Substituted YiBa.sub.2 Cu.sub.3 oxide superconductor
US5108986A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Aug 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/781
Abstract
The invention relates to a superconductor manufacturing method and a superconductor manufactured by the method. More particularly, the invention is concerned wih an oxide superconductor of lamellar perovskite type and a method of manufacturing the same having extemely high critical temperature and critical current density as compared with conventional alloy superconductors or intermetallic compound superconductos. The superconductor is expressed by EQU A-B-Cu-O where PA0 A represents at least one of elements of the group IIIa in the periodic table; and PA0 B represents at least one of elements of the group IIa in the periodic table, wherein at least one A and B consists of two elements belonging to the same group. The superconductor is manufactured by the steps of: PA0 (a) mixing powder of a compound containing at least one of elements of the group IIIa in the periodic table, powder of a compound containing at least one of elements of the group IIa in the periodic table, powder of a compound containing a homologous element of at least one of elements of the groups IIIa and IIa in the periodic table, and powder of copper oxide with each other in such a manner that a ratio in number …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.