JPS643059A - Production of superconducting material - Google Patents

Production of superconducting material

Info

Publication number
JPS643059A
JPS643059A JP63067657A JP6765788A JPS643059A JP S643059 A JPS643059 A JP S643059A JP 63067657 A JP63067657 A JP 63067657A JP 6765788 A JP6765788 A JP 6765788A JP S643059 A JPS643059 A JP S643059A
Authority
JP
Japan
Prior art keywords
calcined
blend
superconducting material
oxides
perovskite
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
JP63067657A
Other languages
Japanese (ja)
Other versions
JPH013059A (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 JP63-67657A priority Critical patent/JPH013059A/en
Priority claimed from JP63-67657A external-priority patent/JPH013059A/en
Publication of JPS643059A publication Critical patent/JPS643059A/en
Publication of JPH013059A publication Critical patent/JPH013059A/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, Lu 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, Lu 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 sintered blend is pulverized to <=5mum, especially <=3mum average particle diameter and subsequently pressed at 60-80% relative density. The above-mentioned pressed compact is then normally calcined at a tempera ture 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.
JP63-67657A 1987-03-22 1988-03-22 Method for manufacturing superconducting materials Pending JPH013059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63-67657A JPH013059A (en) 1987-03-22 1988-03-22 Method for manufacturing superconducting materials

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-66207 1987-03-22
JP6620787 1987-03-22
JP63-67657A JPH013059A (en) 1987-03-22 1988-03-22 Method for manufacturing superconducting materials

Publications (2)

Publication Number Publication Date
JPS643059A true JPS643059A (en) 1989-01-06
JPH013059A JPH013059A (en) 1989-01-06

Family

ID=

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5690343A (en) * 1995-09-05 1997-11-25 Nippon Gasket Co., Ltd. Metal gasket
US5791659A (en) * 1995-10-09 1998-08-11 Nippon Gasket Co., Ltd. Metal gasket
US6220606B1 (en) 1991-11-26 2001-04-24 Nippon Gasket Co., Ltd. Metallic gasket

Citations (6)

* 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
JPS63225527A (en) * 1987-03-12 1988-09-20 Nippon Telegr & Teleph Corp <Ntt> Superconductive material
JPS63230526A (en) * 1987-03-18 1988-09-27 Kazuo Fueki Compound superconductor and production thereof

Patent Citations (6)

* 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
JPS63225527A (en) * 1987-03-12 1988-09-20 Nippon Telegr & Teleph Corp <Ntt> Superconductive material
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220606B1 (en) 1991-11-26 2001-04-24 Nippon Gasket Co., Ltd. Metallic gasket
US5690343A (en) * 1995-09-05 1997-11-25 Nippon Gasket Co., Ltd. Metal gasket
US5791659A (en) * 1995-10-09 1998-08-11 Nippon Gasket Co., Ltd. Metal gasket

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