Development of Ultrasonic Pulsed Plasma Jet Source for Remote Surface Treatment

We have developed a supersonic pulsed plasma jet device capable of long-distance and high-speed processing, and investigated its basic characteristics for surface treatment applications, mainly in the material and medical fields. The developed apparatus is equipped with a mechanism to transport acti...

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Published inApplied sciences Vol. 13; no. 1; p. 444
Main Authors Ohta, Takashi, Ogasawara, Daisuke, Iwai, Takahiro, Miyahara, Hidekazu, Okino, Akitoshi
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2023
Subjects
Cameras
Carbon dioxide
Contact angle
Efficiency
Electrodes
Flow velocity
Gas flow
Gases
Glass substrates
hydrophilic effect
Nitrogen
Plasma
schlieren method
ultrasonic pulsed plasma
United States > US
Japan
Online AccessGet full text
ISSN2076-3417
2076-3417
DOI10.3390/app13010444

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Summary:We have developed a supersonic pulsed plasma jet device capable of long-distance and high-speed processing, and investigated its basic characteristics for surface treatment applications, mainly in the material and medical fields. The developed apparatus is equipped with a mechanism to transport active species in the plasma to the object to be treated by jetting the generated high-density plasma outward with supersonic pulse jets, which allows the gas flow velocity to increase significantly during pulse jetting compared with plasma generation. This enables the active species in the plasma to reach the treatment target before deactivation, thereby realizing surface treatment at a distance. Measurements using the Schlieren method revealed that the velocity of the jet flow reached Mach 1.7.
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ISSN:2076-3417
2076-3417
DOI:10.3390/app13010444