Results 41 to 50 of about 1,501,488 (203)
Two-dimensional simulation of an Ar/H2 direct-current discharge plasma
We created a two-dimensional, mathematical fluid model of a plasma in a spherical direct-current (DC) glow-discharge chamber based on the finite-element method (FEM) using the commercial FEM solver COMSOL Multiphysics. The model is based on the Boltzmann
Yong Che +8 more
doaj +1 more source
The properties of coatings obtained using two surface preparation methods were compared: heating and etching by ion bombardment with plasma generation by arc evaporators and heating and etching by a glow discharge.
Sergey Grigoriev +7 more
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Stm of Glow-Discharge Treated Surfaces [PDF]
As a model surface, graphite slides were treated by pure nitrogen gas plasma for different periods (15 sec-5 min). These samples were kept in air or under argon atmosphere in sealed holders. STM images were obtained at constant current mode. Results showed that both the number and the size of clusters formed by plasma deposition increased with exposure
Oral, A. +3 more
openaire +3 more sources
Depth profile analysis with glow discharge spectrometry
Nowadays, glow discharge-optical emission spectrometry (GD-OES) and glow discharge-mass spectrometry (GD-MS) can be considered as two well established techniques for depth profiling, offering practical interest to assist the synthesis optimization ...
L. Lobo, B. Fernández, R. Pereiro
semanticscholar +1 more source
Dust particles influence on a stratified glow discharge
In this work, the correlations between the parameters of a DC glow discharge and dust particles in a lowtemperatureplasma is studied. The formation of voids inside the dust cloud was studied, depending on thecharacteristics of the discharge (discharge ...
A. Fedoseev, N. Demin
doaj +3 more sources
Surface Modification of Dielectric Substrates by Broad Beams of High-Energy Atoms of Inert Gases
We present a new method to generate a neutral beam for surface treatment of materials by fast atoms of inert gases. The new method allows for treatment at lower pressures enlarging the scope for glow discharge applications.
Alexander Metel +4 more
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Hollow anode argon glow discharge plasma has been investigated experimentally at different argon gas pressure from constant discharge current. A sufficient high voltage has been applied among the electrodes to obtain breakdown.
Shamo Kh. Al-Hakary +4 more
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Spectral Characteristics of DC Short Glow Discharge Plasma With Grid Electrodes
The characteristics of post-cathode plasma maintained by a self-made DC short glow-discharge plasma generator with grid electrodes were measured by optical emission spectroscopy.
Shixin Zhao +9 more
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In glow discharge mass spectrometry (GDMS) and glow discharge optical emission spectrometry (GDOES), variations in the signal intensities against the discharge parameters: current, voltage and the pressure of plasma gas, are compared to clarify their excitation/ionization processes responsible to each signal.
Wagatsuma, Kazuaki +3 more
openaire +2 more sources
Dependence of discharge ignition on initial condition in atmospheric cascade glow discharges
A two-dimensional numerical fluid model was developed to study the effects of initial discharge conditions on the discharge dynamics and characteristics of atmospheric cascade glow discharge including dielectric barrier pulsed discharge and radio ...
Ying Guo +5 more
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