EP0283024A2
Expired / Lapsed
EP
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Method of manufacturing a ceramic superconductor
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1988-03-17
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Granted: —
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Expires: 2008-03-17
Abstract
Abstract A method of manufacturing a superconductive conductor containing a ceramics superconductive material being in composition generally expressed by a formula AaBbCc, where A represents at least a sort of element selected from a group of those belonging to the groups Ia, IIa and IIIa of the periodic table, B represents at least a single sort of element selected from a group of those belonging to the groups Ib, IIb and IIIb of the periodic table, C represents at least a single sort of element selected from a group of oxygen, carbon, nitrogen, fluorine and sulfur and a, b and c represent numbers showing composition ratios of A, B and C respectively, comprises a step of melting a material generally expressed by a formula AaBb, a step of continuously drawing out a melt (3) of AaBb from a hole provided in a frame (4), a step of solidifying the AaBb melt drawn out from the hole and a step of heating a solidified body of AaBb in an atmosphere containing C.
Inventors
- 👤 Hajime C/O Osaka Works Sumitomo El. Hitotsuyanagi
- 👤 Kazuo C/O Osaka Works Of Sumitomo El.Ind. Sawada
- 👤 Kengo C/O Osaka Works Of Sumitomo El.Ind. Ohkura
- 👤 Yoshihiro C/O Osaka Works Of Sumitomo El. Nakai
- 👤 Kazuhiko C/O Osaka Works Of Sumitomo El. Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 08:40
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/80; H10N60/85; H10N60/855; C; C04; C04B; C04B35/00; C04B35/01; C04B35/45; C04B35/4504; C04B35/4512; C04B35/4521; C04B35/622; C04B35/64; C04B35/65; H10N60/01; H10N60/0268; H10N60/0801; H10N60/857; Y; Y10; Y10S; Y10S505/00; Y10S505/725; Y10S505/739; Y10S505/74
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
98 words
A method of manufacturing a superconductive conductor formed by a ceramics superconductive material comprising first and second components, said first component comprising a plurality of metallic elements, and said second component comprising at least one non-metallic element, said method comprising: a step of melting said first component; a step of continuously drawing out a melt of said first component through a hole provided in a frame, a step of solidifying said first component melt drawn out from said hole; and a step of heating a solidified body of said first component in an atmosphere containing said second component.
Claim 2
Independent Claim
98 words
A method of manufacturing a superconductive conductor formed by a ceramics superconductive material comprising first and second components, said first component comprising a plurality of metallic elements, and said second component comprising at least one non-metallic element, said method comprising: a step of melting said first component; a step of continuously drawing out a melt of said first component through a hole provided in a frame, a step of solidifying said first component melt drawn out from said hole; and a step of heating a solidified body of said first component in an atmosphere containing said second component.
Claim 3
Independent Claim
186 words
A method of manufacturing a superconductive conductor formed by a ceramics superconductive material being in composition generally expressed by a formula AaBbCc, where A represents at least a single sort of element selected from a group of those belonging to the groups Ia, IIa and IIIa of the periodic table, B represents at least a single sort of element selected from a group of those belonging to the groups Ib, IIb and IIIb of the periodic table, C represents at least a single sort of element selected from a group of oxygen, carbon, nitrogen, fluorine and sulfur and a , b and c represent numbers showing composition ratios of A, B and C respectively, said method comprising: a step of melting a material generally expressed by a formula AaBb, where A, B, a and b represent those described above; a step of continuously drawing out a melt of said AaBb through a hole provided in a frame; a step of solidifying said AaBb melt drawn out from said hole; and a step of heating a solidified body of said AaBb in an atmosphere containing said C.
Claim 4
Independent Claim
186 words
A method of manufacturing a superconductive conductor formed by a ceramics superconductive material being in composition generally expressed by a formula AaBbCc, where A represents at least a single sort of element selected from a group of those belonging to the groups Ia, IIa and IIIa of the periodic table, B represents at least a single sort of element selected from a group of those belonging to the groups Ib, IIb and IIIb of the periodic table, C represents at least a single sort of element selected from a group of oxygen, carbon, nitrogen, fluorine and sulfur and a , b and c represent numbers showing composition ratios of A, B and C respectively, said method comprising: a step of melting a material generally expressed by a formula AaBb, where A, B, a and b represent those described above; a step of continuously drawing out a melt of said AaBb through a hole provided in a frame; a step of solidifying said AaBb melt drawn out from said hole; and a step of heating a solidified body of said AaBb in an atmosphere containing said C.
Claim 5
Dependent Claim
35 words
A method of manufacturing a superconductive conductor in accordance with claim 2, wherein said drawing out step comprises a step of heating said frame to a high temperature exceeding a melting point of said AaBb.
Claim 6
Dependent Claim
40 words
A method of manufacturing a superconductive conductor in accordance with claim 3, wherein said A contains at least two sorts of elements selected from said group of those belonging to the groups Ia, IIa and IIIa of the periodic table.
Claim 7
Dependent Claim
30 words
A method of manufacturing a superconductive conductor in accordance with claim 4, wherein at least copper is contained as said B and at least oxygen is contained as said C.
Claim 8
Dependent Claim
27 words
A method of manufacturing a superconductive conductor in accordance with claim 3, wherein said AaBb solidified body is either a unidirectional solidified member or a monocrystal body.
Claim 9
Dependent Claim
42 words
A method of manufacturing a superconductive conductor in accordance with claim 3, wherein said AaBb solidified body is brought into a prescribed temperature through heat in melting of said AaBb, to be coupled with said C in said atmosphere containing said C.
Claim 10
Dependent Claim
29 words
A method of manufacturing a superconductive conductor in accordance with claim 7, wherein said atmosphere containing said C is provided in continuation to said frame of a high temperature.
Claim 11
Dependent Claim
34 words
A method of manufacturing a superconductive conductor in accordance with claim 3, wherein said AaBb solidified body is re-heated to be coupled with said C under said atmosphere containing said C in this state.
Claim 12
Dependent Claim
35 words
A method of manufacturing a superconductive conductor in accordance with claim 2, wherein said solidifying step comprises a step of bringing said AaBb melt obtained said drawing out step into contact with a cooling medium.
Claim 13
Dependent Claim
30 words
A method of manufacturing a superconductive conductor in accordance with claim 10, wherein at least copper is contained as said B and at least oxygen is contained as said C.
Claim 14
Dependent Claim
19 words
A method of manufacturing a superconductive conductor in accordance with claim 10, wherein said cooling medium is a liquid.
Claim 15
Dependent Claim
23 words
A method of manufacturing a superconductive conductor in accordance with claim 10, wherein said AaBb solidified body is in amorphous structure after cooling/solidification.
Claim 16
Dependent Claim
28 words
A method of manufacturing a superconductive conductor in accordance with claim 10, wherein the outer diameter or thickness of said cooled/solidified substance is not more than 100 µm.
Claim 17
Dependent Claim
201 words
A superconductive conductor manufactured by a method of manufacturing a superconductive conductor formed by a ceramics superconductive material being in composition generally expressed by a formula AaBbCc, where A represents at least a single sort of element selected from a group of those belonging to the groups Ia, IIa and IIIa of the periodic table, B represents at least a single sort of element selected from a group of those belonging to the groups Ib, IIb and IIIb of the periodic table, C represents at least a single sort of element selected from a group of oxygen, carbon, nitrogen, fluorine and sulfur and a , b and c represent numbers showing composition ratios of A, B and C respectively, said method comprising: a step of melting a material generally expressed by a formula AaBb, where A, B, a and b represent those described above; a step of drawing out a melt of said AaBb through a hole provided in a frame of a high temperature exceeding a melting point of said AaBb; a step of solidifying said AaBb melt drawn out from said hole; and a step of heating a solidified body of said AaBb in an atmosphere containing said C.
Claim 18
Dependent Claim
201 words
A superconductive conductor manufactured by a method of manufacturing a superconductive conductor formed by a ceramics superconductive material being in composition generally expressed by a formula AaBbCc, where A represents at least a single sort of element selected from a group of those belonging to the groups Ia, IIa and IIIa of the periodic table, B represents at least a single sort of element selected from a group of those belonging to the groups Ib, IIb and IIIb of the periodic table, C represents at least a single sort of element selected from a group of oxygen, carbon, nitrogen, fluorine and sulfur and a , b and c represent numbers showing composition ratios of A, B and C respectively, said method comprising: a step of melting a material generally expressed by a formula AaBb, where A, B, a and b represent those described above; a step of drawing out a melt of said AaBb through a hole provided in a frame of a high temperature exceeding a melting point of said AaBb; a step of solidifying said AaBb melt drawn out from said hole; and a step of heating a solidified body of said AaBb in an atmosphere containing said C.
Claim 19
Dependent Claim
36 words
A superconductive conductor in accordance with claim 15, wherein said A contains at least two sorts of elements selected from said group of those belonging to the groups Ia, IIa and IIIa of the periodic table.
Claim 20
Dependent Claim
26 words
A superconductive conductor in accordance with claim 16, wherein at least copper is contained as said B and at least oxygen is contained as said C.
Claim 21
Dependent Claim
18 words
A superconductor in accordance with claim 17, wherein at least yttrium and barium are contained as said A.
Claim 22
Dependent Claim
188 words
A superconductive conductor manufactured by a method of manufacturing a superconductive conductor formed by a ceramics superconductive material being in composition generally expressed by a formula AaBbCc, where A represents at least a single sort of element selected from a group of those belonging to the groups Ia, IIa and IIIa of the periodic table, B represents at least a single sort of element selected from a group of those belonging to the groups Ib, IIb and IIIb of the periodic table, C represents at least a single sort of element selected from a group of oxygen, carbon, nitrogen, fluorine and sulfur and a , b and c represent numbers showing composition ratios of A, B and C respectively, said method comprising: a step of melting a material generally expressed by a formula AaBb, where A, B, a and b represent those described above; a step of drawing out a melt of said AaBb into a cooling medium from a hole provided in a frame to cool and solidify the same; and a step of heating a solidified body of said AaBb in an atmosphere containing said C.
Claim 23
Dependent Claim
188 words
A superconductive conductor manufactured by a method of manufacturing a superconductive conductor formed by a ceramics superconductive material being in composition generally expressed by a formula AaBbCc, where A represents at least a single sort of element selected from a group of those belonging to the groups Ia, IIa and IIIa of the periodic table, B represents at least a single sort of element selected from a group of those belonging to the groups Ib, IIb and IIIb of the periodic table, C represents at least a single sort of element selected from a group of oxygen, carbon, nitrogen, fluorine and sulfur and a , b and c represent numbers showing composition ratios of A, B and C respectively, said method comprising: a step of melting a material generally expressed by a formula AaBb, where A, B, a and b represent those described above; a step of drawing out a melt of said AaBb into a cooling medium from a hole provided in a frame to cool and solidify the same; and a step of heating a solidified body of said AaBb in an atmosphere containing said C.
Claim 24
Dependent Claim
26 words
A superconductive conductor in accordance with claim 19, wherein at least copper is contained as said B and at least oxygen is contained as said C.
Claim 25
Dependent Claim
19 words
A superconductive conductor in accordance with claim 20, wherein at least yttrium and barium are contained as said A.
References Cited (Backward Citations)
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