Method of preparing YBa.sub.2 Cu.sub.3 O.sub.7 powder for forming by drawing-lamination
US5334557A · kind A · utility
0Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Mar 3, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/742
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of preparing a powder of YBaCuO [phase 123] suitable for forming by drawing-lamination, which includes: PA0 preparing a powdered reactive mixture of precursors of purity greater than 99% and with a stoichiometry accurate to within less than 1%, PA0 binding this powdered reactive mixture to form intermediate pieces less than two millimeters in thickness which are placed in an oven so that their contact with a support is as small as possible, PA0 a heat treating the intermediate pieces, PA0 dry grinding the intermediate pieces to obtain grains of said powder with an average diameter of the order of a few .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.