JPS63279529A - Manufacture of superconductor molding - Google Patents
Manufacture of superconductor moldingInfo
- Publication number
- JPS63279529A JPS63279529A JP62114325A JP11432587A JPS63279529A JP S63279529 A JPS63279529 A JP S63279529A JP 62114325 A JP62114325 A JP 62114325A JP 11432587 A JP11432587 A JP 11432587A JP S63279529 A JPS63279529 A JP S63279529A
- Authority
- JP
- Japan
- Prior art keywords
- superconductor
- powder
- perovskite
- molded body
- oxide superconductor
- 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 62
- 238000000465 moulding Methods 0.000 title claims abstract 4
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 2
- 229910052693 Europium Inorganic materials 0.000 claims description 2
- 229910052765 Lutetium Inorganic materials 0.000 claims description 2
- 229910052775 Thulium Inorganic materials 0.000 claims description 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 229910052691 Erbium Inorganic materials 0.000 claims 1
- 229910052689 Holmium Inorganic materials 0.000 claims 1
- 229910009203 Y-Ba-Cu-O Inorganic materials 0.000 claims 1
- 230000002950 deficient Effects 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 2
- 230000007547 defect Effects 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- -1 llo Inorganic materials 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- KOAWAWHSMVKCON-UHFFFAOYSA-N 6-[difluoro-(6-pyridin-4-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methyl]quinoline Chemical compound C=1C=C2N=CC=CC2=CC=1C(F)(F)C(N1N=2)=NN=C1C=CC=2C1=CC=NC=C1 KOAWAWHSMVKCON-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005493 condensed matter Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium 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)
- 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、ペロブスカイト型の酸化物超電導体粉末を用
いた超１導体成形体の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for producing a super-uniconductor molded body using perovskite-type oxide superconductor powder.
（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温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
ｔｅｒ ６４゜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
る欠陥ペロブスカイト型（Ａ８ａ２Ｃｕ３０７−δ型）
（Ａは、Ｙ、 Ｙｂ、 ｌｌｏ、 Ｄｙ、 Ｅｕ。(Prior Art) In recent years, it has been announced that layered perovskite-type oxides based on Ba-La-Cu-0 may have a high critical temperature, and since then, research on oxide superconductors has been carried out in various places. (Z, Phys, B Condensed Mat
ter 64°189-193 (1986)). Among them, defective perovskite type (A8a2Cu307-δ type) with oxygen defects represented by Y-Ba-Cu-0 system.
(A is Y, Yb, llo, Dy, Eu.
Ｅ「’、 ＴｍおよびＬｕから選ばれた元素、δは１以
下の数を示す。以下同じ。）の酸化物超電導体は、臨界
温度■。が９０に以上と液体窒素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ている（Ｐｈｙｓ
、Ｒｅｖ、Ｌｅｔｔ、ｖｏｌ、 ５８ ＮＯ，９，９
０８−９１０）。The oxide superconductor of E', an element selected from Tm and Lu, δ is a number of 1 or less (the same applies hereinafter) has a critical temperature of 90 or higher, which is higher than liquid nitrogen. Therefore, it is attracting attention as a very promising material (Phys
,Rev,Lett,vol,58 NO,9,9
08-910).
しかしなから、この超電導体は、結晶性の酸化物であっ
て、焼結体または粉末としで得られるため、例えば厚さ
の薄いリング形状等に成形加工するごとが困難で、加工
により優れた超伝導特性が１口なわれるおそれがあった
。まして任意の形状あるいは大きさの超電導体成形体を
得ることは非常に困難であった。However, since this superconductor is a crystalline oxide and can be obtained as a sintered body or powder, it is difficult to form it into a thin ring shape, for example, and it is difficult to process it into a thin ring shape. There was a risk that the superconducting properties would be damaged. Furthermore, it has been extremely difficult to obtain a superconductor molded body of any shape or size.
（発明が解決しようとする問題点）
このようにペロブスカイト型超電導体は、焼結体または
粉末であるため、超伝導特性を損なうことなく所望の形
状あるいは大きさの超電導体成形体を得ることが困難で
あった。(Problems to be Solved by the Invention) As described above, since the perovskite superconductor is a sintered body or a powder, it is possible to obtain a superconductor molded body of a desired shape or size without impairing the superconducting properties. It was difficult.
本発明は、このような従来の難点を解消すべくなされた
もので、ペロブスカイト型超電導体粉末を用いた超電導
特性の良い超電導体成形体を容易に、しかも任意の形状
および大きさで得ることができる超電導体成形体の製造
方法を提供することを目的とする。The present invention has been made to solve these conventional difficulties, and makes it possible to easily obtain a superconductor molded body with good superconducting properties using perovskite superconductor powder in any shape and size. The purpose of the present invention is to provide a method for manufacturing a superconductor molded body that can be produced.
［発明の構成］
すなわら本発明の超電導体成形体の製造方法は、ペロブ
スカイト型の酸化物超電導体粉末と結合剤と溶剤とを混
合してなるスラリー状組成物を、基材上に流延塗布しそ
の表面をドクタープレードにより整面した後乾燥させて
超電導体膜を形成し、次いでこの超電導体膜を前記基材
から分離し、そのままもしくは所定の形状に成形した後
熱処理することを特徴としている。[Structure of the Invention] In other words, the method for producing a superconductor molded body of the present invention involves pouring a slurry composition formed by mixing a perovskite-type oxide superconductor powder, a binder, and a solvent onto a base material. A superconductor film is formed by spreading the coating, smoothing the surface with a doctor blade, and drying it to form a superconductor film, and then separating the superconductor film from the base material and heat-treating it as it is or after forming it into a predetermined shape. It is said that
本発明に使用される酸化物超電導体粉末は、希土類元素
を含有するペロブスカイト型の酸化物超電導体からなる
。The oxide superconductor powder used in the present invention consists of a perovskite-type oxide superconductor containing a rare earth element.
ここでいう希土類元素を含有するぺＬ１ブスカイト型の
酸化物超電導体は、超電導状態を実現しうるものであれ
ばよく、ＡＢａ２ Ｃｕ３０７−δ型系（δは酸素欠陥
で通常１以下、Ｂａの一部をＳ「等の元素で置換したも
のを含む。）等の酸素欠陥を右する欠陥ペロブスカイト
型、５ｒ−ｔａ−ｃｕ−ｏ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構造を有する酸化物とする
。また希土類元素も広義の定義とし、Ｓｃ、 Ｖおよ
びランタン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、５ｃ−Ｂａ−Ｃｕ−０系、
５ｒ−Ｌａ−ＣＵ−０系、さらにＳｒをＢａ、Ｃａで置
換した系等があげられる。The rare-earth element-containing PeL1 buskite type oxide superconductor mentioned here may be one that can realize a superconducting state, and may be an ABa2 Cu307-δ type oxide superconductor (δ is an oxygen defect, usually less than 1, and Ba is less than 1). Oxides having a perovskite-type structure in a broad sense, such as a defect perovskite type with oxygen defects such as S (including those in which the moiety is replaced with an element such as S), and a layered perovskite type such as a 5r-ta-cu-o system. Rare earth elements are also broadly defined and include Sc, V, and lanthanum.A typical system is Y-
In addition to Ba-Cu-0 series, 5c-Ba-Cu-0 series,
Examples include the 5r-La-CU-0 system, and systems in which Sr is replaced with Ba or Ca.
このような酸化物超電導体粉末を得るには、たとえばＹ
％Ｂａ、 Ｃｕ等のべ０ブス力イト型の酸化物超電導体
の構成要素を十分混合する。この揚台Ｙ２０３．Ｂａｄ
、 ＣｕＯ等の酸化物を用いることができる。またこれ
らの酸化物のほかに、焼成後酸化物に転化する炭酸塩、
硝酸塩、シュウ酸塩、水酸化物等の化合物を用いてもよ
い。これら原料の混合比は、基本的に化学ｆｒｉ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
で変えることもでき、たとえばＹ−Ｂａ−Ｃｕ−０系で
は、Ｙｌｍｏｌに対してＢａ ２ｍｏｌ 、 Ｃｕ ３
ｍｏｌが標準組成であるが、実用上はＹ Ｏ，６〜１．
４ ｓｏ１％、Ｂａ １．５〜３．Ｏｍｏ１％、Ｃｕ
２．０〜４．０ ｓｏ１％程度のずれは問題ない。To obtain such an oxide superconductor powder, for example, Y
%Ba, Cu, and other constituent elements of the aluminum oxide superconductor are thoroughly mixed. This platform Y203. Bad
, CuO, and other oxides can be used. In addition to these oxides, carbonates, which are converted to oxides after firing,
Compounds such as nitrates, oxalates, hydroxides, etc. may also be used. The mixing ratio of these raw materials is basically mixed so that the composition is chemically stoichiometric, but it can be changed somewhat depending on the manufacturing conditions, etc. For example, in the Y-Ba-Cu-0 system, Ylmol On the other hand, 2 mol of Ba and 3 mol of Cu
mol is the standard composition, but in practice it is YO, 6-1.
4 so1%, Ba 1.5-3. Omo1%, Cu
A deviation of about 2.0 to 4.0 so1% is not a problem.
原料を混合した後、８００〜１０００℃の温度で数時間
〜３日程度焼成し反応させて結晶化させ、次いで、この
焼成物をボールミル、その他公知の手段により粉砕する
。このとき、ペロブスカイト型の酸化物超電導体粉末は
、へき開面から分割されて微粉末となる。なお上記焼成
は、本発明においては、必ずしも必要ではない。After mixing the raw materials, they are fired at a temperature of 800 to 1000°C for several hours to three days to react and crystallize, and then the fired product is pulverized by a ball mill or other known means. At this time, the perovskite-type oxide superconductor powder is divided from the cleavage plane and becomes fine powder. Note that the above-mentioned firing is not necessarily necessary in the present invention.
また本発明に使用される結合剤としては、ポリビニルブ
チラール、トリブチルフォスフ１−ト、アクリル樹脂等
があげられる。結合剤の配合Ｗは、５〜２０重量％の範
囲が適当である。Further, examples of the binder used in the present invention include polyvinyl butyral, tributyl phosphate, acrylic resin, and the like. The binder content W is suitably in the range of 5 to 20% by weight.
さらに本発明に使用される溶剤としては、メチルエチル
ケトン、１，１．１−トリクロルエタン、ｎ−ブタノー
ル、四塩化メチレン、テトラクロルエチレン等があげら
れる。Furthermore, examples of the solvent used in the present invention include methyl ethyl ketone, 1,1.1-trichloroethane, n-butanol, methylene tetrachloride, and tetrachloroethylene.
本発明においては、以上の成分を公知の混合手段により
十分混合して、１００００〜３００００センチボイズ程
度の粘度のスラリー状組成物とづる。次いでこのスラリ
ー状組成物を基材上に流延塗布し、ドクタープレードに
よりその表面を整面するとともに所望の厚さに調整した
後乾燥さＵて溶剤を揮発させる。この後、超電導体膜を
基材から剥離し、そのままもしくは打抜き加工等により
所望の形状に成形し、必要に応じて脱脂処理した後、８
００〜９４０℃程度で、０．５〜３６時間程度熱処理を
行う。In the present invention, the above components are sufficiently mixed by a known mixing means to prepare a slurry composition having a viscosity of about 10,000 to 30,000 centivoise. Next, this slurry-like composition is cast onto a substrate, its surface is leveled with a doctor blade, and the desired thickness is adjusted, followed by drying to evaporate the solvent. Thereafter, the superconductor film is peeled off from the base material, and formed into a desired shape as it is or by punching, etc., and after degreasing as necessary, 8
Heat treatment is performed at about 00 to 940°C for about 0.5 to 36 hours.
なおこの熱処理は、十分な酸素を供給しつる酸素含有雰
囲気内で行うことが望ましい。ペロブスカイト型超電導
体の酸素空席に酸素が導入され、δの値が減少して、超
電導体の電流密度がさらに向上する。Note that this heat treatment is desirably performed in an oxygen-containing atmosphere that supplies sufficient oxygen. Oxygen is introduced into the oxygen vacancies in the perovskite superconductor, reducing the value of δ and further improving the current density of the superconductor.
また、本発明においては、熱処理前の段階で厚さ方向に
加圧してもよく、また基材から剥離した超電Ｓ膜を複数
枚積層し、熱処理により一体に焼成するようにしてしよ
い。Further, in the present invention, pressure may be applied in the thickness direction at a stage before heat treatment, or a plurality of superelectric S films peeled from the base material may be laminated and baked integrally by heat treatment.
なお、本発明によれば、欠陥ペロブスカイト構造を有す
る酸化物超電導体の０面が、成形されたシートの面方向
にそろい易いため、よりすぐれた超電導特性を実現でき
る。In addition, according to the present invention, since the zero plane of the oxide superconductor having a defective perovskite structure is easily aligned in the plane direction of the molded sheet, better superconducting properties can be achieved.
（作用）
本発明の超電導体成形体の製造方法では、上述したよう
なペロブスカイト型の酸化物超電導体粉末と結合剤と溶
剤とを混合して得たスラリー状組成物を用いることによ
り、非常に簡単な方法で、ペロブスカイト型超電導体粉
末を用いた特性の良い超電導体成形体を任意の形状およ
び大きさで得ることができる。(Function) In the method for producing a superconductor molded body of the present invention, by using a slurry composition obtained by mixing the above-described perovskite-type oxide superconductor powder, a binder, and a solvent, A superconductor molded body with good characteristics using perovskite superconductor powder can be obtained in any shape and size by a simple method.
（実施例） 次に本発明の実施例について説明する。(Example) Next, examples of the present invention will be described.
実施例
ＢａＣＯ３粉末２ｍ粉末２冗ｏＹ２ｏ３粉末０．５ｍｏ
１％、ＣｕＯ粉末３ｍｏ １％を寸分混合し、９００℃
で２４時間焼成した後粉砕して、ペロブスカイト型超電
導体粉末を得た。Example BaCO3 powder 2m powder 2 oz. Y2o3 powder 0.5 mo
1% CuO powder and 3mo 1% of CuO powder were mixed and heated to 900℃.
After firing for 24 hours, the powder was pulverized to obtain perovskite superconductor powder.
次に、得られた酸化物超電導体粉末に結合剤として、ポ
リビニルブチラールを１０重９％添加し、さらに溶剤を
加え、十分混合して２００００センチボイズのスラリー
状組成物を得た。Next, 10% by weight of polyvinyl butyral was added as a binder to the obtained oxide superconductor powder, and a solvent was further added and thoroughly mixed to obtain a slurry composition with a diameter of 20,000 centivoids.
このようにして（ｑたスラリー状組成物を、４００１１
１１＋１Ｘ１０Ｇ０１１１Ｘ ０．２ｍｍの基材上に流
延塗布し、ドクタープレードによりその表面を整面し、
乾燥させた後、基材から剥離さゼて、厚さ１．５ａ＋ｍ
の未焼成の超電導体シート得た。続いて、このシートを
打抜加工により外径４５＋ｕ、内径３０＋＋ｕｎのリン
グに成形し、大気中で５００℃で６時間保持し脱脂を行
った後、大気中で９００℃で２４時間焼成し、次いでＰ
ｌｉ素雰素気囲気中００℃で２４時間の熱処理を行ない
酸素空席に酸素を充分導入させた。In this way, the slurry composition (40011
11 + 1
After drying, it peels off from the base material and has a thickness of 1.5a + m.
An unfired superconductor sheet was obtained. Subsequently, this sheet was formed into a ring with an outer diameter of 45+u and an inner diameter of 30++un by punching, and after being held at 500°C in the atmosphere for 6 hours to degrease, it was fired at 900°C in the air for 24 hours, and then P
Heat treatment was performed at 00° C. for 24 hours in a lithium atmosphere to sufficiently introduce oxygen into the oxygen vacancies.
このようにして得た超電導体超電導特性を測定したとこ
ろ、臨界温度は９１にであり、臨界電流密度は１２００
Ａ ／ ｃ／であった。When the superconducting properties of the superconductor thus obtained were measured, the critical temperature was 91, and the critical current density was 1200.
It was A/c/.
［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
の製造方法によれば、ペロブスカイト型の酸化物超電導
体粉末を用いた超電導特性の良い超電導体のシートを容
易にしかも任意の形状および大きさで得ることができる
。[Effects of the Invention] As is clear from the above examples, according to the method for producing a superconductor of the present invention, a superconductor sheet with good superconducting properties using perovskite-type oxide superconductor powder can be easily produced. Moreover, it can be obtained in any shape and size.
Claims (5)
と溶剤とを混合してなるスラリー状組成物を、基材上に
流延塗布しその表面をドクタープレードにより整面した
後乾燥させて超電導体膜を形成し、次いでこの超電導体
膜を前記基材から分離し、そのままもしくは所定の形状
に成形した後熱処理することを特徴とする超電導体成形
体の製造方法。(1) A slurry composition made by mixing perovskite-type oxide superconductor powder, a binder, and a solvent is cast onto a base material, the surface is leveled with a doctor blade, and then dried to conduct superconducting. 1. A method for producing a superconductor molded body, which comprises forming a superconductor film, then separating the superconductor film from the base material, and heat-treating the superconductor film as it is or after molding it into a predetermined shape.
るペロブスカイト型の酸化物超電導体である特許請求の
範囲１項記載の超電導体成形体の製造方法。(2) The method for producing a superconductor compact according to claim 1, wherein the oxide superconductor powder is a perovskite-type oxide superconductor containing a rare earth element.
Ｏ＿７＿−＿δ系の酸化物超電導体（Ａは、Ｙ、Ｙｂ、
Ｈｏ、Ｄｙ、Ｅｕ、Ｅｒ、Ｔｍ、およびＬｕから選ばれ
た元素、δは１以下の数を示す。）である特許請求の範
囲第１項または第２項記載の超電導体成形体の製造方法
。(3) The oxide superconductor powder is ABa_2Cu_3
O_7_-_δ-based oxide superconductor (A is Y, Yb,
An element selected from Ho, Dy, Eu, Er, Tm, and Lu, and δ represents a number of 1 or less. ) A method for producing a superconductor molded body according to claim 1 or 2.
系である特許請求の範囲第１項ないし第３項のいずれか
１項記載の超電導体成形体の製造方法。(4) The oxide superconductor powder is Y-Ba-Cu-O
A method for producing a superconductor molded body according to any one of claims 1 to 3, which is a superconductor molded body.
雰囲気中で行われる特許請求の範囲第１項ないし第４項
のいずれか１項記載の超電導体成形体の製造方法。(5) The method for producing a superconductor molded body according to any one of claims 1 to 4, wherein the heat treatment is performed at a temperature of 800 to 940°C in an oxygen-containing atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62114325A JPS63279529A (en) | 1987-05-11 | 1987-05-11 | Manufacture of superconductor molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62114325A JPS63279529A (en) | 1987-05-11 | 1987-05-11 | Manufacture of superconductor molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63279529A true JPS63279529A (en) | 1988-11-16 |
Family
ID=14635003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62114325A Pending JPS63279529A (en) | 1987-05-11 | 1987-05-11 | Manufacture of superconductor molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63279529A (en) |
-
1987
- 1987-05-11 JP JP62114325A patent/JPS63279529A/en active Pending
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