Macroparticle Movement Velocity in Dusty Structures of Various Compositions

The results of experimental investigations of the movement velocity of a macroparticle in the dusty structures of various physicalchemical compositions formed in a stratified column of a dc glow discharge, are presented. The macroparticle substances are alumina (r = 10 - 35 microns), polydisperse Zn...

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Bibliographic Details
Published in:arXiv.org 2012-01
Main Authors: Khakhaev, A D, Piskunov, A A, Podryadchikov, S F
Format: Article
Language:English
Subjects:
Aluminum oxide
Argon
Composition
Gas plasmas
Gas pressure
Glow discharges
Macroparticles
Rare gases
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Summary:The results of experimental investigations of the movement velocity of a macroparticle in the dusty structures of various physicalchemical compositions formed in a stratified column of a dc glow discharge, are presented. The macroparticle substances are alumina (r = 10 - 35 microns), polydisperse Zn (r = 1 - 20 microns) and Zn0 (r = 20 - 35 microns). Plasma-forming gases are inert gases (Ne, Ar). The inverse relation between the velocity and the gas pressure (in the range 40-400 Pa) is found and, for the same material of macroparticles in different gas plasmas, is confirmed by theory and does not contradict observations. But, to explain a difference of quantitative data for macroparticles made from different materials in Ar plasma, the additional research is required.
ISSN:2331-8422