JPS643060A - Production of superconducting material - Google Patents
Production of superconducting materialInfo
- Publication number
- JPS643060A JPS643060A JP63067658A JP6765888A JPS643060A JP S643060 A JPS643060 A JP S643060A JP 63067658 A JP63067658 A JP 63067658A JP 6765888 A JP6765888 A JP 6765888A JP S643060 A JPS643060 A JP S643060A
- 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
Links
- 239000000463 material Substances 0.000 title abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 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)
- 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, Y and Cu, previous ly 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, Y 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 pressed at 60-80% relative density. The above-mentioned pressed compact is then normally sintered 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 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-67658A JPH013060A (en) | 1987-03-22 | 1988-03-22 | Method for manufacturing superconducting materials |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-66208 | 1987-03-22 | ||
| JP6620887 | 1987-03-22 | ||
| JP63-67658A JPH013060A (en) | 1987-03-22 | 1988-03-22 | Method for manufacturing superconducting materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS643060A true JPS643060A (en) | 1989-01-06 |
| JPH013060A JPH013060A (en) | 1989-01-06 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157417A (en) * | 1987-12-11 | 1989-06-20 | Matsushita Electric Ind Co Ltd | Superconductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157417A (en) * | 1987-12-11 | 1989-06-20 | Matsushita Electric Ind Co Ltd | Superconductor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS643061A (en) | Production of superconducting material | |
| JPS643059A (en) | Production of superconducting material | |
| JPS643055A (en) | Production of superconducting material | |
| JPS643057A (en) | Production of superconducting material | |
| JPS643056A (en) | Production of superconducting material | |
| JPS643053A (en) | Production of superconducting material | |
| JPS643058A (en) | Production of superconducting material | |
| JPS643054A (en) | Production of superconducting material | |
| JPS6476949A (en) | Production of superconducting substance | |
| JP3461654B2 (en) | Manufacturing method of oxide superconductor | |
| JPH0234516A (en) | Production of tl-ba-ca-cu-o type superconducting ceramics | |
| JPS6437458A (en) | Superconducting ceramics composition | |
| JPS643051A (en) | Production of superconducting material | |
| JPH02208225A (en) | Oxide superconductor | |
| JPS6476956A (en) | Superconducting material having high critical temperature and production thereof | |
| Haertling et al. | Development of High Tc(Greater Than 110 K) Bismuth, Thallium and Yttrium-Based Materials as Superconducting Circuit Elements. Semiannual Report, February-October 1991 | |
| JPS6476955A (en) | Superconducting material having high critical temperature and production thereof | |
| JPH0397656A (en) | Oxide superconductor composition | |
| JPS6428267A (en) | Oxide superconducting composition | |
| JPS6428269A (en) | Oxide superconducting composition | |
| JPS6452612A (en) | Oxide superconductor having high sinterability | |
| JPH01111721A (en) | Production of oxide superconductor | |
| JPH0251425A (en) | Oxide superconductor | |
| JPS6476950A (en) | Production of superconducting substance | |
| JPS6428266A (en) | Superconducting material having high critical temperature and production thereof |