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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 775 records · Page 43

Cu-Cd and Ag-Cd cermet contacts

Method for preparing copper-cadmium and silver- cadmium cermet alloys without cadmium loss - evaluation of breaking electric contacts and collector plates

COLLECTOR↗

Plasma jet electrode has longer operating life

Water-cooled, silver-infiltrated tungsten electrode has twice the operating lifetime of the pure tungsten electrode used in plasma jet generators. This electrode reduces the erosion rate, ensures excellent heat transfer, and reduces thermal stresses.

Gracey, C. M.↗

Feed-through connector couples RF power into vacuum chamber

Feed-through device connects RF power to an RF coil in a vacuum chamber. The coil and leads are water cooled and vacuum tight seals are provided at the junctions. The device incorporates silver soldered copper tubes, polytetrafluoroethylene electrical insulators, and O-ring vacuum seals.

Grandy, G. L.↗

Potassium plasma cell facilitates thermionic energy conversion process

Thermionic energy converter converts nuclear generated heat directly into high frequency and direct current output. It consists of a potassium plasma cell, a tantalum emitter, and a silver plated copper collector. This conversion process eliminates the steam interface usually required between the atomic heat source and the electrical conversion system.

Richards, H. K.↗

Spacecraft power

Rollup solar array, thermoelectric failure mode testing, sterilizable battery, and surface potential of silver electrodes - spacecraft power

THERMOELECTRIC CONVERSION SYSTEM↗

Separator for alkaline batteries

Separator compositions have been tested as components of three-plate silver-zinc oxide cells in a standard cycling test. Six materials meet imposed requirements, giving cycling performance superior to cellophane.

Hoyt, H. W.↗