An atmospheric pressure plasma jet (APPJ) sustained by a pulsed arc (PAA) transferred on an electrically conducting surface was operated with mean power of 700 W, pulse frequency 60 kHz, and gas mixture N2 H2 up to 10% H2, flowing at 30 70 SLM. It shown that the bridge ignited between grounded injector floating substrates can be used for electrical grounding. This allowed transfer such substrat...

In this study, we propose a rapid plasma-assisted nitriding process using H2/N2 mixture gas in an atmospheric pressure plasma jet (APPJ) system to treat the surface of SKD11 cold-working steel order increase its hardness. The generated NH radicals region are used implement ion-bombardment for tempered martensite structure within 18 min form functional nitride layer with increased microhardness ...

The properties of non-thermal atmospheric pressure plasma jets (APPJs) make them suitable for industrial and biomedical applications. They show many advantages when it comes to local precise surface treatments, there is interest in upgrading their performance irradiation on large areas uneven surfaces. generation charged species (electrons ions) reactive (radicals), together with emitted UV pho...

Flammability properties of plasma pretreated cotton fabrics subjected to flame-retardant treatment were studied. Plasma pretreatment, using an atmospheric pressure plasma jet (APPJ), was applied to cotton fabrics to enhance material properties, while retaining inherent advantages of the substrates. An organic phosphorus compound (flame-retardant agent, FR) together with a melamine resin (crossl...

In this work, we employ pulse voltage to drive an atmospheric pressure plasma jet (APPJ) in Helium, and consider mainly the evolution of discharge inside tube. Specifically, effects rising edge on are studied through simulation experiment. The spatiotemporal electron density, ionization source, temperature excited helium atom evaluated. Besides, mechanism affecting rise time is analyzed by para...

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The employment of atmospheric pressure plasma jets (APPJs) in a large sort applications is limited by the adversities related to size treated area and difficulty reach target. use devices that employ long tubes their structure has contributed significantly overcome these challenges. In this work, two different systems employing jet transfer technique are compared. main difference between how pl...

Cold atmospheric pressure plasma jets (APPJs) are able to generate chemically reactive species desired for material processing and biomedical applications. A great amount of attention has been devoted to characterizing these APPJ sources and expanding their applications. Less is known on the interaction mechanisms between cold atmospheric pressure plasma and material surfaces. Since both plasma...