Method of fabricating cathode electrodes

Details Method of fabricating cathode electrodes Method of fabricating cathode electrodes

1982-04-23

1984-01-03

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

313346R, 427 77, 445 50, 445 51, H01J 904

Patent

active

044240449

ABSTRACT:
A method is disclosed to fabricate a cathode electrode for a continuous wave magnetron so that the resulting product is relatively free from random frequency modulation and frequency "pushing". The method generally comprises the steps of forming, from a slurry containing comminuted tungsten and thorium hydride, a cathode electrode of the desired shape and heat treating such cathode to remove all volatile elements and ultimately to form a cathode electrode made up of an eutectic mixture of tungsten and thorium particles of tungsten.

REFERENCES:
patent: 2339392 (1944-01-01), Garner
patent: 2654045 (1953-09-01), Wright
patent: 2879432 (1959-03-01), Slivka
patent: 3027480 (1962-03-01), Tuinila et al.
patent: 4002940 (1977-01-01), Ekkelboom et al.

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