Abstract: A soldering method in which abrasive particles, in particular cubic boron nitride, are applied in a matrix composed of a solder material and are intended to have better adhesion in the matrix material. The particle which includes an abrasive particle, in particular of cubic boron nitride, is coated with a metal. A method for producing a layer on a substrate, wherein a solder material is applied as metallic matrix material such with particles, in particular solder material in the form of a soldering paste, a soldering tape, a solder powder, by an application method, in particular by a welding process or a thermal spraying process.

Abstract: A welding method using coated abrasive particles, coated abrasive particles, coating system and sealing system which uses particles, in which a hard material layer is applied around abrasive particles such as cubic boron nitride (cBN) and protects against oxidation during welding. The hard material compound in the coating may include a carbide, in particular titanium carbide. A sealing system is composed of stator and rotor blade having the layer system.