LASER PLASMOTRON FOR DEPOSITION OF COMPOSITE DIAMOND COATINGS

摘要

FIELD: electricity.;SUBSTANCE: plasmotron contains a continuous CO₂-laser, input block for forming the working gas mixture Ar/CH₄/H₂, a focusing lens mounted in said block in the path of laser radiation, a gas nozzle, and a reaction chamber. The reaction chamber has a node for introducing nano-/microfunctional particles in the form of gas-dust jet. The mentioned node is installed with the ability to move along the surface of the reaction chamber in laser plasma flow and with the possibility of supplying a gas-dust jet across the aforementioned flow in the region of laser radiation focus or below mentioned focus area in the direction of flow of laser plasma. As a result of particles input node ability to move along the surface of the reaction chamber of plasmotron, it is possible to clean and activate the surface of particles, the partial ablation (evaporation) of particles with a decrease in their average size, full evaporation of particles up to atomic condition.;EFFECT: improving the functional characteristics of conventional diamond coatings, forming a relatively thick coating, increasing their deposition rate.;1 dwg