JPH03290318A - Oxide superconductor and production thereof - Google Patents

Oxide superconductor and production thereof

Info

Publication number
JPH03290318A
JPH03290318A JP2089617A JP8961790A JPH03290318A JP H03290318 A JPH03290318 A JP H03290318A JP 2089617 A JP2089617 A JP 2089617A JP 8961790 A JP8961790 A JP 8961790A JP H03290318 A JPH03290318 A JP H03290318A
Authority
JP
Japan
Prior art keywords
composition
magnetic field
applying
current density
calcined
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
Application number
JP2089617A
Other languages
Japanese (ja)
Inventor
Keiji Sumiya
Hideji Kuwajima
Shuichiro Shimoda
Toranosuke Ashizawa
Shozo Yamana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP2089617A priority Critical patent/JPH03290318A/en
Priority claimed from US07/679,318 external-priority patent/US5238911A/en
Publication of JPH03290318A publication Critical patent/JPH03290318A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Abstract

PURPOSE: To suppress deterioration in the critical current density in applying a magnetic field thereto by weighing respective raw materials containing Bi, Sr, Ca, Mg, Ba and Cu so as to provide the composition of a specific composition formula, mixing the raw materials, calcining the resultant mixture, pulverizing the calcined mixture, further forming the powder and burning the formed compact.
CONSTITUTION: Respective prescribed amounts of raw material powders such as Bi2O3, SrCO3, MgO, CaCO3, BaCO3 and CuO containing Bi, Sr, Mg, Ca, Ba and Cu are are weighed and wet mixed in a solvent such as methanol. The resultant mixture is then calcined at a temperature within the range of 780-830°C, pulverized, formed and subsequently burned at a temperature within the range of 820-870°C in air or an atmosphere with 1-20vol.% O2 content under a low O2 pressure to afford the objective oxide superconductor composed of the composition expressed by the formula (A is 0.6-1.3; B is 0.3-0.9; C is 0.01-0.3 and D is 0.01-0.3 expressed in terms of atomic ratio) with hardly any deterioration in the critical current density in applying a magnetic field thereto.
COPYRIGHT: (C)1991,JPO&Japio
JP2089617A 1990-04-04 1990-04-04 Oxide superconductor and production thereof Pending JPH03290318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2089617A JPH03290318A (en) 1990-04-04 1990-04-04 Oxide superconductor and production thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2089617A JPH03290318A (en) 1990-04-04 1990-04-04 Oxide superconductor and production thereof
US07/679,318 US5238911A (en) 1990-04-04 1991-04-02 Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O
EP91302995A EP0450966B1 (en) 1990-04-04 1991-04-04 Oxide superconductor and process for production thereof
DE69114164T DE69114164T2 (en) 1990-04-04 1991-04-04 Superconducting oxide and process for its production.

Publications (1)

Publication Number Publication Date
JPH03290318A true JPH03290318A (en) 1991-12-20

Family

ID=13975714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2089617A Pending JPH03290318A (en) 1990-04-04 1990-04-04 Oxide superconductor and production thereof

Country Status (1)

Country Link
JP (1) JPH03290318A (en)

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