Method for the preparation of thallium-containing superconducting materials by precipitation
US5001107A · kind A · utility
5Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Aug 2, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/783
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention provides improved methods for the preparation of precursor powders that are used in the preparation of superconducting ceramic materials that contain thallium. A first solution that contains the hydrogen peroxide and metal cations, other than thallium, that will be part of the ceramic is quickly mixed with a second solution that contains precipitating anions and thallium (I) to form a precipitate which is dried to yield precursor powders. The precursor powders are calcined an sintered to produce superconducting materials that contain thallium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.