Mathematical Model of a Thermionic Converter in a Nuclear Reactor

Belkin, A.; Schukin, N. V.

doi:10.1134/s1063778821080020

Cited by 1 publication

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“…Currently, the practically single way to convert directly the heat of the high-temperature combustion cycle of nuclear (in the future, thermonuclear) or organic fuel into electricity is the embedding of thermionic converters (TICs) directly into the shells of both the furnaces and the hot zones of reactors [1,2]. Tungsten single crystals are a promising material for use as cathodes in high-temperature TICs due to their low sublimation rate combined with high emission properties [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Deformation on the Electronic Properties of the W(110) Single Crystals Surface Before and After Different Types of Surface Treatment

Smolnik,

Makeieva,

Kolesnyk

et al. 2024

Metallofiz. Noveishie Tekhnol.

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The electronic states' changes on the surface of the W(110) single crystal strained due to plastic bending are studied by the method of plasmon spectroscopy after thermal, thermochemical and ion treatments in comparison with those of analogous unstrained tungsten single crystal. The relative changes of the interplanar spaces, the concentration of the conduction electrons involved in plasma oscillations, as well as work function for electrons are calculated based on the plasmons' energy shifts. As established, the macroscopic bending of the W(110) single crystal leads to a decrease in the work function from its convex surface, which undergoes tensile deformation. The maximal difference in the work functions for unstrained and strained single crystals is observed after all sequentially used thermal, thermochemical and ion treatments and is of 0.2 eV. The obtained results are important for the practical application of thermionic energy converters with nonplanar electrodes.

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Section: Introductionmentioning

confidence: 99%