Tribological Behavior of Aerosol Particles in Acoustic Field

This work investigates agglomeration process of aerosol particles in presence of acoustic field. It is shown that besides orthokinetic and hydrodynamic interaction mechanisms, tribological interaction occurs in presence of acoustic field. This interaction depends on dynamic viscosity of the gas mixture above the liquid surface. The influence of acoustic field on tribological interaction between the aerosol particles was investigated both numerically and experimentally. The obtained results show the positive influence of acoustic field on agglomeration of aerosol particles.

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Hydrodynamic interaction of spherical aerosol particles in a high intensity acoustic field

Journal of Sound and Vibration ◽

10.1016/s0022-460x(86)80309-1 ◽

1986 ◽

Vol 108 (1) ◽

pp. 33-49 ◽

Cited By ~ 21

Author(s):

R. Tiwary ◽

G. Reethof

Keyword(s):

Acoustic Field ◽

High Intensity ◽

Hydrodynamic Interaction ◽

Aerosol Particles

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EFFECT OF NITROGEN AMOUNT ON TRIBOLOGICAL BEHAVIOR OF PLASMA NITRIDED 31CrMoV9 STEEL

Surface Review and Letters ◽

10.1142/s0218625x18502177 ◽

2019 ◽

Vol 26 (07) ◽

pp. 1850217 ◽

Cited By ~ 2

Author(s):

O. ÇOMAKLI ◽

A. F. YETIM ◽

B. KARACA ◽

A. ÇELIK

Keyword(s):

Wear Resistance ◽

Tribological Behavior ◽

Wear Behavior ◽

Plasma Nitriding ◽

Surface Hardness ◽

Compound Layer ◽

Gas Mixture ◽

X Ray Diffraction ◽

X Ray ◽

Pin On Disk

The 31CrMoV9 steels were plasma nitrided under different gas mixture ratios to investigate an influence of nitrogen amount on wear behavior. The structure, mechanical and tribological behavior of untreated and nitrided 31CrMoV9 steels were analyzed with X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), microhardness device, 3D profilometer and pin-on-disk wear tester. The analysis outcomes displayed that the compound layer consists of nitride phases (Fe2N, Fe3N, Fe4N and CrN). Additionally, the thickness of the compound layers, surface hardness and roughness increased with increasing nitrogen amount in the gas mixture. The highest friction coefficient value was obtained at nitrogen amount of 50%, but the lowest value was seen at nitrogen amount of 6%. It was observed that wear resistance of 31CrMoV9 steel improved after plasma nitriding, and the best wear resistance was also obtained from plasma nitrided sample at the gas mixture of 94% H[Formula: see text]% N2.

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Diamond-like carbon coatings with nanocomposite structure formed by reactive magnetron sputtering of chrome in an Ar + C2H2 + N2 gas mixture and their tribological behavior

Journal of Machinery Manufacture and Reliability ◽

10.3103/s1052618814010087 ◽

2014 ◽

Vol 43 (1) ◽

pp. 29-35 ◽

Cited By ~ 2

Author(s):

M. M. Khrushchov ◽

M. V. Atamanov ◽

E. A. Marchenko ◽

I. S. Levin ◽

A. A. Dubravina ◽

...

Keyword(s):

Magnetron Sputtering ◽

Tribological Behavior ◽

Reactive Magnetron Sputtering ◽

Gas Mixture ◽

Diamond Like Carbon ◽

Reactive Magnetron ◽

Carbon Coatings ◽

Nanocomposite Structure

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Calculation of degassing networks taking into account the accumulation of the liquid phase

E3S Web of Conferences ◽

10.1051/e3sconf/201910900063 ◽

2019 ◽

Vol 109 ◽

pp. 00063

Author(s):

Leonid Novikov ◽

Oleksandr Bokii

Keyword(s):

Liquid Phase ◽

Cross Section ◽

Liquid Surface ◽

Geometric Parameters ◽

Interfacial Friction ◽

Gas Mixture ◽

Dynamic Parameters ◽

Fluid Accumulation ◽

Gas Dynamic ◽

Resistance Coefficients

The issue of accounting for the accumulation of liquid in the mine degassing network during gas-dynamic calculations is considered. Geometry of fluid accumulation in the cross section of degassing pipeline and the formulas for geometric parameters are presented. A scheme of wave generation on the liquid surface is considered. Dependence for the coefficient of resistance to interfacial friction on the liquid surface is proposed. Formulas for calculation of gas-dynamic parameters on the pipeline section are given. The results calculation of the resistance coefficients in the place accumulation of liquid, changes in flow and pressure of the gas mixture are presented. Calculations carried out for pipelines with accumulations of liquid.

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