JPS6476902A - Perovskite-type superconductor and superconducting member - Google Patents

Perovskite-type superconductor and superconducting member

Info

Publication number
JPS6476902A
JPS6476902A JP62206359A JP20635987A JPS6476902A JP S6476902 A JPS6476902 A JP S6476902A JP 62206359 A JP62206359 A JP 62206359A JP 20635987 A JP20635987 A JP 20635987A JP S6476902 A JPS6476902 A JP S6476902A
Authority
JP
Japan
Prior art keywords
group
oxygen
perovskite
superconductor
valence
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.)
Granted
Application number
JP62206359A
Other languages
Japanese (ja)
Other versions
JP2880163B2 (en
Inventor
Tetsuya Ogushi
Yoshinori Shiraku
Hisanao Ogata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP62206359A priority Critical patent/JP2880163B2/en
Priority to EP88303270A priority patent/EP0287325B1/en
Priority to DE3850800T priority patent/DE3850800T2/en
Priority to US07/181,097 priority patent/US4892862A/en
Publication of JPS6476902A publication Critical patent/JPS6476902A/en
Priority to US07/727,310 priority patent/US5183799A/en
Application granted granted Critical
Publication of JP2880163B2 publication Critical patent/JP2880163B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

  • Inorganic Compounds Of Heavy Metals (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

PURPOSE:To produce an excellent perovskite-type superconductor having high superconducting transition temperature, by using a group Ia metallic element, a group IIa element, a group IVa element and oxygen as main components. CONSTITUTION:The objective oxide superconducting material is composed mainly of (1) the 1st element L selected from group Ia metallic element (Li, Na or K) and group IIIa element (Sc, Y or La), (2) the 2nd element A selected from group IIa element (Ba, Sr or Ca), (3) the 3rd element M selected from group IVa element (Ti, Zr or Hf) and group Va element (V, Nb or Ta) and (4) oxygen and expressed by chemical formula (LxA1-x)iMOy wherein x is 0<x<1, i is 1, 3/2 or 2 and y is 0<y<=3 when i=1 and 0<y<=4 when i=3/2 or 2. The sum of the valence of the 1st element L (x) and the sum of the valence of oxygen (y) preferably satisfy the relationship ¦x¦=¦y¦+ or -0.5. Preferably a bivalent state is included in the takable valance of the 3rd element M. A superconductor having a superconducting transition temperature of about >=150 deg.K can be produced by this process.
JP62206359A 1987-04-13 1987-08-21 Perovskite type superconducting member Expired - Lifetime JP2880163B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62206359A JP2880163B2 (en) 1987-05-18 1987-08-21 Perovskite type superconducting member
EP88303270A EP0287325B1 (en) 1987-04-13 1988-04-12 Superconducting material and process for producing the same
DE3850800T DE3850800T2 (en) 1987-04-13 1988-04-12 Superconducting material and process for its production.
US07/181,097 US4892862A (en) 1987-04-13 1988-04-13 Process for producing superconducting material
US07/727,310 US5183799A (en) 1987-04-13 1991-07-10 Superconducting materials including La-Sr-Nb-O, Y-Ba-Nb-O, La-Sr-Nb-Cu-O, and Y-Ba-Nb-Cu-O

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-118846 1987-05-18
JP11884687 1987-05-18
JP62206359A JP2880163B2 (en) 1987-05-18 1987-08-21 Perovskite type superconducting member

Publications (2)

Publication Number Publication Date
JPS6476902A true JPS6476902A (en) 1989-03-23
JP2880163B2 JP2880163B2 (en) 1999-04-05

Family

ID=26456700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62206359A Expired - Lifetime JP2880163B2 (en) 1987-04-13 1987-08-21 Perovskite type superconducting member

Country Status (1)

Country Link
JP (1) JP2880163B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01145329A (en) * 1987-11-30 1989-06-07 Kyocera Corp Oxide superconductor
JPH01157420A (en) * 1987-09-29 1989-06-20 Kyocera Corp Oxide superconductor and production thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155804A (en) * 1984-08-25 1986-03-20 京セラ株式会社 Dielectric porcelain composition
JPS63236748A (en) * 1987-03-25 1988-10-03 Mitsubishi Petrochem Co Ltd New superconducting material composition
JPS643015A (en) * 1987-03-28 1989-01-06 Sumitomo Electric Ind Ltd Superconducting material and production thereof
JPS643061A (en) * 1987-03-22 1989-01-06 Sumitomo Electric Ind Ltd Production of superconducting material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155804A (en) * 1984-08-25 1986-03-20 京セラ株式会社 Dielectric porcelain composition
JPS643061A (en) * 1987-03-22 1989-01-06 Sumitomo Electric Ind Ltd Production of superconducting material
JPS63236748A (en) * 1987-03-25 1988-10-03 Mitsubishi Petrochem Co Ltd New superconducting material composition
JPS643015A (en) * 1987-03-28 1989-01-06 Sumitomo Electric Ind Ltd Superconducting material and production thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01157420A (en) * 1987-09-29 1989-06-20 Kyocera Corp Oxide superconductor and production thereof
JPH01145329A (en) * 1987-11-30 1989-06-07 Kyocera Corp Oxide superconductor

Also Published As

Publication number Publication date
JP2880163B2 (en) 1999-04-05

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