Plasma applications are disclosed that operate with argon and other molecular gases at atmospheric pressure, and at low temperatures, and with high concentrations of reactive species. The plasma apparatus and the enclosure that contains the plasma apparatus and the substrate are substantially free of particles, so that the substrate does not become contaminated with particles during processing. The plasma is developed through capacitive discharge without streamers or micro-arcs. The techniques can be employed to remove organic materials from a substrate, thereby cleaning the substrate; to activate the surfaces of materials, thereby enhancing bonding between the material and a second material; to etch thin films of materials from a substrate; and to deposit thin films and coatings onto a substrate; all of which processes are carried out without contaminating the surface of the substrate with substantial numbers of particles.

A system for plasma ignition and maintenance of an atmospheric pressure plasma. The system has a variable frequency alternating current (AC) power source, a transformer, a cable connected to a secondary winding of the transformer, a programmed microprocessor for control of power to the atmospheric pressure plasma. The microprocessor is configured to a) at pre-ignition, power the AC power source at an operational frequency f.sub.op higher than the resonant frequency f.sub.r, b) decrease the operational frequency f.sub.op of the AC power source until there is plasma ignition, and c) after the plasma ignition, further decrease the operational frequency f.sub.op of the AC power source to a frequency lower than the resonant frequency f.sub.r.

A suspension coating system using an atmospheric pressure plasma generator includes a support that fixedly supports a substrate, a plasma generator that generates active species through plasma discharge, and includes a nozzle unit of which at least a portion is disposed to face the substrate, and a suspension providing device that transfers a suspension including nanoparticles and a binder to one side of the nozzle unit.

An atmospheric pressure linear RF plasma source having an enclosure enclosing a chamber in the form of an extended slot having a width W, a length L, and a thickness T, with W≥20T, the enclosure having a top opening for receiving a flow of a working gas in the direction of the length L and a bottom opening for delivering a flow of plasma, with the bottom opening being open to atmospheric pressure. Then walls of the enclosure comprise a dielectric material. Two mutually opposing pancake coils are positioned on opposite sides of the enclosure and are capable of being driven by an RF power source in an opposing phase relationship. Alternatively, an elongated solenoid coil may surround the enclosure.

Provided is a plasma device for applying a cold atmospheric plasma to a surface to be treated, in particular on textiles, leather and/or plastic fibers. The plasma device includes a housing, a plasma source in the housing, and a voltage source in the housing for applying a voltage to the plasma source, wherein the plasma device is configured to enable activation of the plasma source and/Oor to selectively switch the plasma source on only if a distance between the plasma source and the surface to be treated is within a predetermined distance.

A device and a method for fabricating a ceramic reinforced composite coating based on plasma remelting and injection. The device includes a plasma cladding assembly, a powder feeding assembly, a metal-based substrate, and a thermal infrared imager. The plasma cladding assembly comprises a plasma gun and a plasma generator. A plasma arc generated is used to heat the substrate and form a molten pool on the substrate. The powder feeding assembly comprises a powder feeder configured to feed ceramic particles to the molten pool through a powder feeding copper tube. The thermal infrared imager is configured to acquire an infrared image of the molten pool and acquire an optimal injection position of the ceramic particles according to the infrared image. The optimal injection position is a midpoint between a trailing edge of the plasma arc emitted on the substrate and a trailing edge of the molten pool.

The invention relates to a flat flexible coating arrangement comprising a coating surface (9) for placing on a body region of a living being and at least one electrode (3, 3′) arranged above the coating surface (9), and a dielectric (1) containing the at least one electrode (3, 3′), the at least one electrode (3, 3′) comprising a supply line for an AC high voltage in order to form a dielectrically impeded plasma. Said arrangement enables fusion processes over the course of the plasma treatment and optionally wound healing without removing the coating arrangement from the body region by means of at least one built-in sensor (14) for determining at least one parameter of the body region.

Method for coating a glass syringe body for a hypodermic pre-filled glass syringe, wherein at least one emulsion and/or one solution containing at least one layer-forming substance is applied to at least one inner surface of the hypodermic pre-filled glass syringe, which defines an axial direction, wherein at least a partial surface of the inner surface in a syringe cone of the pre-filled glass syringe is subsequently exposed to a plasma, wherein a negative pressure source is arranged in relation to the syringe cone in the axial direction opposite the atmospheric-pressure plasma source, wherein a negative pressure of less than atmospheric pressure is provided by means of the negative pressure source.

The present disclosure relates to an arc ion coating device and a coating method. The arc ion coating device includes: a vacuum chamber with a vacuum environment inside; an arc generation component disposed in the vacuum chamber and comprising a cathode target, an anode and an arc starter, the cathode target being columnar and configured to release plasmas, and the arc starter being disposed between the cathode target and the anode and configured to generate charged particles to guide a generation of an arc between a side of the cathode target and the anode to coat a workpiece; a support frame disposed in the vacuum chamber, the support frame being disposed at a side of the anode away from the cathode target and configured for a placement of the workpiece; and a power supply component comprising an arc power supply and a first accumulator, the arc power supply having a first output end and a second output end, the first output end being configured to output a pulsed voltage and connected to the arc starter, the second output end being configured to output an adjustable DC voltage and charge the first accumulator, and a negative pole and a positive pole of the first accumulator being connected to the cathode target and the anode, respectively.

Disclosed is an activation device. The activation device, which serves as a device coming into contact with an object to activate surrounding materials according to a dielectric barrier discharge principle, includes: a dielectric having a predetermined thickness and formed with an outer surface coming into contact with the object and an inner surface facing the outer surface; and an electrode provided inside the dielectric and having an outer surface facing the inner surface of the dielectric, wherein the outer surface of the electrode includes a contact area that comes into contact with the inner surface of the dielectric, and a non-contact area that does not come into contact with the inner surface of the dielectric.