Method of making a long life high current density cathode from a

Details Method of making a long life high current density cathode from a Method of making a long life high current density cathode from a

1990-11-06

1991-06-11

Seidel, Richard K.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

313346DC, H01J 1906

Patent

active

050228838

ABSTRACT:
A long life high current density cathode is made from a mixture of aluminum xide and tungsten oxide powders by processing the powders into a fused powder, adding barium hydride to the fused powder, inverting the fused powder and heating to decompose the barium hydride and obtain barium metal.

REFERENCES:
patent: 1720654 (1929-07-01), Wein
patent: 1921065 (1933-08-01), Becker
patent: 2128270 (1938-08-01), Spanner et al.
patent: 2509702 (1950-05-01), Stanier
patent: 2543728 (1951-02-01), Lemmens et al.

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