Method of making a cathode from tungsten and iridium powders using a barium iridiate formed from barium peroxide and iridium oxide as the impregnant
US4840767A · kind A · utility
7Cited by
6References
8Claims
0Family size
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Key dates
| Filing date | Oct 3, 1988 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Oct 3, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode is made from a mixture of tungsten and iridium powders using a ium iridiate formed from barium peroxide and iridium oxide as the impregnant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.