On the Conductivity of Oxide Cathode Coatings
- 1 June 1954
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 25 (6) , 720-724
- https://doi.org/10.1063/1.1721722
Abstract
Experiments are described which supply evidence on the manner of electrical conduction through the oxide cathode coating. In the first experiment, I–V characteristics were obtained using special diodes with embedded probes. Contrary to the Loosjes-Vink theory, the characteristics for temperatures above 700°K are generally linear at high positive and negative potentials but curved at lower potentials. Other experiments would appear to confirm the presence of space change in the pores of the coating at temperatures above 700°K, and so support the Loosjes-Vink theory for higher-temperature conductivity. A modified conduction theory is put forward, and it is shown to fit in with all the known facts.This publication has 6 references indexed in Scilit:
- The effects of oxygen on the electrical properties of oxide cathodesBritish Journal of Applied Physics, 1953
- Conductivity of Oxide EmittersPhysical Review B, 1952
- Electrical Conductivity of Oxide Cathode CoatingsBritish Journal of Applied Physics, 1950
- On the noise spectra of semi-conductor noise and of flicker effectPhysica, 1950
- Semi-Conducting Properties in Oxide CathodesJournal of Applied Physics, 1949
- Oxide cathodes. The effect of the coating-core interface on conductivity and emissionProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1947