Sr.sub.2 (Bi.sub.1-a Pba).sub.x Cu.sub.y O.sub.z metal oxide material
US5019553A · kind A · utility
7Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1988 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Dec 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/782
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metal oxide material is provided which is represented by the composition formula: EQU A.sub.2 B.sub.x Cu.sub.y O.sub.z wherein 2.ltoreq.x.ltoreq.3.5, 2.ltoreq.y.ltoreq.3.5, x+y>4, and 4<z; A is an element or a group of elements selected from alkaline earth metal elements; and B is an element or a group of elements selected from the group of elements consisting of bismuth, lead and thallium. The material has a superconductivity transition temperature of from 4.2K to 12K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.