scholarly journals Emission Spectrographic Analysis of Metal Solid Samples with Plasma Jet Flame. I. Application of Nitrogen Plasma Flame

1969 ◽  
Vol 42 (3) ◽  
pp. 693-695 ◽  
Author(s):  
Kichinosuke Hirokawa ◽  
Hidehiro Gotô
Keyword(s):  
Plasma Jet ◽  
Nitrogen Plasma ◽  
Spectrographic Analysis ◽  
Solid Samples ◽  
Plasma Flame ◽  
Jet Flame

Micro electrical discharge machining in nitrogen plasma jet

2018 ◽  
Vol 51 ◽  
pp. 198-207 ◽  
Author(s):  
Rimao Zou ◽  
Zuyuan Yu ◽  
Chengyang Yan ◽  
Jianzhong Li ◽  
Xin Liu ◽  
...  
Keyword(s):  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Plasma Jet ◽  
Nitrogen Plasma ◽  
Micro Electrical Discharge Machining

Design and use of an Efficient Plasma Jet Reactor for High Temperature Gas/Solid Reactions

1983 ◽  
Vol 30 ◽  
Author(s):  
F. W. Giacobbe ◽  
D. W. Schmerling
Keyword(s):  
Carbon Monoxide ◽  
High Temperature ◽  
Arc Discharge ◽  
Plasma Jet ◽  
Direct Result ◽  
Discharge Region ◽  
Plasma Flame ◽  
Powdered Carbon ◽  
High Yields ◽  
Experimental Trials

ABSTRACTA unique and efficient plasma jet reactor has been developed and used to study the high temperature production of carbon monoxide from a reaction between powdered carbon and a pure carbon dioxide plasma. The plasma jet reactor was designed to allow the injection of powdered carbon above the arc discharge region rather than into the plasma flame below the arc discharge region. High yields of carbon monoxide, produced at relatively high efficiencies, were a direct result of this technique. The plasma jet was also designed to enable rapid changing and testing of various anode insertsAverage yields of carbon monoxide in the product gases were as high as 80–87% in selected experimental trials. Carbon monoxide was produced at rates exceeding 15,000 1/hr (at STP) with a power expenditure of 52 Kw.

Experimental study on characteristics of direct-current laminar-flow nitrogen plasma-jet

2014 ◽  
Vol 26 (9) ◽  
pp. 92005 ◽  
Author(s):  
向勇 Xiang Yong ◽  
余德平 Yu Deping ◽  
曹修全 Cao Xiuquan ◽  
姚进 Yao Jin
Keyword(s):  
Experimental Study ◽  
Laminar Flow ◽  
Direct Current ◽  
Plasma Jet ◽  
Nitrogen Plasma

Electron Temperature Determination from Non-LTE Populations in a Nitrogen Plasma JET

1975 ◽  
Vol 30 (9) ◽  
pp. 1143-1155
Author(s):  
A. Catherinot ◽  
A. Sy
Keyword(s):  
Excited State ◽  
Pressure Range ◽  
Electronic Excitation ◽  
Plasma Jet ◽  
Nitrogen Plasma ◽  
Measured Data ◽  
Atomic Nitrogen ◽  
Plasma Model ◽  
Boltzmann Plot ◽  
Two Temperatures

Atomic nitrogen electronic state populations and electron density have been measured in a high power nitrogen plasma jet in the pressure range 50 < P (Torr) < 150. A Boltzmann plot of the excited state populations led to electronic excitation temperatures depending on the groups of levels considered. Low and high lying levels yielded excitation temperatures which differed up to 80% at P = 120 Torr. The measured data are analysed in the frame of a two-temperatures diffusiondominated plasma model

Study of a low pressure nitrogen plasma jet

1995 ◽  
Vol 2 (7) ◽  
pp. 2853-2862 ◽  
Author(s):  
P. Domingo ◽  
A. Bourdon ◽  
P. Vervisch
Keyword(s):  
Plasma Jet ◽  
Low Pressure ◽  
Nitrogen Plasma

scholarly journals Development of Organosilicon-Based Superhydrophobic Coatings through Atmospheric Pressure Plasma Polymerization of HMDSO in Nitrogen Plasma

Materials ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 219 ◽  
Author(s):  
Siavash Asadollahi ◽  
Jacopo Profili ◽  
Masoud Farzaneh ◽  
Luc Stafford
Keyword(s):  
Contact Angle ◽  
Atmospheric Pressure ◽  
Plasma Polymerization ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Nitrogen Plasma ◽  
Superhydrophobic Surfaces ◽  
Atmospheric Pressure Plasma Jet ◽  
Pressure Plasma ◽  
Superhydrophobic Coatings

Water-repellent surfaces, often referred to as superhydrophobic surfaces, have found numerous potential applications in several industries. However, the synthesis of stable superhydrophobic surfaces through economical and practical processes remains a challenge. In the present work, we report on the development of an organosilicon-based superhydrophobic coating using an atmospheric-pressure plasma jet with an emphasis on precursor fragmentation dynamics as a function of power and precursor flow rate. The plasma jet is initially modified with a quartz tube to limit the diffusion of oxygen from the ambient air into the discharge zone. Then, superhydrophobic coatings are developed on a pre-treated microporous aluminum-6061 substrate through plasma polymerization of HMDSO in the confined atmospheric pressure plasma jet operating in nitrogen plasma. All surfaces presented here are superhydrophobic with a static contact angle higher than 150° and contact angle hysteresis lower than 6°. It is shown that increasing the plasma power leads to a higher oxide content in the coating, which can be correlated to higher precursor fragmentation, thus reducing the hydrophobic behavior of the surface. Furthermore, increasing the precursor flow rate led to higher deposition and lower precursor fragmentation, leading to a more organic coating compared to other cases.

Direct EPR detection of atomic nitrogen in an atmospheric nitrogen plasma jet

2020 ◽  
Vol 22 (7) ◽  
pp. 3875-3882
Author(s):  
Arpad Mihai Rostas ◽  
Loic Ledernez ◽  
Lisa Dietel ◽  
Lorenz Heidinger ◽  
Michael Bergmann ◽  
...  
Keyword(s):  
Real Time ◽  
Epr Spectroscopy ◽  
Relaxation Times ◽  
Plasma Jet ◽  
Nitrogen Plasma ◽  
Atmospheric Nitrogen ◽  
Atomic Nitrogen ◽  
Pulse Epr

A nitrogen plasma generated by a self-designed microplasma device was analyzed by cw and pulse EPR spectroscopy in real time. Nitrogen atoms were detected and characterized in terms of spectral widths, relaxation times and actual concentrations.

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