JPS643014A - Superconducting material and production thereof - Google Patents
Superconducting material and production thereofInfo
- Publication number
- JPS643014A JPS643014A JP63073964A JP7396488A JPS643014A JP S643014 A JPS643014 A JP S643014A JP 63073964 A JP63073964 A JP 63073964A JP 7396488 A JP7396488 A JP 7396488A JP S643014 A JPS643014 A JP S643014A
- Authority
- JP
- Japan
- Prior art keywords
- periodic table
- elements
- temperature
- powder
- particle diameter
- 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
Links
- 239000000463 material Substances 0.000 title abstract 7
- 239000013078 crystal Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 230000000737 periodic effect Effects 0.000 abstract 3
- 239000000843 powder Substances 0.000 abstract 3
- 230000008018 melting Effects 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
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)
- Oxygen, Ozone, And Oxides In General (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
PURPOSE:To obtain the titled material having high superconductive critical temperature and excellent stability and useful for power storage, radiation, etc., by baking a mixture of compounds of specific elements and sintering the baked material at a temperature e.g. below the melting point of the powder of the baked material. CONSTITUTION:Powders of oxide, hydroxide, etc., of Ba, Y and Cu, etc., having an average particle diameter of <=20mum are mixed with each other and the mixture is prebaked at 700-1,000 deg.C, crushed and formed. The formed material is sintered at a temperature below the melting point (Tm) of the powder of the formed material and above Tm-100 deg.C. The sintered product is quenched to obtain an oxyfluoride superconducting material having an average crystal particle diameter of <=30mum and having a crystal structure of e.g. perovskite crystal having a composition of formula (A is group IIa element of the periodic table; B is one or more elements selected from Be, Mg, Ca, Sr and Pb; C is group IIIa element of the periodic table; D is an element selected from the groups Ib, IIb, IIIb and VIIIa elements of the periodic table; E is oxygen; x is 0.1-0.9; y is 0.4-1.0; 1<=z<=5; w is 0.01-0.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63073964A JPS643014A (en) | 1987-03-28 | 1988-03-28 | Superconducting material and production thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7496587 | 1987-03-28 | ||
| JP62-74965 | 1987-03-28 | ||
| JP63073964A JPS643014A (en) | 1987-03-28 | 1988-03-28 | Superconducting material and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH013014A JPH013014A (en) | 1989-01-06 |
| JPS643014A true JPS643014A (en) | 1989-01-06 |
Family
ID=26415111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63073964A Pending JPS643014A (en) | 1987-03-28 | 1988-03-28 | Superconducting material and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643014A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256516A (en) * | 1987-04-13 | 1988-10-24 | Agency Of Ind Science & Technol | Production of oxide superconductor |
| US5166474A (en) * | 1988-09-02 | 1992-11-24 | Semiconductor Energy Laboratory Co., Ltd. | Superconducting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63224113A (en) * | 1987-03-11 | 1988-09-19 | Matsushita Electric Ind Co Ltd | Superconductor |
| JPS63225531A (en) * | 1987-03-13 | 1988-09-20 | Nippon Telegr & Teleph Corp <Ntt> | Oxide superconductive material |
-
1988
- 1988-03-28 JP JP63073964A patent/JPS643014A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63224113A (en) * | 1987-03-11 | 1988-09-19 | Matsushita Electric Ind Co Ltd | Superconductor |
| JPS63225531A (en) * | 1987-03-13 | 1988-09-20 | Nippon Telegr & Teleph Corp <Ntt> | Oxide superconductive material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256516A (en) * | 1987-04-13 | 1988-10-24 | Agency Of Ind Science & Technol | Production of oxide superconductor |
| US5166474A (en) * | 1988-09-02 | 1992-11-24 | Semiconductor Energy Laboratory Co., Ltd. | Superconducting device |
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