JPS6483516A - Superconducting ceramic powder - Google Patents
Superconducting ceramic powderInfo
- Publication number
- JPS6483516A JPS6483516A JP62238628A JP23862887A JPS6483516A JP S6483516 A JPS6483516 A JP S6483516A JP 62238628 A JP62238628 A JP 62238628A JP 23862887 A JP23862887 A JP 23862887A JP S6483516 A JPS6483516 A JP S6483516A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- surface area
- specific surface
- thin film
- superconducting ceramic
- 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
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
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
PURPOSE:To contrive to improve sintering properties and to enable production of a superconducting ceramic having high density and high critical current density in the titled powder of A (rare earth element)-B (alkaline earth metal element)-Cu oxide system, by making the powder have a specific surface area in a specific range. CONSTITUTION:In superconducting ceramic powder shown by the general formula by AxByCu3O7-delta, having a layer perovskite structure of oxygen deficient type, the specific surface area is 3-15m<2>/g. With the proviso that in the formula, A is rare earth element B is alkaline earth metallic element, x=0.8-1.2, y=1.6-2.4 and 7-delta shows that number of O atoms is somewhat smaller than seven. Powder having <3m<2>/g specific surface area has bad sintering properties, a low critical current density, has difficulty in forming a thin film and provides a thin film having low strength. On the other hand, since powder having >15m<2>/g specific surface area is liable to cause secondary aggregation, the powder has poor moldability and has difficulty in forming a thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62238628A JPS6483516A (en) | 1987-09-25 | 1987-09-25 | Superconducting ceramic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62238628A JPS6483516A (en) | 1987-09-25 | 1987-09-25 | Superconducting ceramic powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6483516A true JPS6483516A (en) | 1989-03-29 |
Family
ID=17032971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62238628A Pending JPS6483516A (en) | 1987-09-25 | 1987-09-25 | Superconducting ceramic powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6483516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180920A (en) * | 1991-03-20 | 1993-01-19 | Fujitsu Limited | Method and apparatus for making charged particle beam exposure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239147A (en) * | 1987-03-26 | 1988-10-05 | Sumitomo Electric Ind Ltd | Production of superconductive material |
-
1987
- 1987-09-25 JP JP62238628A patent/JPS6483516A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239147A (en) * | 1987-03-26 | 1988-10-05 | Sumitomo Electric Ind Ltd | Production of superconductive material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180920A (en) * | 1991-03-20 | 1993-01-19 | Fujitsu Limited | Method and apparatus for making charged particle beam exposure |
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