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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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Thermionic diode sensor is used as a pressure transducer in advanced space power systems using liquid metals as working and heat transfer media at temperatures up to 1800 deg F. The sensor converts the motion of a pressure actuated refractory alloy capsule into a suitable electrical output.
Thermophysical properties of potential thermal energy storage materials for design of TES THERMIONIC systems for long duration space flights
Optical and calorimetric tests of nickel mirrors for use as power source for thermionic generators
Distillation apparatus in the form of a U tube supplies small amounts of pure cesium vapor at constant pressure to a thermionic converter. The upstream leg of the U tube is connected to a vacuum pump to withdraw noncondensable impurities, the bottom portion serves as a reservoir for the liquid cesium.
Molybdenum disulfide lubricant film is deposited on two substrates, niobium and nickel-chromium alloys, by means of physical direct-current sputtering. The sputtering system uses a three-electrode /triode/ geometry - a thermionic cathode, an anode, and the target, all enclosed in a vacuum chamber.
High strength, thermal conductance cermet seal for thermionic diode
Annotated bibliography on batteries, fuel cells, thermionics, thermoelectrics, nuclear energy sources, and other direct energy conversion concepts adaptable to space vehicles
Thermal energy storage container integration with thermionic converter
Current-voltage characteristics of collisionless cylindrical diode with thermionically emitted electrons
Point-kernel computation and experimental measurements of gamma heating effects during thermionic diode irradiation
Design and development of thermionic electric thrustor
High temperature cermet seal for research thermionic diode, discussing resistivity, structural integrity, thermal shock resistance, tensile strengths and thermal conductance
Thermal oxidation kinetics of oxide film growth on metal crystals, considering ion diffusion and thermionic electron emission
Cs thermionic converter oxygen and Cs sources related to performance, discussing controlled formation and injection from Cs oxides
Thermal and performance analysis for thermionic converters with rhenium and palladium collectors, noting emitter-temperature errors
Thermionic work functions and desorption energies for oxygen on polycrystalline W, Mo and Re filaments, discussing oxygen pressure and filament temperature
High temperature insulating cermet seal for thermionic diodes noting high shock resistance and thermal conductance
Plane collisionless sheath effects between field modified emitting electrodes and thermally ionized plasmas and thermionic diode configurations