Spectral examination of the "loading" effect while removing the photoresist coatings from the substrate surfaces in the microwave plasma discharge

2000 ◽  
Author(s):  
S.V. Bordusov
Keyword(s):  
Microwave Plasma ◽  
Plasma Discharge ◽  
Loading Effect ◽  
Substrate Surfaces

Structure formation in diamond powder during chemical infiltration from the gas phase

2020 ◽  
pp. 61-68
Author(s):  
S. A. Eremin ◽  
I. A. Leontiev ◽  
Yu. M. Yashnov ◽  
V. N. Anikin
Keyword(s):  
Structure Formation ◽  
Gas Phase ◽  
Microwave Plasma ◽  
Diamond Powder ◽  
Plasma Discharge ◽  
Diamond Growth ◽  
Infiltration Process ◽  
Allotropic Modifications ◽  
Gas Pumping ◽  
Carbon Modifications

In this paper was investigated effect of pumping a mixture of methane and hydrogen in a microwave discharge through layers of diamond powder on structure formation sediment during chemical infiltration from the gas phase. The infiltration process was implemented on the conditions of gas pumping through the layers of diamond powder, in the presence of a plasma discharge over the samples. It is established that in contempt of the size of the diamond powder, the growth of diamond from the gas phase occurs on the surface of the first layer, the growth of diamond from the gas phase stops when the second layer starts, and different allotropic modifications of carbon start to grow, in particular nanocrystalline graphite, carbon nanotubes, and graphite. Such a rapid transition between diamond growth and the growth of various allotropic carbon modifications is related with the screening of the plasma discharge by the first layer of diamond powder. Thus, the absence of direct contact of the microwave plasma discharge with the formed molecular hydrogen during its recombination leads to the fact that the concentration of atomic hydrogen is low to maintain the growth of diamond from the gas phase inside the layer of diamond powder.

Study of the Mechanism of Interaction of Microwave Plasma Discharge with Solutions of Organic Substances

2016 ◽  
Vol 685 ◽  
pp. 657-661 ◽  
Author(s):  
Ludmila N. Shiyan ◽  
Alexey G. Zherlitsyn ◽  
Seda O. Magomadova ◽  
Cyril S. Lazar
Keyword(s):  
Organic Compounds ◽  
Redox Reactions ◽  
Microwave Plasma ◽  
Plasma Discharge ◽  
Organic Substances ◽  
Air Plasma ◽  
Oxidation Reduction ◽  
Redox Indicator ◽  
Mechanism Of Interaction ◽  
Mechanism Of Oxidation

This paper reports about results describing the mechanism of oxidation-reduction reactions occurring in the microwave plasma interaction with organic compounds solutions. Air and argon were used as the plasma gases in the experiments on disrupture of aqueous liquid organic compounds. Application of inversible redox indicator of methylene blue (MB) showed that disrupture of organic substances in microwave plasma was based on redox reactions. It was found that MB highest efficiency in the solution took place when air plasma-supporting gas was used.

Numerical microwave plasma discharge study for the growth of large single-crystal diamond

2015 ◽  
Vol 54 ◽  
pp. 9-14 ◽  
Author(s):  
Hideaki Yamada ◽  
Akiyoshi Chayahara ◽  
Yoshiaki Mokuno ◽  
Shinichi Shikata
Keyword(s):  
Single Crystal ◽  
Microwave Plasma ◽  
Plasma Discharge ◽  
Large Single Crystal ◽  
Single Crystal Diamond

Effects of Continuous Volumetric Direct-Coupled Nonequilibrium Atmospheric Microwave Plasma Discharge on Swirl-Stabilized Premixed Flames

2016 ◽  
Vol 44 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Rajavasanth Rajasegar ◽  
Constandinos M. Mitsingas ◽  
Eric K. Mayhew ◽  
Stephen Hammack ◽  
Hyungrok Do ◽  
...  
Keyword(s):  
Microwave Plasma ◽  
Premixed Flames ◽  
Plasma Discharge
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