Apparatus for depositing a ceramic coating on a filament
US5221353A · kind A · utility
0Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1992 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Jul 24, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/545
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for depositing a ceramic coating on a filament, which comprises heating the filament by passage of an electric current via at least two electrodes, and passing the heated filament through a deposition chamber containing gases which on contact with the hot filament deposit the required coating; characterized in that after deposition of the coating, the coated filament passes through an electrode containing a liquid metal mixture which is a mercury/indium or mercury/cadmium amalgam or a gallium/indium mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.