Electric lamp or space discharge component or device manufacturi – Process – Electrode making
Patent
1987-04-15
1988-04-05
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
Electrode making
445 51, 313346DC, H01J 904
Patent
active
047355913
ABSTRACT:
A long life high current density cathode is made from a mixture of tungsten nd iridium powders using a barium iridiate as the impregnant by processing the mixture of powders with an activator into a porous billet, and then impregnating the billet with a barium iridiate by firing the billet in a dry hydrogen furnace at a temperature at which the impregnant melts.
REFERENCES:
patent: 4078900 (1978-03-01), Smith et al.
patent: 4165473 (1979-08-01), Falce
patent: 4236287 (1980-12-01), Smith
patent: 4444718 (1984-04-01), Smith
patent: 4570099 (1986-02-01), Green
Branovich Louis E.
Freeman Gerard L.
Smith Bernard
Gordon Roy E.
Kanars Sheldon
Ramsey Kenneth J.
The United States of America as represented by the Secretary of
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