A modular plasma jet treatment system comprising a plasma source with a high-voltage module comprising a high-voltage electrode and first connection means, as well as a plasma jet applicator wherein the plasma jet applicator comprises a cavity for a process gas, wherein a ceiling portion of the cavity is either arranged on the plasma jet applicator and/or on the high-voltage module, the cavity comprising a process gas inlet and at least one plasma jet outlet, wherein the plasma jet applicator comprises a second connection means, such that the plasma jet applicator and the high-voltage module are repeatedly connectable and releasable, wherein, when the plasma jet applicator is connected to the high-voltage module, the cavity is adjacently arranged with the ceiling portion at the high-voltage module, and wherein the cavity is separated by a dielectric from the high-voltage electrode of the high-voltage module.

A method of producing fibers includes exposing an inorganic composition to a plasma plume, where the plasma plume has a temperature of at least 1500° C. and a bulk velocity of at least 350 m/s. A system for producing fibers includes a plasma torch to produce the plasma plume and a feeding device to introduce the inorganic composition to the plasma plume.

An atmospheric pressure plasma generating device includes a nozzle block in which fourth gas passages from which plasma gas is emitted are formed, is covered by cover, and a through-hole is formed in the cover such that the leading end of the fourth gas passage is positioned on the inside. Heated gas is supplied inside the cover and is emitted from the through-hole of the cover, and plasma gas is emitted so as to penetrate the heated gas. By the plasma gas being surrounded by the heated gas in this manner, deactivation of the plasma gas is prevented. A distance between the leading end of the fourth gas passage and an opening of the through-hole at an outer wall of the cover is set from 0 to 2 mm in an emission direction of the plasma gas.

An atmospheric pressure plasma generating device includes a nozzle block in which fourth gas passages from which plasma gas is emitted are formed, is covered by cover, and a through-hole is formed in the cover such that the leading end of the fourth gas passage is positioned on the inside. Heated gas is supplied inside the cover and is emitted from the through-hole of the cover, and plasma gas is emitted so as to penetrate the heated gas. By the plasma gas being surrounded by the heated gas in this manner, deactivation of the plasma gas is prevented. A distance between the leading end of the fourth gas passage and an opening of the through-hole at an outer wall of the cover is set from 0 to 2 mm in an emission direction of the plasma gas.

Methodologies, systems, and devices are provided for producing metal spheroidal powder products. By utilizing a microwave plasma, control over spheriodization and resulting microstructure can be tailored to meet desired demands.

Methodologies, systems, and devices are provided for producing metal spheroidal powder products. By utilizing a microwave plasma, control over spheriodization and resulting microstructure can be tailored to meet desired demands.

A hollow electrode assembly through which gas from a gas supply can pass and be effused across the casing of the electrode for supplying a gas for a plasma discharge. The gas passing the electrode goes from a higher gas pressure environment inside the electrode to a lower gas pressure environment on the outside of the electrode. The casing of the electrode through which the gas effuses can be a metal or metal allow which provides for a controlled flow of the gas through the wall. The flow rate of the gas can be controlled by one or more of the porosity of the metal or metal alloy used, the type of gas used, the pressure differential between the inside and outside of the electrode, and the temperature of the system. The electrode assembly can be used in and high temperature plasma generators.

A hollow electrode assembly through which gas from a gas supply can pass and be effused across the casing of the electrode for supplying a gas for a plasma discharge. The gas passing the electrode goes from a higher gas pressure environment inside the electrode to a lower gas pressure environment on the outside of the electrode. The casing of the electrode through which the gas effuses can be a metal or metal allow which provides for a controlled flow of the gas through the wall. The flow rate of the gas can be controlled by one or more of the porosity of the metal or metal alloy used, the type of gas used, the pressure differential between the inside and outside of the electrode, and the temperature of the system. The electrode assembly can be used in and high temperature plasma generators.

Embodiments of arc plasma cutting torches are disclosed. In one embodiment, a plasma cutting torch includes an insert component located substantially between a cathode body and an insulator body. The insert component is able to withstand high temperatures and can be made of a metal material or a non-metal material. The insert component can be permanent within the torch or can be replaceable, in accordance with various embodiments.

Embodiments of arc plasma cutting torches are disclosed. In one embodiment, a plasma cutting torch includes an insert component located substantially between a cathode body and an insulator body. The insert component is able to withstand high temperatures and can be made of a metal material or a non-metal material. The insert component can be permanent within the torch or can be replaceable, in accordance with various embodiments.