Functional coating and process for its production, in particular for wear protection, corrosion protection or for temperature isolation

摘要

Production of a functional coating on a substrate comprises dispersing a functional material in a matrix solution having a liquid component and a phosphate, then applying the dispersion in the form of a coating on the substrate. The coating is converted into a functional coating having an inorganic matrix phase and an integrated functional material by heat treatment. ??An Independent claim is also included for the functional coating produced. ??Preferably the liquid component is water or a mixture of water with an organic solvent, especially an alcohol or a glycol. The functional material is a powdered functional material having an average particle size of 10 nm to 5 microns or a fibrous or whisker-like functional material. The functional material is made from a metal, polymer, graphite, hard material such as a metal nitride, a metal oxide, metal carbide, metal carbonitride, a dry lubricant or a ceramic, especially Si, ZrO2, Al2O3, SiO2, TiO2, TiN, Teflon, PTFE, polyethylene, polyamide, boron nitride, silicon nitride, MoS2, MoSi2 or chromium oxide.