Method of making a cathode from tungsten and iridium powders using a reaction product from reacting a group III A metal with barium peroxide as an impregnant
US5007874A · kind A · utility
2Cited by
4References
9Claims
0Family size
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Key dates
| Filing date | Oct 15, 1990 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Oct 15, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode is made from a mixture of tungsten and iridium powders using a ction product formed from reacting a Group III A metal powder with barium peroxide powder as an impregnant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.