22 Result(s)
within
A. F. Pal’
Solid State Physics
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Article
Analysis of macroparticle charge screening in a nonequilibrium plasma based on the kinetic collisional point sink model
The screening of macroparticles in a nonequilibrium plasma is considered on the basis of the Vlasov kinetic equations supplemented with the collisional term in the Bhatnagar–Gross–Krook approximation and the p...
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Article
Ionic composition of a humid air plasma under ionizing radiation
A kinetic model is proposed for ion–molecular processes involving charged particles of a humid air plasma produced by a fast electron beam. The model includes more than 600 processes involving electrons and 41...
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Article
Electrostatic interaction of two charged macroparticles in an equilibrium plasma
This article is a critical review of publications devoted to studying the electrostatic interaction of two charged macroparticles in an equilibrium plasma. It is shown from an analysis of the force of interact...
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Article
Orbital motion of dust particles in an rf magnetron discharge. Ion drag force or neutral atom wind force
Microparticles with sizes up to 130 μm have been confined and the velocity and diameter of particles in a plasma trap of an rf magnetron discharge with an arc magnetic field have been simultaneously measured. ...
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Article
Bipolar charging of dust particles under ultraviolet radiation
The photoemission charging of dust particles under ultraviolet radiation from a xenon lamp has been investigated. The velocities of yttrium dust particles with a work function of 3.3 eV and their charges have ...
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Article
Screening of a moving charge in a nonequilibrium plasma
Based on the model of point sinks, we consider the problem on the screening of the charge of a moving macroparticle in a nonequilibrium plasma. The characteristic formation times of the polarization cloud arou...
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Article
Kinetic description of the screening of the charge of macroparticles in a nonequilibrium plasma
A new approach has been developed for the kinetic description of the screening of the charge of macroparticles and the determination of the distribution of the effective potential in a nonequilibrium plasma. T...
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Article
Interaction of two macroparticles in a nonequilibrium plasma
The interaction of two macroparticles in a nonequilibrium plasma at elevated pressures has been investigated. An asymptotic theory of screening, which leads to a two-exponential dependence of the macroparticle...
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Article
Ultrahigh charging of dust particles in a nonequilibrium plasma
Charging of dust particles in a plasma with the two-temperature energy distribution of electrons has been studied. It has been shown that the dust-particle potential divided by the electron temperature decreas...
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Article
Charge screening in a plasma with an external ionization source
An asymptotic theory for the screening of the electric field of a dust particle or a spherical probe in a plasma with an external steady and/or internal (proportional to the electron density) gas ionization so...
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Article
Electrostatic interaction between two macroparticles in the Poisson-Boltzmann model
Considering the electrostatic energy of the system of two macroparticles in a plasma in the Poisson-Boltzmann model, Resendes et al. [Phys. Lett. A 239, 181 (1998)], Ivanov [Phys. Lett. A 290, 304 (2001)], Gerasi...
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Article
Formation of plasma dust structures at atmospheric pressure
The formation of strongly coupled stable dust structures in the plasma produced by an electron beam at atmospheric pressure was detected experimentally. Analytical expressions were derived for the ionization r...
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Article
Screening of the dust-particle charge in a plasma with an external ionization source
An asymptotic theory of the screening of the dust-particle charge in a plasma with an external ionization source has been developed. It has been shown analytically that the screening of the charge of a dust pa...
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Article
Stable dust structures in non-self-sustained gas discharge under atmospheric pressure
The formation of stable dust structures in electron-beam-controlled non-self-sustained discharge plasma was predicted and experimentally observed. To determine the conditions for dust-particle levitation, the ...
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Article
Dusty photoresonant plasma with coulomb collisions
We have studied the charging of dust particles in a dense photoresonant sodium plasma with electron and ion densities as high as 1016 cm−3 produced by laser pum** of the resonance level of Na, which was a small...
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Article
Microstructure and mechanical characteristics of nanodiamond-SiC compacts
Superhard nanodiamond-SiC ceramics are prepared by infiltrating liquid Si into porous nanodiamond compacts under pressure. Synthesized samples are 2.2 mm thick and 3–4 mm in diameter. The effect of particle si...
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Article
Use of ultrafine-dispersed nanodiamond for selective deposition of boron-doped diamond films
A suspension of ultrafine-dispersed nanodiamond was used for introducing (in particular, selectively) high-density centers of diamond nucleation on various substrates. High-quality doped diamond films to be us...
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Article
Dust grains in plasma with coulomb collisions
Dust-grain charging in a dense plasma with electron and ion concentration up to 1016cm−3, where the electron transport cross section is dominated by Coulomb collisions, was investigated. It was established that t...
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Article
Mechanism of diffusion of positively charged dust particles in a photoemission cell under microgravity conditions
The decay of a dusty plasma in a photoemission cell under microgravity conditions is investigated on the basis of the method of nonlocal moments. It is founds that plasma decay in space experiments occurs in a...
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Article
Non-self-sustained discharge in nitrogen with a condensed dispersed phase
A non-self-sustained discharge in nitrogen with a condensed dispersed phase is studied experimentally for the first time under atmospheric pressure at room temperature. It is shown that macroparticles strongly...
