Method of making flowable tungsten/copper composite powder
US5897962A · kind A · utility
7Cited by
16References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 13, 1995 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Jul 13, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12181
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A method of making flowable tungsten/copper composite powder by milling an aqueous slurry of a mixture of the desired weight ratio of tungsten powder and copper oxide powder and, optionally, a small amount of cobalt powder, spray-drying the slurry to form spherical, flowable agglomerates, and reducing the agglomerates in a hydrogen atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.