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 physical-chemical compositions formed in a stratified column of a dc glow discharge, are presented. The macroparticle substances are alumina (r = 10–35 μm), polydisperse Zn (r =...

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Published inUkrainian journal of physics (Kiev) Vol. 56; no. 12; p. 1284
Main Authors Khakhaev, A.D., Piskunov, A.A., Podryadchikov, S.F.
Format Journal Article
LanguageEnglish
Published 02.02.2022
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Abstract The results of experimental investigations of the movement velocity of a macroparticle in the dusty structures of various physical-chemical compositions formed in a stratified column of a dc glow discharge, are presented. The macroparticle substances are alumina (r = 10–35 μm), polydisperse Zn (r = 1–20 μm) and Zn' (r = 20–35 μm).  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.
AbstractList The results of experimental investigations of the movement velocity of a macroparticle in the dusty structures of various physical-chemical compositions formed in a stratified column of a dc glow discharge, are presented. The macroparticle substances are alumina (r = 10–35 μm), polydisperse Zn (r = 1–20 μm) and Zn' (r = 20–35 μm).  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.
Author Podryadchikov, S.F.
Khakhaev, A.D.
Piskunov, A.A.
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Cites_doi 10.1103/PhysRevE.72.016406
10.1134/1.1567418
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