JPH01100809A - Oxide superconductor - Google Patents
Oxide superconductorInfo
- Publication number
- JPH01100809A JPH01100809A JP62256181A JP25618187A JPH01100809A JP H01100809 A JPH01100809 A JP H01100809A JP 62256181 A JP62256181 A JP 62256181A JP 25618187 A JP25618187 A JP 25618187A JP H01100809 A JPH01100809 A JP H01100809A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting material
- oxide
- superconductor
- ceramic enclosure
- heat
- 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 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 abstract description 8
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- BPPVUXSMLBXYGG-UHFFFAOYSA-N 4-[3-(4,5-dihydro-1,2-oxazol-3-yl)-2-methyl-4-methylsulfonylbenzoyl]-2-methyl-1h-pyrazol-3-one Chemical compound CC1=C(C(=O)C=2C(N(C)NC=2)=O)C=CC(S(C)(=O)=O)=C1C1=NOCC1 BPPVUXSMLBXYGG-UHFFFAOYSA-N 0.000 description 1
- 241001091551 Clio Species 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 238000004804 winding 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】 〔産業上の利用分野〕 この発明は酸化物系超電導体に関するものである。[Detailed description of the invention] [Industrial application field] This invention relates to oxide-based superconductors.
〔従来の技術１
近年、以前より知られていた合金系超電導体よりも高温
、即ち実用的には液体窒素温度（７７Ｋ）以上で超電導
性を示す酸化物系超電導体の発見が相次いでいる。この
種の超電導体は、例えば雑誌Ｐｈｙｓ、Ｒｅｖ、Ｌｅｔ
ｔ、、５８（１９８７）、９０Ｂ頁〜９１０頁に記載さ
れている様に、ＢａＣ０ａ 、Ｙ２Ｏ３、ＣｕＯの粉末
を任意の比率で混合、プレス戊形後、熱処理して作製さ
れる。また、この超電導体を線材化する場合は、例えば
雑誌「新超電導体」（出版マグロウヒル社）Ｋ記載され
ている様に、Ａｇ ｐ Ｃｕ ｓ ｋｌ等の金第２図は
上記従来の酸化物系超電導体を示す断面図であり、（１
）は金属パイプ、（２）はこの金属パイプ（１）中に充
填された酸化物超電導材である。[Prior Art 1] In recent years, oxide-based superconductors have been discovered one after another that exhibit superconductivity at higher temperatures than previously known alloy-based superconductors, that is, practically, at liquid nitrogen temperatures (77 K) or higher. This type of superconductor has been described, for example, in the magazines Phys, Rev, Let
t, 58 (1987), pp. 90B to 910, it is produced by mixing powders of BaC0a, Y2O3, and CuO in an arbitrary ratio, press-shaping, and then heat-treating. In addition, when this superconductor is made into a wire, for example, as described in the magazine "New Superconductor" (Published by McGraw-Hill Publishing Co.) It is a cross-sectional view showing a superconductor, (1
) is a metal pipe, and (2) is an oxide superconducting material filled in this metal pipe (1).
しかし、この様な方法で作成された従来の酸化物系超電
導体の線材は裸線であるので、コイルの巻線、電線、配
線等に使用する際、表面に絶縁加工を行う必要があるな
どの問題点があった。However, since conventional oxide superconductor wires created by this method are bare wires, it is necessary to insulate the surface when using them for coil windings, electric wires, wiring, etc. There was a problem.
この発明は上記の様な問題点を解決する起め罠なされた
もので、使用に際して絶縁加工の必要がない酸化物系超
電導体を得ることを目的とする。The present invention has been made to solve the above-mentioned problems, and its purpose is to obtain an oxide-based superconductor that does not require insulation processing during use.
この発明に係る酸化物系超電導体は、酸化物超電導材を
粉砕し、耐熱性セラミックの包囲体に充填し、熱処理を
施して一体化したものである。The oxide superconductor according to the present invention is obtained by pulverizing an oxide superconducting material, filling it in a heat-resistant ceramic enclosure, and heat-treating it to integrate the oxide superconductor.
この発明における耐熱性セラミックの包囲体は、熱処理
の際に酸化物超′ＦＪＬ４材と一体化され、この包囲体
部分が絶縁被覆となる。The heat-resistant ceramic enclosure in this invention is integrated with the oxide super'FJL4 material during heat treatment, and this enclosure portion becomes an insulating coating.
以下、この発明の一実施例を図について説明する。第１
図は超電導線の横断面図である。（１０）は耐熱性セラ
ミックの包囲体としてのアルミナパイプ、（２）はこの
アルミナパイプ（１０）中に充填密封の上、熱処理を施
されたＢａＣＯ３，Ｙ２Ｏ３、ＣＬＩＯ系超電系材電導
材。An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a cross-sectional view of a superconducting wire. (10) is an alumina pipe as a heat-resistant ceramic enclosure, and (2) is a BaCO3, Y2O3, CLIO-based superconducting material conductive material filled and sealed in the alumina pipe (10) and heat-treated.
上記実施例に用いたアルミナパイプ（１０）の長さ、外
径、肉厚はそれぞれ５０ｔｘ 、 ５．１ ｍ 、１．
Ｏｕ＋である。また超電導材（２）は、ＢａＣＯ５、Ｙ
２Ｏ３及びＣｕＯの各粉末を（Ｂａ１−ｘＹｘ ）Ｃｕ
Ｏｓ−ｙ （但し、Ｘは０．４）となるように配合し、
これをダールミルで混合したものをアルミナパイプ（１
０）に充填した。そして、これを電気炉の中で約９００
℃で４８時間保持した後、徐冷することにより目的とす
る酸化物系超電導体を得ることができる。The length, outer diameter, and wall thickness of the alumina pipe (10) used in the above example were 50 tx, 5.1 m, and 1.0 m, respectively.
It is Ou+. Moreover, the superconducting material (2) is BaCO5, Y
2O3 and CuO powders (Ba1-xYx)Cu
Blend so that Os-y (however, X is 0.4),
Mix this in a Dahl mill and use an alumina pipe (1
0). This is then heated in an electric furnace for approximately 900
The desired oxide-based superconductor can be obtained by maintaining the temperature at ℃ for 48 hours and then slowly cooling it.
上記実施例による酸化物系超電導体は、液体窒素温度（
７７Ｋ）で超電導状態となり、しかも包囲体としてのア
ルミナパイプ（１０）が電気絶縁性を有することＫより
、使用に際しての絶縁処理が不要であるため利便性にも
優れ、種々の目的に用いることができるものである。The oxide-based superconductor according to the above embodiment has a liquid nitrogen temperature (
It becomes a superconducting state at 77K), and since the alumina pipe (10) as an enclosure has electrical insulation properties, it is convenient and can be used for various purposes since no insulation treatment is required during use. It is possible.
なお、上記アルミナパイプ（１０）は、可撓性は期待で
きないため、使用する目的等に応じて予め所望の形状、
大きさに成形したものを用いることが望ましい。またア
ルミナパイプ（１０）の寸法、用いる超電導材（２）の
種類、配合比、熱処理の条件など何れも上記実施例のも
のに限定されるものでないことは当然である。Note that the alumina pipe (10) cannot be expected to be flexible, so it can be shaped into a desired shape or shape in advance depending on the purpose of use.
It is desirable to use one that has been molded to a certain size. Furthermore, it goes without saying that the dimensions of the alumina pipe (10), the type of superconducting material (2) used, the compounding ratio, the heat treatment conditions, etc. are not limited to those of the above embodiments.
因みに、アルミナパイプ（１０）の外径は例えば１．２
〜２０ｍ程度、肉厚は０．５〜５０程度のものなどは好
ましく用いることができる。また、内径が細くなると、
超電導材（２）が粉末状のままでは、その充填が困難と
なるが、その場合には混合した酸化物超電導材の粉末に
水もしくは有機溶媒及び必要に応じてバインダーを加え
てペースト状ないしは液状とすふことにより、充填が容
易となる。Incidentally, the outer diameter of the alumina pipe (10) is, for example, 1.2
A material having a wall thickness of about 0.5 to 50 m and a wall thickness of about 0.5 to 50 m can be preferably used. Also, as the inner diameter becomes smaller,
If the superconducting material (2) remains in powder form, it will be difficult to fill it, but in that case, add water or an organic solvent and, if necessary, a binder to the mixed oxide superconducting material powder to form a paste or liquid. This makes filling easier.
このように超電導材（２）をペースト状にして充填した
場合には、焼成に先立って低温、例えば１２０℃程度で
数時間予備加熱し、分散媒あるいはバインダーを除去す
ることは好ましいことである。この外、超電導材を溶融
物として充填しても差し支えない。When the superconducting material (2) is filled in the form of a paste in this way, it is preferable to preheat at a low temperature, for example, about 120° C., for several hours prior to firing to remove the dispersion medium or binder. In addition to this, it is also possible to fill the superconducting material as a melt.
さらに、アルミナパイプ（１０）の端部はそのままでも
良いが、必要により金属製、例えは銀（Ａｇ）のバルブ
（図示せず）をアルミナパイプ（１０）に接続し、焼成
時にこのバルブを閉じることにより、超電導材（２）の
端部をきれいに仕上げることができる。Furthermore, the end of the alumina pipe (10) may be left as is, but if necessary, a metal valve (not shown) made of silver (Ag), for example, is connected to the alumina pipe (10), and this valve is closed during firing. This allows the ends of the superconducting material (2) to be neatly finished.
尚、上記実施例ではＢａＣＯ５、Ｙ２Ｏ１１、ＣｕＯ系
超電導材の粉末を用いる様に述べたが、これ以外の超電
導材、例えばＹｂ −Ｂａ −Ｃａ −０系、５ｃ−Ｂ
ａ −Ｃｕ−０系等の酸化物超電導材でも同様の効果が
ある。また、パイプにはアルミナを用いる様に述べたが
、これ以外の高耐熱性セラミック、例えばマグネシア、
安定化ジルコニア、窒化ケイ素、チタニア等でも同様の
効果がある。In the above examples, powders of BaCO5, Y2O11, and CuO-based superconducting materials are used, but other superconducting materials such as Yb-Ba-Ca-0-based, 5c-B
Similar effects can be obtained with oxide superconducting materials such as a-Cu-0 series. Also, although I mentioned that alumina should be used for the pipe, other highly heat-resistant ceramics such as magnesia,
Stabilized zirconia, silicon nitride, titania, etc. have similar effects.
更に、セラミックの包囲体に充填する粉末は酸化物超電
導材の原料、例えば特定の酸化物、炭酸水素塩、炭酸塩
、硝酸塩、ホウ酸塩、硫酸塩、ノ・ロゲン化物、水酸化
物等でも同様の効果が期待される。Furthermore, the powder to be filled into the ceramic envelope may be a raw material for oxide superconducting materials, such as specific oxides, hydrogen carbonates, carbonates, nitrates, borates, sulfates, chlorides, hydroxides, etc. Similar effects are expected.
ところで、上記実施例ではこの発明を電線として用いる
場合について述べたが、線材のみならず、超電導テープ
、超電導シートなどであっても同様の効果を奏する。Incidentally, in the above embodiments, the case where the present invention is used as an electric wire has been described, but the same effect can be achieved not only with wires but also with superconducting tapes, superconducting sheets, etc.
〔発明の効果〕
以上の様Ｋ、この発明によれば耐熱性セラミックの包囲
体と、この包囲体に充填され、熱処理により一体化され
た酸化物超電導材とＫより構成したので、使用時に絶縁
加工の必要がなく、しかもセラミックの包囲体は充填粉
末中の酸素と反応することも無いので、超電導材の酸化
が充分に行われるという効果がある。[Effects of the Invention] According to the present invention, the enclosure is made of heat-resistant ceramic, and the oxide superconducting material filled in the enclosure and integrated by heat treatment is made of K, so that it is not insulated during use. There is no need for processing, and since the ceramic enclosure does not react with oxygen in the filling powder, the superconducting material is effectively oxidized.
第１図はこの発明の一実施例による酸化物系超電導線を
示す横断面図、第２図は従来の酸化物超電導線の一例を
示す断面図である。
（２）は酸化物超電導材、（１０）は耐熱性セラミック
の包囲体としてのアルミナパイプである。
なお、各図中、同一符号は同−又は相当部分を示す。
代理人 曾 我 道 照 醜第１図
１０；面寸熱セｔセラミ・・１７の包囲体（アルミナパ
イプ）
第 ２ 商FIG. 1 is a cross-sectional view showing an oxide superconducting wire according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing an example of a conventional oxide superconducting wire. (2) is an oxide superconducting material, and (10) is an alumina pipe as a heat-resistant ceramic enclosure. In each figure, the same reference numerals indicate the same or corresponding parts. Agent Zeng Wa Do Teru Ugly Fig. 1 10; Surface size heat set Ceramic... 17 enclosure (alumina pipe) 2nd quotient
Claims (2)
包囲体中に充填され、熱処理により一体化された酸化物
超電導材とからなる酸化物系超電導体。(1) An oxide superconductor consisting of a heat-resistant ceramic enclosure and an oxide superconducting material filled in the ceramic enclosure and integrated by heat treatment.
ある特許請求の範囲第１項記載の酸化物系超電導体。(2) The oxide superconductor according to claim 1, wherein the heat-resistant ceramic enclosure is an alumina pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62256181A JPH01100809A (en) | 1987-10-13 | 1987-10-13 | Oxide superconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62256181A JPH01100809A (en) | 1987-10-13 | 1987-10-13 | Oxide superconductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100809A true JPH01100809A (en) | 1989-04-19 |
Family
ID=17289032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62256181A Pending JPH01100809A (en) | 1987-10-13 | 1987-10-13 | Oxide superconductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100809A (en) |
-
1987
- 1987-10-13 JP JP62256181A patent/JPH01100809A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1340229C (en) | Bismuth oxide superconductors, and devices and systems comprising such aconductor | |
| JP2685751B2 (en) | Compound superconducting wire and method for producing compound superconducting wire | |
| JPH04292819A (en) | Manufacture of oxide superconductive wire | |
| JPH01100809A (en) | Oxide superconductor | |
| JPH02207420A (en) | Manufacture of superconducting wire rod | |
| JPH06139848A (en) | Manufacture of oxide high-temperature superconducting wire rod | |
| JP2634187B2 (en) | Method for producing thallium-based oxide superconductor | |
| JP3154239B2 (en) | Manufacturing method of ceramic superconducting conductor | |
| Kohno et al. | Characteristics of high-Tc oxide wire | |
| JP3590567B2 (en) | Manufacturing method of oxide superconducting wire and oxide superconducting wire | |
| JP2727565B2 (en) | Superconductor manufacturing method | |
| JPH04262308A (en) | Oxide superconductive wire rod | |
| JPH0518778B2 (en) | ||
| JP2746881B2 (en) | Superconducting material manufacturing method | |
| JPH0745357B2 (en) | Superconducting fibrous single crystal and method for producing the same | |
| JPH01172227A (en) | Oxide superconductor | |
| Poeppel et al. | Recent improvements in bulk properties of ceramic superconductors | |
| JPH04170320A (en) | Production of oxide superconducting material | |
| JPS63259917A (en) | Superconductive moulded matter | |
| JPH01201060A (en) | Production of superconductor | |
| JPH01304618A (en) | Manufacture of oxide superconductive filament | |
| JPH02189817A (en) | Manufacture of wire rod of oxide superconductive tape state | |
| JPS63225410A (en) | Compound superconductive wire and its manufacture | |
| JPH0395808A (en) | Manufacture of oxide superconductor wire rod | |
| JPH08279313A (en) | Manufacture of tl system superconductive wire material |