plasma electron source
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scholarly journals Electron beam sintering of Mn-Zn ferrites using a forevacuum plasma electron source

2021 ◽  
Vol 2064 (1) ◽  
pp. 012050
Author(s):  
A S Klimov ◽  
I Y Bakeev ◽  
A A Zenin
Keyword(s):  
Electron Beam ◽  
Elemental Composition ◽  
Plasma Electron ◽  
Electron Source ◽  
Pressing Pressure ◽  
Oxygen Environment ◽  
Fine Powders ◽  
Plasma Electron Source ◽  
Composition And Structure

Abstract The article presents the results of electron beam sintering without applying pressure of Mn-Zn ferrites in an oxygen environment. Samples for sintering were made from fine powders and pressed at various pressures into compacts in the form of disks. Measurements of the elemental composition and structure of the sample after sintering are presented. It is shown that the result of sintering depends on the pressing pressure of compacts, time and temperature of sintering.

scholarly journals Influence of electron-beam heating modes on the structure of composite ZrO2-Al2O3 ceramics

2021 ◽  
Vol 2064 (1) ◽  
pp. 012049
Author(s):  
A S Klimov ◽  
I Y Bakeev ◽  
A A Zenin
Keyword(s):  
Electron Beam ◽  
Temperature Drop ◽  
Plasma Electron ◽  
Electron Source ◽  
Helium Pressure ◽  
Pressing Pressure ◽  
Composite Ceramics ◽  
Plasma Electron Source ◽  
Beam Heating ◽  
Electron Beam Heating

Abstract The article presents the results of electron beam sintering of composite ceramics based on Al2O3 and ZrO2 powders. Samples were made with different contents of Al2O3 and ZrO2 components and different pressing pressures. Sintering was carried out in vacuum at a helium pressure of 30 Pa. An electron beam generated by a forevacuum plasma electron source was used for sintering. It is shown that the sintering result depends on the pressing pressure and the percentage of components. The influence of the geometry of the samples and their composition on the temperature drop over their volume during sintering has been determined.

scholarly journals Effect of a longitudinal magnetic field on the emission characteristics of a forevacuum plasma electron source based on a hollow cathode discharge

2021 ◽  
pp. 5-11
Author(s):  
Ilya Bakeev ◽  
Alekcey Zenin ◽  
Alexander Klimov ◽  
Efim Oks
Keyword(s):  
Magnetic Field ◽  
Hollow Cathode ◽  
Longitudinal Magnetic Field ◽  
Threshold Value ◽  
Plasma Electron ◽  
Electron Source ◽  
Emission Characteristics ◽  
Cathode Cavity ◽  
Plasma Electron Source ◽  
The Magnetic Field

The effect of a longitudinal magnetic field on the emission characteristics of a forevacuum plasma electron source based on a discharge with a hollow cathode is studied. It is shown that, starting from a certain threshold value of the induction Bc, the magnetic field leads to a decrease in the plasma concentration on the axis of the cathode cavity. With a decrease in the diameter of the cathode cavity, the threshold value of Bc increases. On the other hand, the longitudinal magnetic field makes it possible to increase the diameter of the emission chan-nel, which contributes to a significant increase in the current of electron emission from the plasma. In this case, the degree of increase in the emission current is determined by the ge-ometry of the cathode cavity and the pressure of the working gas.

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