JPS63299209A - Manufacture of oxide superconducting coil - Google Patents
Manufacture of oxide superconducting coilInfo
- Publication number
- JPS63299209A JPS63299209A JP13362087A JP13362087A JPS63299209A JP S63299209 A JPS63299209 A JP S63299209A JP 13362087 A JP13362087 A JP 13362087A JP 13362087 A JP13362087 A JP 13362087A JP S63299209 A JPS63299209 A JP S63299209A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- oxide
- temperature
- superconducting coil
- oxide superconducting
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000011521 glass Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 9
- 239000002887 superconductor Substances 0.000 claims abstract description 8
- 238000010304 firing Methods 0.000 claims abstract description 6
- 238000007606 doctor blade method Methods 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 6
- 150000002823 nitrates Chemical class 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000004014 plasticizer Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 2
- 229910052772 Samarium Inorganic materials 0.000 claims description 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- 229910052684 Cerium Inorganic materials 0.000 claims 1
- 229910052691 Erbium Inorganic materials 0.000 claims 1
- 229910052689 Holmium Inorganic materials 0.000 claims 1
- 229910052775 Thulium Inorganic materials 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 239000006060 molten glass Substances 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000017399 Caesalpinia tinctoria Nutrition 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 241000388430 Tara Species 0.000 description 1
- -1 YzQs Chemical compound 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- Y02E40/642—
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、高い臨界温度を持つ酸化物超電導コイルの
製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing an oxide superconducting coil having a high critical temperature.
（従来の技術〕
最近、核融合、磁気浮上列車、核磁気共鳴装置、電磁石
、物性研究等の分野において、運転コストの低い強磁場
を作る超電導マグネットが望まれている。１９８７年に
なって、非常に高い臨界温度Ｔｃを持った酸化物超電導
体が発見され、液体窒素温度（７７°に）でも超電導性
を示すようになフ・た。(Prior Art) Recently, in fields such as nuclear fusion, magnetic levitation trains, nuclear magnetic resonance devices, electromagnets, and physical property research, superconducting magnets that generate strong magnetic fields with low operating costs have been desired.In 1987, An oxide superconductor with a very high critical temperature Tc was discovered, and it became possible to exhibit superconductivity even at liquid nitrogen temperatures (up to 77°).
この種の高い臨界温度Ｔｃを持つ酸化物超電導体は、Ｙ
−Ｂａ −Ｃｕ−０系酸化物を例にとれば、ＢａＣＯ３
，Ｙ、Ｏ，、（：ｕＯの各粉末を混合し、プレス成形し
た後、熱処理して作成される。This kind of oxide superconductor with a high critical temperature Tc is Y
-Ba -Cu-0 series oxide is taken as an example, BaCO3
, Y, O, , (:uO) are mixed, press-molded, and then heat-treated.
なあ、この分野の技術については、例えば、雑誌（Ｐｈ
ｙｓ、Ｒｅｖ、ＬｅｔＬ、５８（１９８７）Ｐ２Ｏ３〜
Ｐ９１０）に記載されている。By the way, regarding technology in this field, for example, please refer to the magazine (Ph.D.
ys, Rev, LetL, 58 (1987) P2O3~
P910).
（発明が解決しようとする問題点）
しかし、このような作成方法では、長さがせいぜい数１
０１閣のブロック状のものしか作成できず、長尺の線状
のものはできなかった。このため、超電導マグネットの
ためのコイル化は不可能であった。(Problem to be solved by the invention) However, in this production method, the length is at most several
I was only able to create a block-shaped version of the 01 kaku, and I couldn't create a long linear version. For this reason, it has been impossible to form coils for superconducting magnets.
この発明は、このような問題点を解決するためにされた
もので、高い温度で運転できる超電導マグネット用のコ
イルを得ることを目的とする。The present invention was made to solve these problems, and an object of the present invention is to obtain a coil for a superconducting magnet that can be operated at high temperatures.
（問題点を解決するための手段）
この発明に係る酸化物超電導コイルの製造方法は、焼成
によって酸化物超電導体が生成されるように配合された
酸化物、硝酸塩及び炭酸塩のうちいずれか一種以上の粉
末またはすでに超電導性を存する酸化物粉末と樹脂バイ
ンダーと可塑剤と有機溶剤とより成るスラリーから、ド
クターブレード法にてシートを作成し、このシートをテ
ープ状にスリットしたのち焼成してテープ状の焼結シー
トとなし、この焼結シートの表面にガラス材を付着させ
、これを焼結シートの可塑化変形温度であり、かつ付着
ガラス材の軟化温度以上の温度でコイル状に巻き取るこ
とを特徴とするものである。(Means for Solving the Problems) The method for manufacturing an oxide superconducting coil according to the present invention is characterized in that one of oxides, nitrates, and carbonates is blended so that an oxide superconductor is produced by firing. A sheet is made using the doctor blade method from the above powder or a slurry consisting of an oxide powder that already has superconducting properties, a resin binder, a plasticizer, and an organic solvent, and this sheet is slit into a tape shape and then fired to create a tape. A glass material is attached to the surface of this sintered sheet, and this is wound into a coil at a temperature that is the plasticization deformation temperature of the sintered sheet and higher than the softening temperature of the attached glass material. It is characterized by this.
この発明によれば、ドクターブレード法によりシートを
作成し、これをスリットしてテープ状にに切断するので
、その長尺化が容易である。According to this invention, since a sheet is created by the doctor blade method and then slit and cut into tape shapes, it is easy to lengthen the sheet.
また、テープ状の焼結シートの表面にガラス材を付着さ
せ、これを焼結シートの可塑化変形温度であり、かつ付
着ガラス材の軟化温度以上の温度で巻き取るのて、焼結
シートにガラスの絶縁被膜が形成されるとともに、こわ
れやすい酸化物焼結シートをコイル状に巻き取ることが
できる。In addition, a glass material is attached to the surface of a tape-shaped sintered sheet, and this is rolled up at a temperature that is the plasticization deformation temperature of the sintered sheet and higher than the softening temperature of the attached glass material. A glass insulating coating is formed, and the fragile sintered oxide sheet can be wound into a coil.
〔実施例）
次に、この発明の実施例を第１図を引用しながら説明す
る。[Example] Next, an example of the present invention will be described with reference to FIG.
第１図は実施例の酸化物超電導コイルの製造方法を実施
する装置の模式図である。図において、１はスラリー、
２は成形用フィルム、３はドクターブレード、４はシー
ト乾燥炉、５は成形シート、６はスリッター、７は焼成
炉、８はガラス溶融タンク窯、９は溶融ガラス、１０は
巻取り炉、１１は巻取りコイルである。FIG. 1 is a schematic diagram of an apparatus for carrying out a method for manufacturing an oxide superconducting coil according to an example. In the figure, 1 is slurry;
2 is a forming film, 3 is a doctor blade, 4 is a sheet drying furnace, 5 is a forming sheet, 6 is a slitter, 7 is a firing furnace, 8 is a glass melting tank kiln, 9 is a molten glass, 10 is a winding furnace, 11 is a wound coil.
（実施例１）
組成比が（Ｂａ０．８ｙＯ，ａ） ２（：Ｌ１０４にな
るように配分したＢａＣＯ３、ＹｚＱｓ、ＣｕＯの炭酸
塩、酸化物の原料粉末（純度９９．９９Ｘ、平均粒系的
１０μｍ）ＩＫｇに、有機バインダーとしてポリビニル
・ブチラール樹脂を５０ｇ、可塑剤としてジプチル・フ
タレート３０ｇ及び有機溶剤としてトルエン・エタノー
ル混合液４００ｇをそれぞれ加え、ボールミルにて２４
時間混合して成形用スラリーを作成した。(Example 1) Raw material powders of carbonates and oxides of BaCO3, YzQs, and CuO distributed so that the composition ratio was (Ba0.8yO,a)2(:L104 (purity 99.99X, average particle size 10 μm) ) Add 50 g of polyvinyl butyral resin as an organic binder, 30 g of diptyl phthalate as a plasticizer, and 400 g of a toluene/ethanol mixture as an organic solvent to IKg, and use a ball mill for 24 hours.
A slurry for molding was prepared by mixing for a period of time.
このスラリー１を、ドクターブレード３により、矢印方
向に回転している成形用フィルムｚ上に流延し、これを
乾燥炉４において１００℃で１時間乾燥し、幅４０■■
、厚さ０．４ｍｍの成形シート５を作成した。ついでミ
この成形シート５の両側端部をスリッター６で除いて幅
２．５１１■のシート１本を取り出し、これを酸化雰囲
気の焼成炉７ニ入して１１００℃で１０時間焼成してテ
ープ状焼結シートを得た。このテープ状焼結シートを、
融点が１１００℃で軟化点が９００”ｌ：のＡｈ０３−
５ｆＯ＊−ＢｚＯｓ ’Ｉｓの溶融ガラス９を入れたタ
ンク窯８に通して、その表面にガラス材を付着させ、こ
わを焼結シートの可塑化変形温度であって、付着ガラス
材の軟化温度以上の温度、すなわち、１０００℃の温度
で、コイル状に巻き取った。This slurry 1 is cast by a doctor blade 3 onto a forming film z rotating in the direction of the arrow, and dried in a drying oven 4 at 100°C for 1 hour to give a width of 40 mm.
A molded sheet 5 having a thickness of 0.4 mm was prepared. Next, both ends of Miko's formed sheet 5 are removed with a slitter 6 to take out a sheet with a width of 2.511 cm, which is placed in a firing furnace 7 in an oxidizing atmosphere and fired at 1100°C for 10 hours to form a tape. A sintered sheet was obtained. This tape-shaped sintered sheet is
Ah03- with a melting point of 1100°C and a softening point of 900"l:
The molten glass 9 of 5fO*-BzOs'Is is passed through a tank kiln 8 containing a glass material to adhere to its surface, and the stiffness is reduced to a temperature equal to the plasticizing deformation temperature of the sintered sheet and higher than the softening temperature of the adhered glass material. It was wound into a coil at a temperature of 1000°C.
得られた巻取りコイル１１は、巻き径が約３０ｔａｒａ
で、巻き数が５Ｏ＠のもので、巻き取フた焼結シートの
幅は２ｍｍで厚さは０．３ｍｇ＊であり、その表面には
ガラス材が約５０μｍ付着していた。The obtained wound coil 11 has a winding diameter of about 30 tara.
The number of turns was 50@, the width of the sintered sheet on the lid was 2 mm, the thickness was 0.3 mg*, and about 50 μm of glass material was attached to the surface.
このコイルを液体窒素温度まで冷やして通電試験を行っ
たところ、１平方センチメートル当り１００アンペアの
超％Ｃ導電流が得られ、かつ数１００ガラスの磁力線が
発生した。When this coil was cooled to liquid nitrogen temperature and subjected to a current conduction test, a super-%C conduction current of 100 amperes per square centimeter was obtained, and several hundred lines of magnetic force were generated.
（実施例２）
（Ｙｏ、 ｅＢａｏ、 ４） ５ｃｕｚＯｖになるよう
に配分したＢａ。(Example 2) (Yo, eBao, 4) Ba distributed so as to be 5 cuzOv.
Ｙ、Ｃｕの硝酸塩粉末を酸素を含む雰囲気中において６
００〜１１００℃で熱処理して、酸化物とした。この酸
化物粉末は、この段階で、すでに超電導性を示すことが
磁気測定によつて確認できた。In an atmosphere containing oxygen, Y and Cu nitrate powders are heated to 6
It was heat-treated at 00 to 1100°C to form an oxide. It was confirmed by magnetic measurements that this oxide powder already exhibited superconductivity at this stage.
次に、この粉末を用いて上記実施例と同様の工程でコイ
ルを作成し、液体窒素温度で通電試験を行ったところ、
実施例１並みの結果が得られた。Next, a coil was created using this powder in the same process as in the above example, and a current test was conducted at liquid nitrogen temperature.
Results similar to those in Example 1 were obtained.
（実施例３）
（Ｙｂｏ、 ６Ｂａｏ、 ４） ３（：ｕ３０６になル
ヨウニ配合シタＢａＣ０１、Ｙｂｚ０３、ＣｕＯの各原
料粉末（純度９９．９Ｈ，平均粒径約ＩＯμｍ）をＳＯ
Ｏ〜１１００℃で熱処理して酸化物粉末を得た。この状
態で既に酸化物粉末は超電導性を示すことが磁化測定に
よって確認できた。次に、この粉末を用いて上記実施例
１゜２と同様の工程でコイルを作成した。これについて
も同様に通電試験を行ったところ、実施例１゜２と同様
の結果が得られた。(Example 3) (Ybo, 6Bao, 4) 3(:U306 and Ruyouni blended raw material powders of BaC01, Ybz03, and CuO (purity 99.9H, average particle size about IO μm) were SO
An oxide powder was obtained by heat treatment at 0 to 1100°C. It was confirmed by magnetization measurements that the oxide powder already exhibits superconductivity in this state. Next, a coil was made using this powder in the same process as in Example 1-2 above. When a current test was conducted on this as well, the same results as in Example 1.2 were obtained.
上記各実施例では、Ｙ−Ｂａ−Ｃｕ−０系、 Ｙｂ−Ｂ
ａ−Ｃｕ−０系酸化物について述べたが、これ以外の臨
界温度の高いａ７４導体、例えば、５ｃ−Ｂａ−Ｃｕ−
０系、Ｌａ−５ｒ−（：ｕ−０系の酸化物であってもよ
い。すなわち、この発明に係る酸化物超電導体は、Ｍ、
、Ｍ２、Ｃｕ、０を含む元素からなる酸化物で、帽が■
、族元素、Ｍ２が■、族元素のものである。■、族元素
としては、Ｌａ、 Ｙ 、 Ｙｂ、 Ｓｃ、 （：１！
％Ｐｒ、Ｓｍ、 Ｈａ、 Ｅｒ及びＴＬｌのいずれか
一種以上のものが用いられる。また、■１族元素として
は、Ｂａ、 Ｓｒ、 Ｃａ及びＭｇのいずれか一種以上
が用いられる。In each of the above examples, Y-Ba-Cu-0 system, Yb-B
Although the a-Cu-0 series oxide has been described, other a74 conductors with high critical temperatures, such as 5c-Ba-Cu-
0 series, La-5r-(:u-0 series oxide. In other words, the oxide superconductor according to the present invention may include M,
, M2, Cu, is an oxide consisting of elements including 0, and the cap is ■
, a group element, M2 is a group element. ■ Group elements include La, Y, Yb, Sc, (:1!
%Pr, Sm, Ha, Er, and TLl are used. Furthermore, as the Group 1 element, one or more of Ba, Sr, Ca, and Mg is used.
また、この発明に係る原料粉末は、酸化物、炭酸塩、硝
酸塩などの超電導性を示さないものだけではなく、すで
に超電導性を有する酸化物粉末でもよい。なお、上記実
施例では、出発原料が酸化物と炭酸塩を組合せたもの、
及び硝酸塩だけのものを示したが、安定した酸化物が得
られれば酸化物のみの組合せでもよい。Furthermore, the raw material powder according to the present invention is not limited to powders that do not exhibit superconductivity, such as oxides, carbonates, and nitrates, but may also be oxide powders that already have superconductivity. In the above examples, the starting materials were a combination of oxides and carbonates;
Although only nitrates and nitrates are shown, a combination of only oxides may be used as long as a stable oxide can be obtained.
さらに、焼成は、上述のように、酸素を含む雰囲気中で
行なうが、焼成温度としては、６００℃では炭酸塩が分
解せず、１５００℃以上では酸化物が不安定になるので
、６００〜ｂ
度範囲がよい。Furthermore, as mentioned above, calcination is performed in an atmosphere containing oxygen, but the calcination temperature is 600°C or higher, since carbonates do not decompose and oxides become unstable at 1500°C or higher. Good degree range.
以上のように、この発明によれば、酸化物超電導体用材
料のスラリーからドクターブレード法によりシートを作
成し、これをスリッターにてテープ状に切断するので、
その長尺化が容易であり、また、テープ状の焼結シート
の表面にガラス材を付着させ、これを焼結シートの可塑
化変形温度であり、かつ付着ガラス材の軟化温度以上の
温度で巻き取るので、焼結シートにガラスの絶縁被膜を
形成できるとともに、こわれ易い焼結シートをコイル状
に巻き取ることができる。このため、高い温度で運転で
きる超電導マグネット用のコイルを得ることができる。As described above, according to the present invention, a sheet is created from a slurry of an oxide superconductor material by the doctor blade method, and this is cut into tape shapes with a slitter.
It is easy to make the tape-shaped sintered sheet into a long length, and the glass material is attached to the surface of the tape-shaped sintered sheet at a temperature that is the plasticization deformation temperature of the sintered sheet and higher than the softening temperature of the attached glass material. Since it is rolled up, a glass insulating coating can be formed on the sintered sheet, and the fragile sintered sheet can be rolled up into a coil shape. Therefore, a coil for a superconducting magnet that can be operated at high temperatures can be obtained.
４、図面の？ｉ！１１１Ｌな説明
第１図はこの発明の実施例において使用する酸化物超電
導コイルの製造装置の模式図である。4. What about the drawings? i! 111L Description FIG. 1 is a schematic diagram of an oxide superconducting coil manufacturing apparatus used in an embodiment of the present invention.
１はスラリー、２は成形用フィルム、３はドクターブレ
ード、４はシート乾燥炉、５は成形シート、６はスリッ
ター、７は焼成炉、８はガラス溶融タンク窯、１０は巻
取り炉、１！は巻取りコイルである。1 is a slurry, 2 is a forming film, 3 is a doctor blade, 4 is a sheet drying furnace, 5 is a forming sheet, 6 is a slitter, 7 is a firing furnace, 8 is a glass melting tank kiln, 10 is a winding furnace, 1! is a wound coil.
Claims (5)
配合された酸化物、硝酸塩及び炭酸塩のうちいずれか一
種以上の粉末またはすでに超電導性を有する酸化物粉末
と樹脂バインダーと可塑剤と有機溶剤とより成るスラリ
ーから、ドクターブレード法にてシートを作成し、この
シートをテープ状にスリットしたのち焼成してテープ状
の焼結シートとなし、この焼結シートの表面にガラス材
を付着させ、これを焼結シートの可塑化変形温度であり
、かつ付着ガラス材の軟化温度以上の温度でコイル状に
巻き取ることを特徴とする酸化物超電導コイルの製造方
法。(1) Powder of any one or more of oxides, nitrates, and carbonates blended so that an oxide superconductor is produced by firing, or an oxide powder that already has superconductivity, a resin binder, a plasticizer, and an organic A sheet is created using the doctor blade method from a slurry consisting of a solvent, this sheet is slit into a tape shape, and then fired to form a tape-shaped sintered sheet, and a glass material is attached to the surface of this sintered sheet. A method for producing an oxide superconducting coil, which comprises winding the sintered sheet into a coil at a temperature that is the plasticization deformation temperature of the sintered sheet and higher than the softening temperature of the attached glass material.
℃の温度でシートを焼成することを特徴とする特許請求
の範囲第１項に記載の酸化物超電導コイルの製造方法。(2) From 600℃ to 1500℃ in an atmosphere containing oxygen
The method for manufacturing an oxide superconducting coil according to claim 1, characterized in that the sheet is fired at a temperature of .degree.
含む元素から成る酸化物で、Ｍ＿１はIII＿ａ族元素、
Ｍ＿２はII＿ａ族元素であることを特徴とする特許請求
の範囲第１項または第２項に記載の酸化物超電導コイル
の製造方法。(3) The oxide superconductor is an oxide consisting of elements including M_1, M_2, Cu, and O, where M_1 is a group III_a element,
3. The method for manufacturing an oxide superconducting coil according to claim 1 or 2, wherein M_2 is a group II_a element.
、Ｈｏ、Ｅｒ、Ｓｍ、Ｔｍ及びＳｃのいずれか一種以上
であることを特徴とする特許請求の範囲第３項に記載の
酸化物超電導コイルの製造方法。(4) Group III_a elements are La, Y, Yb, Ce, Pr
, Ho, Er, Sm, Tm, and Sc, the method for manufacturing an oxide superconducting coil according to claim 3.
ずれか一種以上からなることを特徴とする特許請求の範
囲第３項に記載の酸化物超電導コイルの製造方法。(5) The method for manufacturing an oxide superconducting coil according to claim 3, wherein the II_a group element consists of one or more of Sr, Ba, Ca, and Mg.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13362087A JPS63299209A (en) | 1987-05-29 | 1987-05-29 | Manufacture of oxide superconducting coil |
| DE3853444T DE3853444D1 (en) | 1987-05-15 | 1988-05-11 | Process for the production of a superconducting oxide. |
| EP88107555A EP0291034B1 (en) | 1987-05-15 | 1988-05-11 | Method for producing oxide superconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13362087A JPS63299209A (en) | 1987-05-29 | 1987-05-29 | Manufacture of oxide superconducting coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63299209A true JPS63299209A (en) | 1988-12-06 |
Family
ID=15109076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13362087A Pending JPS63299209A (en) | 1987-05-15 | 1987-05-29 | Manufacture of oxide superconducting coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63299209A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100720057B1 (en) | 2005-07-06 | 2007-05-18 | 학교법인 한국산업기술대학 | Superconduction Magnet And Manufacturing Method For Persistent Current |
-
1987
- 1987-05-29 JP JP13362087A patent/JPS63299209A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100720057B1 (en) | 2005-07-06 | 2007-05-18 | 학교법인 한국산업기술대학 | Superconduction Magnet And Manufacturing Method For Persistent Current |
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