Thermodynamic Calculation of the Characteristics of Metal Thermionic Emission

The thermodynamic equilibria of the “Fermi–Dirac gas–Maxwell gas–Boltzmann gas” and “metal–saturated vapor” systems are considered (with allowance for charged particles). It is shown that the work function of a metal at 0 K is equal to the Mulliken electronegativity of its atoms. For the latter case...

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Veröffentlicht in:	High temperature 2018-07, Vol.56 (4), p.532-537
Hauptverfasser:	Nikitin, M. I., Chilingarov, N. S., Osina, E. L., Osin, S. B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Atoms and Molecules in Strong Fields Charged particles Classical and Continuum Physics Electronegativity Industrial Chemistry/Chemical Engineering Laser Matter Interaction Materials Science Mathematical analysis Physical Chemistry Physics Physics and Astronomy Thermionic emission Thermodynamic equilibrium Thermophysical Properties of Materials
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Beschreibung
Zusammenfassung:	The thermodynamic equilibria of the “Fermi–Dirac gas–Maxwell gas–Boltzmann gas” and “metal–saturated vapor” systems are considered (with allowance for charged particles). It is shown that the work function of a metal at 0 K is equal to the Mulliken electronegativity of its atoms. For the latter case, it is proposed to take into account the relationship between the work-function thermal coefficient and the thermodynamic functions of positive and negative metal ions.
ISSN:	0018-151X 1608-3156
DOI:	10.1134/S0018151X18040144