Process for the production of an electrical insulant with a high breakdown voltage in vacuo
US5232640A · kind A · utility
0Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Aug 9, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B19/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Process for the production of an electrical insulant (5) placed in an intense electrical field, particularly between two electrodes (1, 2) of an electron tube. The insulant (5) is a crystalline material, whose free surfaces (7) in vacuo (6) have been treated so as to reduce or eliminate crystallization defects. The treatment is checked by measurements of a particular optical or mechanical property of the free surfaces. The breakdown voltage can be multiplied by three or four compared with conventional insulants and can approach the breakdown voltage of the vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.