Method of manufacturing cathodes

Details Method of manufacturing cathodes Method of manufacturing cathodes

1980-10-09

1981-11-24

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204297R, 204297W, C25D 1302, C25D 1312, C25D 1708

Patent

active

043023096

ABSTRACT:
A method of electrophoretically coating cathode shafts with an emissive layer having excellent mechanical properties, by dipping a jig in which the shafts are placed into an electrophoresis bath. The jig includes a plate formed of electrically insulating material having an electrically conducting layer on one side, with apertures for the cathode shafts defining an opening in the layer. The conducting layer and cathode surface are immersed in an electrophoresis bath, and an electric potential is then applied between the layer and the shafts.

REFERENCES:
patent: 3271280 (1966-09-01), Shroff
patent: 3394819 (1968-07-01), Saville
patent: 3766125 (1973-10-01), Hansen et al.

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