Method of manufacturing a dispenser cathode and the use of the m

Details Method of manufacturing a dispenser cathode and the use of the m Method of manufacturing a dispenser cathode and the use of the m

1986-04-24

1987-06-09

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

313346DC, H01J 904

Patent

active

046717773

ABSTRACT:
The invention relates to a method of manufacturing a dispenser cathode having a porous tungsten body, in which a metal oxide is provided in the body and the body is impregnated with barium. Good results as regards life and resistance to ion bombardment are obtained if the comparatively cheap oxides of gallium and indium are used.

REFERENCES:
patent: 3113370 (1963-12-01), Lerman
patent: 3458913 (1969-08-01), Schmidt
patent: 3919751 (1975-11-01), Buescher et al.

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