Method of overcoating a high current density cathode with rhodiu

Details Method of overcoating a high current density cathode with rhodiu Method of overcoating a high current density cathode with rhodiu

1988-07-05

1990-01-16

Morgenstern, Norman

Coating processes

Electrical product produced

Electron emissive or suppressive

427 77, 445 46, 445 50, 445 51, 445 58, 313346R, 313630, 313632, B05D 512, H01J 115, H01J 904

Patent

active

048942570

ABSTRACT:
A tungsten-iridium billet is impregnated with a chemical mixture of barium xide, strontium oxide, and aluminum oxide, the impregnated billet heated, and the surface of the impregnated billet desired for emission exposed to an overcoating of rhodium.

REFERENCES:
patent: 3373307 (1968-03-01), Zalm et al.
patent: 4783613 (1988-11-01), Yamamoto et al.

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