Method for the nanostructuring of ceramic, glass, carbon, boron, silicon and compound materials

The method for producing a surface having surface structures with dimensions in a submicrometer range, is claimed. The surface comprises a material including ceramic, inorganic glasses, carbon, boron, silicon, inorganic fibers and/or fibrous carbon and/or boron nitride containing composite material with ceramics and/or carbon matrix, ceramic composite material or a composite material from a metal and/or a metal alloy, and/or a heat conducting carbonaceous material and/or particles. The material has an output surface, which does not have surface structures. The method for producing a surface having surface structures with dimensions in a submicrometer range, is claimed. The surface comprises a material including ceramic, inorganic glasses, carbon, boron, silicon, inorganic fibers and/or fibrous carbon and/or boron nitride containing composite material with ceramics and/or carbon matrix, ceramic composite material or a composite material from a metal and/or a metal alloy, and/or a heat conducting carbonaceous material and/or particles. The material has an output surface, which does not have surface structures with dimensions in the submicrometer range and is accessible to a laser radiation to produce the surface structures. The outer surface is scanned with the laser beam for many times such that adjacent light spots abut or overlap expressing in a given specification. The laser beam is present in outside at a pressure of 0-15 bars and a temperature of -50[deg] C to 350[deg] C, and has a permeability (epsilon ) of 0.1-1700, a pulse length of 1-800 ns, a peak pulse power of 1-1800 kW, an outgoing power of 5-28000 W and a repetition rate of 10-3000 kHz. The surface is not pre-treated or purified before the irradiation with the laser beam. A scanning speed is 30-19000 mm/s. A diameter of the laser beam on the surface is 20-4500 mu m. An independent claim is included for a workpiece.