oxide-coated cathode
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oxide-coated cathode

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Published by Chapman & Hall .
Written in English


Book details:

Edition Notes

Statementtranslated from the German! by Dr. Phil. S. Wagener.
ContributionsWagener, Siegfried.
The Physical Object
Pagination311p.,ill.,22cm
Number of Pages311
ID Numbers
Open LibraryOL21521450M

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Additional Physical Format: Online version: Herrmann, Günther, Oxide-coated cathode. London, Chapman & Hall, (OCoLC) Document Type. The most common type of indirectly heated cathode is the oxide-coated cathode, in which the nickel cathode surface has a coating of alkaline earth metal oxide to increase emission. One of the earliest materials used for this was barium oxide ; it forms a monatomic layer of .   The Oxide-Coated Cathode, Vol. 1: Manufacture; Vol. 2: Physics, Including Thermal Emission from Metals and Semi-Conductors.G. Herrmann and Phil S. Wagener; trans Cited by: 1. Full text of "The Oxide Coated Cathode (G. Hermann, S. Wagener) " See other formats.

Looking for oxide-coated cathode? Find out information about oxide-coated cathode. A cathode that has been coated with oxides of alkaline-earth metals to improve electron emission at moderate temperatures. Also known as Wehnelt cathode Explanation of oxide-coated cathode. This chapter discusses some of the recent oxide cathode researches to reexamine certain of the earlier publications to ascertain whether the experimental results are consistent with the modern theory of semiconductors and suggest new experiments which may lead to Cited by: A THEORY OF THE OXIDE-COATED CATHODE LEY A.E.R.E., Harwell (Gt. Britain) (Received in revised form Novem ) SUMMARY A new model is presented in order to explain a variety of previous observations on the oxide-coated thermionic cathode, as well as the behaviour of a number of other oxide layer by: The Oxide-Coated Cathode By Dr. G. Herrmann and Dr. S. Wagener. Translated by Dr. S. Wagener. Vol. 1: Manufacture. Pp. viii + ; 21s. net. Vol. 2: Physics.

NN Berlin R London THEOXIDE-COATED CATHODE Translatedby R PostOfficeResearchStation DollisHill,London VOLUMEONE. energy levels in the oxide-coated cathode. In Fig. 1 is shown a model of the oxide-coated cathode which, it is believed, incorporates most of the elements influencing the electron emission from these cathodes. These elements will be considered separately from left to right. The base metal usually employed, and the one employed in theseFile Size: 1MB. A high-performance LiCoO2 cathode was successively fabricated by a sol−gel coating of Al2O3 to the LiCoO2 particle surfaces and subsequent heat treatment at °C for 3 h. Unlike bare LiCoO2, the Al2O3-coated LiCoO2 cathode exhibits no decrease in its original specific capacity of mA h/g (vs lithium metal) and excellent capacity retention (97% of its initial capacity) between and 2 Cited by: A hot cathode is a cathode that is heated by a filament to produce electrons by thermionic emission. The filament is a thin wire of a refractory metal like tungsten heated red-hot by an electric current passing through it. Before the advent of transistors in the s, virtually all electronic equipment used hot-cathode vacuum hot cathodes are used in vacuum tubes in radio.