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NASA NTRS · 19670063358

Models for electron emission from metals with adsorbed monolayers.

Kaplit, M.·Schrenk, G. L.·Zelby, L. W.
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Abstract

Electron emission models for evaluation of charge distribution and total energy of metal-gas interface, noting role of quantum mechanical corrections

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REFRACTORY METALGAS-SOLID INTERFACECHARGE DISTRIBUTIONELECTRON ENERGYQUANTUM MECHANICS

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Kaplit, M., Schrenk, G. L., Zelby, L. W.. 1967-09-01. Models for electron emission from metals with adsorbed monolayers.. https://ntrs.nasa.gov/citations/19670063358

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NASA NTRS1967

Theoretical studies on the relationship between the thermionic work functions of refractory-metal intermetallic compounds and their electronic and crystal structures Final summary report

The Group VIA-Re binary systems are characterized by the presence of several intermediate phases. The u phase is present in all of the systems, but the a-Mn phases occur in only the Mo-Re and W-Re systems. The occurrence of these intermediate phases appears to be governed largely by electronic factors and is predictable on the basis of electron/atom ratio. The thermionic work functions of the intermediate phase materials were experimentally determined. function and the screening of the outermost electrons in the Group VIA metals was found. A correlation between the work As might be expected for purely metallic substances, the work functions were relatively high, in the range 4. 5 to 5. 0 eV, and in each case were bracketed by the work functions of the pure constituents. A discontinuous change in the average work function with composition is proposed, based on a thermodynamical treatment of the electron vapor.

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