DocumentCode
3556261
Title
A pressed multi-layer Nickel matrix cathode
Author
Zhang, E.Q. ; You, Y.X. ; Cheng, Y.J. ; Cai, W.H.
Author_Institution
Institute of Electronics, Academia Sinica, Beijing, China
Volume
30
fYear
1984
fDate
1984
Firstpage
326
Lastpage
329
Abstract
The mixed powder for pressing nickel Matrix cathode is separated into two layers: the central layer with activators while the top one without. This method together with the proper choice of activators results in lower work function, less sublimation, more resistant to gas poisoning and longer life. The principle of operation of this pressed multi-layer nickel matrix cathode is described by the model of dynamical surface emission center.
Keywords
Barium; Cathodes; Coatings; Costs; Current density; Manufacturing; Nickel; Powders; Pressing; Temperature measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1984 International
Type
conf
DOI
10.1109/IEDM.1984.190714
Filename
1484485
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