Electron and Ion Emission from Surfaces Originally of TaB2, ZrC, Mo2C, MoSi2, TaSi2, and WSi2 in Cesium Vapor
- 1 April 1968
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 39 (5), 2306-2310
- https://doi.org/10.1063/1.1656550
Abstract
Full‐temperature‐range electron‐ and ion‐emission data from six refractory metal compounds in cesium vapor were obtained in the range of cesium arrival flux between 1013 and 1016 atoms/cm2·sec. Data are shown for ZrC and Mo2C; the boride and the three silicides were thermally unstable at emission temperatures, resulting in nonreproducible emission in some cases. Electron‐emission S curves and the cesium surface‐ionization critical‐temperature envelopes are shown.Keywords
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