JPS643054A - Production of superconducting material - Google Patents

Production of superconducting material

Info

Publication number
JPS643054A
JPS643054A JP63067652A JP6765288A JPS643054A JP S643054 A JPS643054 A JP S643054A JP 63067652 A JP63067652 A JP 63067652A JP 6765288 A JP6765288 A JP 6765288A JP S643054 A JPS643054 A JP S643054A
Authority
JP
Japan
Prior art keywords
calcined
blend
compact
superconducting material
oxides
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
JP63067652A
Other languages
Japanese (ja)
Other versions
JPH013054A (en
Inventor
Kenichiro Shibata
Nobuyuki Sasaki
Chuichi Kobayashi
Hideo Itozaki
Shuji Yatsu
Tetsuji Jodai
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP63067652A priority Critical patent/JPS643054A/en
Publication of JPH013054A publication Critical patent/JPH013054A/en
Publication of JPS643054A publication Critical patent/JPS643054A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00—Superconducting devices
    • H10N60/80—Constructional details
    • H10N60/85—Superconducting active materials
    • H10N60/855—Ceramic superconductors
    • H10N60/857—Ceramic superconductors comprising copper oxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Superconductor Devices And Manufacturing Methods Thereof (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

PURPOSE:To obtain a superconducting material, consisting of perovskite-type oxides, capable of utilizing liquid N2 as a cooling medium and having the high critical temperature (TC), by blending oxides and salts of Ba, Yb and Cu previ ously calcining the blend, pulverizing the calcined blend, pressing the resultant pulverized blend and normally sintering the obtained pressed compact at a temperature within a specific range. CONSTITUTION:Powders of oxides, carbonates, sulfates or nitrates of Ba, Yb and Cu having respective <=20mum, especially <=5mum average particle diameter are blended. The resultant blended powder is then previously calcined at 700-1,000 deg.C and the calcined blend is pulverized to <=5mum, especially <=3mum average particle diameter and subsequently molded at 60-80% relative density. The above-mentioned molded compact is then normally sintered at a temperature within the range of (melting point of the aforementioned calcined compact) - (melting point of the above-mentioned calcined compact -100 deg.C). Thereby the aimed superconducting material consisting of perovskite-type or pseudo- perovskite-type oxides, expressed by the formula and having <=10mum average crystal grain diameter is obtained. The aforementioned superconducting material has the high TC and TCF and characteristics thereof stabilized for a long period.
JP63067652A 1987-03-22 1988-03-22 Production of superconducting material Pending JPS643054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63067652A JPS643054A (en) 1987-03-22 1988-03-22 Production of superconducting material

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6620287 1987-03-22
JP62-66202 1987-03-22
JP63067652A JPS643054A (en) 1987-03-22 1988-03-22 Production of superconducting material

Publications (2)

Publication Number Publication Date
JPH013054A JPH013054A (en) 1989-01-06
JPS643054A true JPS643054A (en) 1989-01-06

Family

ID=26407371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63067652A Pending JPS643054A (en) 1987-03-22 1988-03-22 Production of superconducting material

Country Status (1)

Country Link
JP (1) JPS643054A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299490A (en) * 1991-03-20 1994-04-05 Alcan Deutschland Gmbh Piston with flush connecting wall sections at pin boss surface
US6357341B1 (en) 1998-04-24 2002-03-19 Unisia Jecs Corporation Piston of internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173885A (en) * 1984-02-18 1985-09-07 Nippon Telegr & Teleph Corp <Ntt> Superconductive material of oxide and manufacture thereof
JPS6122511A (en) * 1984-07-09 1986-01-31 三菱電機株式会社 Method of producing pbmo6s8 compound superconductive wire blank
JPS63222067A (en) * 1987-03-09 1988-09-14 Shoichi Hosoya High-temperature superconducting substance and production thereof
JPS63225531A (en) * 1987-03-13 1988-09-20 Nippon Telegr & Teleph Corp <Ntt> Oxide superconductive material
JPS63230526A (en) * 1987-03-18 1988-09-27 Kazuo Fueki Compound superconductor and production thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173885A (en) * 1984-02-18 1985-09-07 Nippon Telegr & Teleph Corp <Ntt> Superconductive material of oxide and manufacture thereof
JPS6122511A (en) * 1984-07-09 1986-01-31 三菱電機株式会社 Method of producing pbmo6s8 compound superconductive wire blank
JPS63222067A (en) * 1987-03-09 1988-09-14 Shoichi Hosoya High-temperature superconducting substance and production thereof
JPS63225531A (en) * 1987-03-13 1988-09-20 Nippon Telegr & Teleph Corp <Ntt> Oxide superconductive material
JPS63230526A (en) * 1987-03-18 1988-09-27 Kazuo Fueki Compound superconductor and production thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299490A (en) * 1991-03-20 1994-04-05 Alcan Deutschland Gmbh Piston with flush connecting wall sections at pin boss surface
US6357341B1 (en) 1998-04-24 2002-03-19 Unisia Jecs Corporation Piston of internal combustion engine

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