A comparison of the performance of two rhenium, niobium cylindrical thermionic converters.
Comparative performance of niobium cylindrical thermionic converters with vapor deposited rhenium, stressing emitters surface preparation
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Comparative performance of niobium cylindrical thermionic converters with vapor deposited rhenium, stressing emitters surface preparation
Cylindrical thermionic converter with vapor deposited rhenium emitter and niobium collector, measuring efficiency and power density
Fast neutron irradiation effect on niobium nitride current carrying capacity, showing enhancement
Apparent solubility of commercially pure and oxygen-doped tantalum and niobium in liquid potassium
Thermionic converter operation with 112 to 114 oriented tungsten emitter and niobium collector with oxygen
Performance characteristics of parallel plane, variable spaced thermionic converter with tungsten emitter and molybdenum-niobium collector
Computer acquired performance map of etched-rhenium, niobium planar diode
Ultrasonic attenuation and velocity measurements in normal and superconducting states of niobium
Computer processed performance data for thermionic converter with etched rhenium emitter and niobium collector
Analysis of superconducting niobium films to determine relationship of critical current density with film thickness and orientation in magnetic field
Organometallic compounds of niobium and tantalum useful for film deposition
Computer acquired performance data from physically vapor deposited tungsten-niobium thermoinic converter
Computer analysis of performance of chemically vapor-deposited tungsten, niobium thermionic converter based on temperatures of emitter, collector and cesium reservoir
Niobium nitride thin films very high critical current and field characteristics, noting deposition by sputtering
Electron beam welding of tungsten to tungsten/rhenium and tungsten/rhenium to niobium, discussing techniques for assembly of thermionic converter fuel elements
Nonstoichiometric zirconium niobium carbide thermodynamic properties, deriving components activity equations from statistical considerations based on pairwise interaction energies
Niobium carbonitride thin film deposition temperature effects on superconducting properties, considering transition temperature and critical currents and fields
The effect of collector, guard-ring potential imbalance on the observed collector-current-density J, collector-to-emitter voltage V characteristic was evaluated in a planar, fixed-space, guard-ringed thermionic converter. The J,V characteristic was swept in a period of 15 msec by a variable load. A computerized data acquisition system recorded test parameters. The results indicate minimal distortion of the J,V curve in the power output quadrant for the nominal guard-ring circuit configuration. Considerable distortion, along with a lowering of the ignited-mode striking voltage, was observed for the configuration with the emitter shorted to the guard ring. A limited-range performance map of an etched-rhenium, niobium, planar converter was obtained by using an improved computer program for the data acquisition system.