Method of making a cathode from tungsten and iridium powders usi

Details Method of making a cathode from tungsten and iridium powders usi Method of making a cathode from tungsten and iridium powders usi

1990-10-15

1991-04-16

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

313346DC, H01J 904

Patent

active

050078747

ABSTRACT:
A cathode is made from a mixture of tungsten and iridium powders using a ction product formed from reacting a Group III A metal powder with barium peroxide powder as an impregnant.

REFERENCES:
patent: 2700118 (1955-01-01), Hughes et al.
patent: 2722626 (1955-11-01), Coppola et al.
patent: 4808137 (1989-02-01), Branovich et al.
patent: 4863410 (1989-09-01), Branovich et al.

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