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1. WO1990008389 - METHOD OF PRODUCING CERAMIC-TYPE SUPERCONDUCTIVE WIRE

Publication Number WO/1990/008389
Publication Date 26.07.1990
International Application No. PCT/JP1990/000022
International Filing Date 11.01.1990
IPC
C04B 35/45 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
45based on copper oxide or solid solutions thereof with other oxides
H01L 39/24 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
39Devices using superconductivity or hyperconductivity; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof
24Processes or apparatus specially adapted for the manufacture or treatment of devices provided for in group H01L39/135
CPC
C04B 35/4521
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
35Shaped ceramic products characterised by their composition
01based on oxide ceramics
45based on copper oxide or solid solutions thereof with other oxides
4521containing bismuth oxide
C04B 35/4525
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
35Shaped ceramic products characterised by their composition
01based on oxide ceramics
45based on copper oxide or solid solutions thereof with other oxides
4521containing bismuth oxide
4525also containing lead oxide
H01L 39/248
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
39Devices using superconductivity; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof
24Processes or apparatus peculiar to the manufacture or treatment of devices provided for in H01L39/00 or of parts thereof
2419the superconducting material comprising copper oxide
248Processes peculiar to the manufacture or treatment of filaments or composite wires
Y10S 505/74
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
505Superconductor technology: apparatus, material, process
725Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
739Molding, coating, shaping, or casting of superconducting material
74To form wire or fiber
Y10S 505/742
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
505Superconductor technology: apparatus, material, process
725Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
742Annealing
Y10T 29/49014
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
29Metal working
49Method of mechanical manufacture
49002Electrical device making
49014Superconductor
Applicants
  • SUMITOMO ELECTRIC INDUSTRIES, LTD. [JP]/[JP] (AllExceptUS)
  • HAYASHI, Kazuhiko [JP]/[JP] (UsOnly)
  • NONOYAMA, Hisao [JP]/[JP] (UsOnly)
Inventors
  • HAYASHI, Kazuhiko
  • NONOYAMA, Hisao
Agents
  • FUKAMI, Hisao
Priority Data
1/663814.01.1989JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD OF PRODUCING CERAMIC-TYPE SUPERCONDUCTIVE WIRE
(FR) PROCEDE DE PRODUCTION D'UN CABLE SUPRACONDUCTEUR DU TYPE CERAMIQUE
Abstract
(EN)
In order to obtain a ceramic-type superconductive wire, a bulky ceramic-type superconductor or a precursor thereof that is pretreated such that the crystalline structure is oriented is charged into a metallic pipe, subjected to the working for decreasing the diameter so as to be elongated, and is heat-treated. In the thus obtained superconductive wire, the bulk consisting of the superconductor or the precursor thereof maintains the crystalline orientation. Namely, there is obtained a superconductive wire having a high critical current density. In order to further increase the critical current density, it is desirable to repeat the step for decreasing the diameter and the step of heat treatment alternatingly plural times.
(FR)
Afin d'obtenir un câble supraconducteur du type céramique, on charge dans une conduite métallique un supraconducteur du type céramique volumineux ou un précurseur de ce supraconducteur, qui est traité d'avance de sorte que la structure cristalline soit orientée, on usine ledit supraconducteur pour en diminuer le diamètre et en provoquer l'allongement, et on le soumet à un traitement thermique. Dans le câble supraconducteur ainsi obtenu, le volume constitué par le supraconducteur ou son précurseur maintient l'orientation cristalline. Ce câble présente en outre une forte densité de courant critique. Afin d'accroître encore davantage la densité de courant critique, il est souhaitable de répéter l'étape consistant à diminuer le diamètre et l'étape de traitement thermique en les alternant plusieurs fois.
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