Sealing members for alumina arc tubes and method of making the same
US5426343A · kind A · utility
37Cited by
16References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1992 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Sep 16, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Alumina arc tube sealing members including a highly pure, fine alumina doped with yttrium oxide, and magnesium oxide. The sealing members are used in the formation of sintered hermetic seals to a green, prefired, or fully sintered translucent alumina arc tube and niobium electrical feedthrough assemblies with or without the use of sealing frits or brazing alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.