APPARATUS FOR DEPOSITING A CERAMIC COATING ON A FILAMENT

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 coat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHATWELL, ROBERT A, KEWNEY, ASHLEIGH M, GRUBER, PHILIP
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	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.