Process for depositing a ceramic coating on a filament

Details Process for depositing a ceramic coating on a filament Process for depositing a ceramic coating on a filament

C - Chemistry, Metallurgy

23

C

32/23, 117/74, 1

C23C 16/30 (2006.01) C23C 16/46 (2006.01) C23C 16/54 (2006.01)

Patent

CA 2015126

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.

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