is fired at a temperature of 0°C or melt-molded by heating above the melting point. Next, heat treatment is performed in an oxygen-containing atmosphere to supply sufficient oxygen to introduce oxygen into the crystal structure, thereby reducing the superconducting properties. This heat treatment is usually 2
It is carried out at a temperature of about 00°C to 700°C for several hours.
本発明に使用する超電導条材は、少なくとも上述したよ
うな酸化物超電導体を構成成分として含有するものであ
り、この酸化物超電導体によって超電導状態を実現でき
るものであればどのような構造のものでもよく、例えば
下記のような構造が考えられる。The superconducting strip used in the present invention contains at least the above-mentioned oxide superconductor as a constituent component, and may have any structure as long as it can achieve a superconducting state with this oxide superconductor. For example, the following structure can be considered.
■ 酸化物超電導体からなる素線。■ A strand made of oxide superconductor.
■ 銅や銀のような金属等からなる管体形状の基材中に
酸化物超電導体が充填された長尺形状のもの。■ A long tube-shaped base material made of metal such as copper or silver filled with oxide superconductor.
■ 金属中に酸化物超電導体が例えばフィラメント状等
で埋設された長尺形状のもの。■ An elongated type in which an oxide superconductor is embedded in metal in the form of a filament, for example.
■ 管体または条体形状の金属部材表面に酸化物超電導
体層を有する長尺形状のもの。■ A long tube or strip metal member with an oxide superconductor layer on its surface.
また、これらの条材を複数本束ねマルチ化したもの等も
使用可能である。It is also possible to use a mulch made by bundling a plurality of these strips.
そして、これら超電導条材を少なくとも使用して織成す
ることにより、可撓性をもった平面構造を有する部材が
得られる。この織成後の形状としては、平面状のもの、
円筒状のもの、これらを組合せたもの等、各種の形状の
ものが可能である。By weaving using at least these superconducting strips, a member having a flexible planar structure can be obtained. The shape after this weaving is planar,
Various shapes are possible, such as cylindrical shapes and combinations of these shapes.
この織成方法としては、平織、綾織、朱子織等、各種織
成方法を利用でき、またこれらの方法に限定されず用途
に応じた方法を適用することが可能である。また、織物
の荒さも用途に応じて適宜設定する。As this weaving method, various weaving methods such as plain weaving, twill weaving, and satin weaving can be used, and it is not limited to these methods, and it is possible to apply a method according to the purpose. Further, the roughness of the fabric is also set appropriately depending on the use.
本発明の超電導部材に使用される織成材料としては、上
述したような超電導条材のみに限らず、その用途によっ
ては金属や有機高分子等からなる条材と組合せて使用し
、ざらに可撓性を高めたり、強度を向上させることも可
能である。The woven material used in the superconducting member of the present invention is not limited to the above-mentioned superconducting strips, but depending on the application, it may be used in combination with strips made of metals, organic polymers, etc. It is also possible to increase flexibility and improve strength.
本発明の超？ｊ！導部材の使用用途としては、超電導体
の磁気遮蔽効果を利用して、電磁石のような各種磁界を
発生する装置や逆に磁界からの保護を必要とされる装置
の磁気シールド、電磁波シールド、また水処理等におけ
る磁気分離応用フィルタ等、さらには電力や磁石等の各
種用途への応用が可能である。そして、本発明の超電導
部材は、使用した酸化物超電導体の臨界温度より低い温
度環境で使用に供される。予定される使用温度が酸化物
超電導体の臨界温度より低い場合には、そのまま使用す
ることができ、使用温度が臨界温度より高い場合には、
公知の冷月１手段を用いて臨界温度より低い温度環境に
して使用される。Super invention? j! Conductive materials can be used to utilize the magnetic shielding effect of superconductors to provide magnetic shielding, electromagnetic shielding, and electromagnetic wave shielding for devices that generate various magnetic fields, such as electromagnets, and devices that require protection from magnetic fields. It can be applied to various applications such as magnetic separation applied filters in water treatment, etc., as well as electric power and magnets. The superconducting member of the present invention is used in a temperature environment lower than the critical temperature of the oxide superconductor used. If the expected operating temperature is lower than the critical temperature of the oxide superconductor, it can be used as is; if the intended operating temperature is higher than the critical temperature,
It is used in a temperature environment lower than the critical temperature using a known cold moon method.
（作 用）
本発明の超電導部材においては、焼結体やその粉末では
延性を示さないため各種形状に対する自由度の少ない酸
化物超電導体を、この酸化物超電導体を構成成分として
含有する超電導条材を織成して平面構造を有する部材と
しているため、可撓性をもった部材となり、用途に応じ
た形状に対する適合性が極めて高くなる。また、その織
成方法を適宜設定することによって、強度や織目の荒さ
等の調整も可能である。(Function) In the superconducting member of the present invention, the oxide superconductor, which does not exhibit ductility in its sintered body or its powder, has little flexibility in forming various shapes, and the superconducting strip containing the oxide superconductor as a constituent component. Since the material is woven to form a member with a planar structure, the member is flexible and has extremely high adaptability to the shape depending on the intended use. Further, by appropriately setting the weaving method, it is possible to adjust the strength, roughness of the weave, etc.
（実施例） 次に、本発明の一実施例について説明する。(Example) Next, one embodiment of the present invention will be described.
第１図は本発明の一実施例の超電導部材を示す平面図で
あり、この実施例における超電導部材１は縦糸２および
横糸３を各々超′ＩＸ導条材を使用して平織で織成した
ものである。FIG. 1 is a plan view showing a superconducting member according to an embodiment of the present invention, and the superconducting member 1 in this embodiment has warp threads 2 and weft threads 3 woven in plain weave using super'IX conductive material. It is.
次に、この超電導部材の製造方法について説明する。Next, a method for manufacturing this superconducting member will be explained.
まず、粒径１〜５μｍのＢａＣ０３粉末２ｍｏ１％、Ｙ
２Ｏ３粉末０．５ｍｏ１％、ＣｕＯ粉末３ｍｏ １％を
、充分混合して大気中９００℃で４８時間焼成して反応
させた後、この焼成物をさらに酸素雰囲気中で８００℃
で２４時間焼成して反応さ往、′ｍ索空席にＭ索を尋人
した後、ボールミルを用いて粉砕し、平均粒径２μｍの
ペロブスカイト型の酸化物超電導体粉末を作製した。First, 2 mo1% of BaC03 powder with a particle size of 1 to 5 μm, Y
0.5 mo 1% of 2O3 powder and 3 mo 1% of CuO powder were thoroughly mixed and fired at 900°C in the air for 48 hours to react, and then the fired product was further heated at 800°C in an oxygen atmosphere.
After firing for 24 hours to allow the reaction to proceed, an M wire was inserted into the empty space of the M wire, and then ground using a ball mill to produce a perovskite-type oxide superconductor powder with an average particle size of 2 μm.
次いで、この酸化物超電導体粉末を、外径２０ｍｍ×内
径１８■×長さ１１００Ｉｌｌ１の一端を銀材により封
止した銀笛中に充填し、他端を銀の栓をして通気孔を残
して溶接した後、外径１■まで冷間で線引きし、次いで
酸素雰囲気中において７００℃、５時間の条件で熱処理
を施し、超電導条材を作製した。Next, this oxide superconductor powder was filled into a silver pipe with an outer diameter of 20 mm x an inner diameter of 18 cm x a length of 1100 mm, one end of which was sealed with a silver material, and the other end was plugged with a silver plug, leaving a ventilation hole. After welding, the wire was cold drawn to an outer diameter of 1 cm, and then heat treated in an oxygen atmosphere at 700° C. for 5 hours to produce a superconducting strip.
そして、この超電導条材を縦糸および横糸として用いて
、超電導部材を得た。Then, a superconducting member was obtained using this superconducting strip as warp and weft.
次に、この超電導部材の応用例について説明する。Next, an application example of this superconducting member will be explained.
第２図に示すように、磁場強度２■の常電導コイル４の
周囲に、冷媒として液体窒素を用いた冷線装置５内に設
置した超電導部材１を配設し、漏洩磁束を測定したとこ
ろ、この外側１ｍの所で０、５Ｇであった。As shown in Fig. 2, a superconducting member 1 installed in a cold wire device 5 using liquid nitrogen as a refrigerant was placed around a normal conducting coil 4 with a magnetic field strength of 2■, and the leakage magnetic flux was measured. , it was 0.5G at a place 1m outside of this.
［発明の効果］
以上の実施例からも明らかなように、本発明の超電導体
部材は、酸化物超電導体を構成成分として含有する超電
導条材を少なくとも使用して織成したものであるため、
平面構造を有しかつ可撓性に優れたものとなり、例えば
磁気シールドや磁気分離装置等、各種用途に応用が可能
であり、工業的価値は大である。[Effects of the Invention] As is clear from the above examples, the superconductor member of the present invention is woven using at least a superconducting strip containing an oxide superconductor as a constituent component.
It has a planar structure and excellent flexibility, and can be applied to various uses such as magnetic shielding and magnetic separation devices, and has great industrial value.
第１図は本発明の一実施例の超電導部材を示り平面図、
第２図はその応用例を概略的に示した図である。
１・・・・・・・・・超電導部材
２・・・・・・・・・超電導条材からなる縦糸３・・・
・・・・・・超電導条材からなる横糸出願人
株式会社 東芝
代理人 弁理士 須 山 佐 −
第１図
第２図FIG. 1 is a plan view showing a superconducting member according to an embodiment of the present invention;
FIG. 2 is a diagram schematically showing an example of its application. 1...Superconducting member 2...Warp thread 3 made of superconducting strip material
...Weft consisting of superconducting strips Applicant
Toshiba Corporation Representative Patent Attorney Sasa Suyama - Figure 1 Figure 2
Claims (4)
条材を少なくとも使用して織成してなることを特徴とす
る平面構造を有する超電導部材。(1) A superconducting member having a planar structure, characterized in that it is woven using at least a superconducting strip containing an oxide superconductor as a constituent component.
スカイト型の超電導体である特許請求の範囲第１項記載
の超電導部材。(2) The superconducting member according to claim 1, wherein the oxide superconductor is a perovskite-type superconductor containing a rare earth element.
素から選ばれた少なくとも１種の元素）、ＢａおよびＣ
ｕを原子比で実質的に１：２：３の割合で含有する特許
請求の範囲第１項または第２項記載の超電導部材。(3) The oxide superconductor contains Ln element (Ln is at least one element selected from rare earth elements), Ba and C
The superconducting member according to claim 1 or 2, which contains u in an atomic ratio of substantially 1:2:3.
＿−＿δ（δは酸素欠陥を表す）で表される酸素欠陥型
ペロブスカイト構造を有する特許請求の範囲第３項記載
の超電導部材。(4) The oxide superconductor is LnBa_2Cu_3O_7
The superconducting member according to claim 3, which has an oxygen-deficient perovskite structure represented by _−_δ (δ represents an oxygen defect).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62311718A JPH01152696A (en) | 1987-12-09 | 1987-12-09 | Superconducting member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62311718A JPH01152696A (en) | 1987-12-09 | 1987-12-09 | Superconducting member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01152696A true JPH01152696A (en) | 1989-06-15 |
Family
ID=18020636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62311718A Pending JPH01152696A (en) | 1987-12-09 | 1987-12-09 | Superconducting member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01152696A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388588U (en) * | 1989-12-25 | 1991-09-10 | ||
| WO1997029491A1 (en) * | 1996-02-06 | 1997-08-14 | Siemens Aktiengesellschaft | Conductor arrangement |
| JP2013251527A (en) * | 2012-04-26 | 2013-12-12 | Sumitomo Heavy Ind Ltd | Superconducting magnetic shield device and manufacturing method therefor |
| JP2014220279A (en) * | 2013-05-01 | 2014-11-20 | 住友重機械工業株式会社 | Super conducting magnetic shield device |
-
1987
- 1987-12-09 JP JP62311718A patent/JPH01152696A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388588U (en) * | 1989-12-25 | 1991-09-10 | ||
| WO1997029491A1 (en) * | 1996-02-06 | 1997-08-14 | Siemens Aktiengesellschaft | Conductor arrangement |
| JP2013251527A (en) * | 2012-04-26 | 2013-12-12 | Sumitomo Heavy Ind Ltd | Superconducting magnetic shield device and manufacturing method therefor |
| WO2014136288A1 (en) * | 2013-03-05 | 2014-09-12 | 住友重機械工業株式会社 | Superconductive magnetic shield device and method of producing same |
| JP2014220279A (en) * | 2013-05-01 | 2014-11-20 | 住友重機械工業株式会社 | Super conducting magnetic shield device |
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