DocumentCode :
742351
Title :
Characteristic and Application Study of Cold Atmospheric-Pressure Nitrogen Plasma Jet
Author :
Xin Liu ; Faze Chen ; Shuai Huang ; Xiaolong Yang ; Yao Lu ; Wenlong Zhou ; Wenji Xu
Author_Institution :
Key Laboratoryfor Precision & Nontraditional Machining Technol., Dalian Univ. of Technol., Dalian, China
Volume :
43
Issue :
6
fYear :
2015
fDate :
6/1/2015 12:00:00 AM
Firstpage :
1959
Lastpage :
1968
Abstract :
Atmospheric-pressure discharge plasma is a promising tool for many applications due to its enhanced plasma chemistry. In this paper, a low-temperature atmospheric-pressure nitrogen plasma jet generated by bare metal electrode´s discharge is reported. The typical electrical and optical characteristics of the atmospheric-pressure plasma jet (APPJ) are studied. Optical emission spectrum shows that excited OH, NO, N2(C-B), N2+ (B-X), N2(B-A), and O emissions are produced by the plasma jet. When the applied voltage is 2.5 kV, the vibrational and rotational temperatures of the APPJ are, respectively, 2275 and 325 ± 5 K. Hydrophilic treatment of the superhydrophobic aluminum surface is also presented, and the results show that the wettability of the APPJ-treated areas is obviously improved, which was mainly due to the slight morphological changes and the incorporation of oxygen-containing functional groups. A pumpless antigravity water transport on APPJ-induced wettability contrast patterning surface is also presented to show the potential applications of the APPJ hydrophilic treatment of metals. These results demonstrate the application prospects of bare electrode´s discharge plasma jet, especially in metal-based smart surface fabrications.
Keywords :
aluminium; discharges (electric); hydrophilicity; luminescence; nitrogen; plasma diagnostics; plasma jets; plasma materials processing; plasma temperature; plasma-wall interactions; rotational states; surface morphology; surface treatment; vibrational states; wetting; Al; N2; cold nitrogen plasma jet; electrical characteristics; electrode discharge plasma jet; enhanced plasma chemistry; hydrophilic treatment; low-temperature nitrogen plasma jet; metal electrode discharge; metal-based smart surface fabrications; morphological changes; optical emission spectrum; oxygen-containing functional groups; plasma jet-induced wettability contrast patterning surface; pressure 1 atm; pumpless antigravity water transport; rotational temperature; superhydrophobic aluminum surface; temperature 2275 K; vibrational temperature; voltage 2.5 kV; Discharges (electric); Electrodes; Nitrogen; Plasma temperature; Surface treatment; Temperature measurement; Atmospheric-pressure plasma jet (APPJ); hydrophilic; liquid transport; nonequilibrium plasma; open microfluidic; smart surface; smart surface.;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/TPS.2015.2427852
Filename :
7108040
Link To Document :
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