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A linear microwave plasma source has been prepared for hydrophobic and wear-resistible surface coating of carbon steel. Hydrophobic wear-resistible properties are essential for adhesive film cutting tools. Microwave power was coupled to plasma through TE10-TEM mode converter. Compared with RF capacitively couple plasmas which have long been used for hydrophobic surface treatment, microwave plasma...
An atmospheric-pressure plasma jet (APPJ) based on dielectric barrier discharge was manufactured to analyze its discharge characteristics. The APPJ was driven by 50 kHz sinusoidal waveform having peak-to-peak voltage 3–4 kV and He or Ar was used for working gases. In the APPJ system, the active species generated in the plasma such as electrons, ions, and radicals are transported along the flow channel...
An atmospheric-pressure plasma jet array source driven by a pulsed bipolar wave of several tens of kilohertz was designed and characterized. This source was assembled with each individual module. Thus, it is possible to adjust the area of treatment by arranging the number of jets. It has the potential to greatly enhance the scale of surface treatment over that of a single plasma jet. Multiple plasma...
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