Structure and phase composition of a chromium-silicon system modified by high-current electron beams

Углов, В.В.; Квасов, Н. Т.; Petukhov, Yu. A.; Koval, N. N.; Ivanov, Yu. F.; Тересов, А. Д.

doi:10.1134/s1027451012010193

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…For the efficient modification of NBR surfaces, we have used an electron beam in combination with the plasma that the beam generates in its transport in gas at elevated pressure in the fore-vacuum range [7]. Electron-beam modification of NBR, which is an insulating polymer material, requires neutralization of the surface charge built up by the electron beam itself [8].…”

Section: Introductionmentioning

confidence: 99%

Electron-beam modification of nitrile butadiene rubber in the fore-vacuum pressure range

Yushkov

Казаков

Tyunkov

2022

J. Phys.: Conf. Ser.

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We have studied the modification of nitrile butadiene rubber surface properties by pulsed and by continuous electron beams generated in inert (argon, helium) and in chemically active (oxygen, nitrogen, air) gas atmosphere in the fore-vacuum range of pressure (∼10 Pa). Relative measurements of the wear rate, friction coefficient, and contact (wetting) angle of the sample surfaces before and after beam treatment have been made. We have found that the electron-beam treatment of nitrile butadiene rubber does not result in any significant thermal damage to its surface, and that dependencies of the coefficient of friction and the wear rate on the surface treatment duration have a non-monotonic character. For optimal electron beam treatment conditions, the friction coefficient decreases by a factor of about two.

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Section: Introductionmentioning

confidence: 99%

Electron-beam modification of nitrile butadiene rubber in the fore-vacuum pressure range

Yushkov

Казаков

Tyunkov

2022

J. Phys.: Conf. Ser.

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“…Thermal, mechanical, and radiation effects of CPF pulses provide nonequilibrium conditions for structural and phase transformations and the formation of novel low-dimensional structures in the surface layers of solids. CPF treatment of a thin metal layer (e.g., Fe, Ti, Ni, Zr, Mo) on a silicon substrate successfully made it possible to form metal silicides in the near-surface layer [16,[19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Effect of Compressed Plasma Flow on Tantalum-Titanium Thin Layer Deposited on Silicon Substrate

Sari¹

2014

IJMSA

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Abstract:The interaction of a dense compressed nitrogen plasma flow with a system of Ta-Ti layers on a silicon substrate has been investigated. This plasma flow was generated in a quasi-stationary pulsed plasma accelerator that can provide a supersonic high energy plasma flux. The plasma pulse duration, discharge current, concentration, and energy densities absorbed by the target were 100 µs, 80 kA, 10 18 cm −3 , and 3-13 J/cm 2 respectively. The samples were exposed to a single plasma pulseor to a series of pulses and were characterized by scanning electron microscopy, X-ray diffraction, and energy dispersive X-ray analyses. The result showed that the changes in the elemental and structure phase compositions depends on energy and number of plasma pulses. Formation of Ti 5 Si 3 and Ta 2 N, are the main results of the current research.

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Multi-cycle of AISI 5135 steel modification by irradiation of the “film (Si (0.2 μm) + Nb (0.2 μm))/(AISI 5135 steel) substrate” system with an intense pulsed electron beam

Koval

Ivanov

Шугуров

et al. 2021

J. Phys.: Conf. Ser.

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Steel AISI 5135 surface layer modification carried out by high-cycle high-speed melting of the “film (Si + Nb)/(steel AISI 5135) substrate” system with an intense pulsed electron beam with an impact area of several square centimeters, have been implemented in a single vacuum cycle on the “COMPLEX” setup. The regime of the system “film (Si (0.2 μm) + Nb (0.2 μm))/(steel AISI 5135) substrate” irradiation with an intense pulsed electron beam (20 J/cm2, 200 μs, 3 pulses, 3 cycles) which makes it possible to form a surface layer with high thermal stability have been revealed. This layer is characterized by high hardness, more than 3 times higher than the hardness of AISI 5135 steel in the original (ferrite-pearlite structure) and wear resistance, more than 90 times higher than the wear resistance of the initial AISI 5135 steel. It is shown that the high strength and tribological properties of steel are due to the formation of the hardening phase particles (niobium silicide of Nb5Si3 composition).

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Structure and phase composition of a chromium-silicon system modified by high-current electron beams

Cited by 5 publications

References 6 publications

Electron-beam modification of nitrile butadiene rubber in the fore-vacuum pressure range

Electron-beam modification of nitrile butadiene rubber in the fore-vacuum pressure range

Effect of Compressed Plasma Flow on Tantalum-Titanium Thin Layer Deposited on Silicon Substrate

Multi-cycle of AISI 5135 steel modification by irradiation of the “film (Si (0.2 μm) + Nb (0.2 μm))/(AISI 5135 steel) substrate” system with an intense pulsed electron beam

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