47 Result(s)

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...

A. V. Filippov, A. G. Zagorodny, A. F. Pal’, A. N. Starostin, A. I. Momot in JETP Letters (2008)

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...

A. V. Filippov, A. G. Zagorodny, A. I. Momot… in Journal of Experimental and Theoretical Ph… (2007)

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...

A. V. Filippov, M. N. Vasil’ev, A. V. Gavrikov, A. F. Pal’, O. F. Petrov… in JETP Letters (2007)

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...

A. V. Filippov, A. G. Zagorodny, A. I. Momot… in Journal of Experimental and Theoretical Ph… (2007)

Article

Effect of the electric field of the anode sheath on the growth of aligned carbon nanotubes in a glow discharge

Arrays of aligned carbon nanotubes on silicon substrates were grown in the anode sheath of a dc glow discharge. In order to clarify the role of the electric field in the growth of nanotubes, numerical simulati...

A. F. Pal’, T. V. Rakhimova, N. V. Suetin, M. A. Timofeev… in Plasma Physics Reports (2007)

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...

A. V. Filippov, A. F. Pal’, A. N. Starostin, A. S. Ivanov in JETP Letters (2006)

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...

A. V. Filippov, V. N. Babichev, N. A. Dyatko… in Journal of Experimental and Theoretical Ph… (2006)

Article

Behavior of the system of diamond particles with nanometer nickel coating at high pressures and temperatures in the sintering process

E. A. Ekimov, A. S. Ivanov, A. F. Pal’, A. N. Ryabinkin, A. O. Serov… in Doklady Physics (2005)

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...

A. V. Filippov, A. G. Zagorodny, A. F. Pal’… in Journal of Experimental and Theoretical Ph… (2005)

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 ...

V. N. Babichev, A. F. Pal’, A. N. Starostin… in Journal of Experimental and Theoretical Ph… (2004)

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...

A. G. Leonov, A. F. Pal’, A. N. Starostin… in Journal of Experimental and Theoretical Ph… (2004)

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...

E. A. Ekimov, E. L. Gromnitskaya, D. A. Mazalov, A. F. Pal’… in Physics of the Solid State (2004)

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...

V. V. Dvorkin, N. N. Dzbanovskii, A. F. Pal’, N. V. Suetin… in Physics of the Solid State (2004)

Article

Production of disperse composite materials in a dusty plasma

A. S. Ivanov, V. S. Mitin, A. F. Pal, A. N. Ryabinkin, A. O. Serov… in Doklady Physics (2004)

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...

A. G. Leonov, A. F. Pal’, A. N. Starostin… in Journal of Experimental and Theoretical Ph… (2003)

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...

A. V. Filippov, V. E. Fortov, A. F. Pal’… in Journal of Experimental and Theoretical Ph… (2003)

Article

Development of a self-consistent model of dust grain charging at elevated pressures using the method of moments

A model of dust grain charging is constructed using the method of moments. The dust grain charging process in a weakly ionized helium plasma produced by a 100-keV electron beam at atmospheric pressure is studi...

A. V. Filippov, N. A. Dyatko, A. F. Pal’, A. N. Starostin in Plasma Physics Reports (2003)

Article

Potential of a dust grain in a nitrogen plasma with a condensed disperse phase at room and cryogenic temperatures

The first numerical study is presented of the self-consistent potential of a dust grain in a nitrogen plasma with a condensed disperse phase at room and cryogenic temperatures and at high gas pressures for whi...

A. F. Pal’, D. V. Sivokhin, A. N. Starostin, A. V. Filippov… in Plasma Physics Reports (2002)

Article

Current dynamics and mechanisms for the instability of a non-self-sustained glow discharge in nitrogen

The current dynamics in a non-self-sustained glow discharge in atmospheric-pressure nitrogen (with a small admixture of oxygen) at cryogenic and room temperatures is studied experimentally and theoretically. F...

Yu. A. Mankelevich, A. F. Pal’, N. A. Popov, T. V. Rakhimova… in Plasma Physics Reports (2001)

Article

Charging of Dust Grains in a Nuclear-Induced Plasma at High Pressures

The process of dust-grain charging in plasmas produced by radioactive decay products or spontaneous fission fragments in air and xenon at high pressures is studied numerically in the hydrodynamic approximation...

A. F. Pal’, A. N. Starostin, A. V. Filippov in Plasma Physics Reports (2001)