Hochtemperaturstabiler Metallemitter sowie Verfahren zur Herstellung

摘要

The invention relates to a metal emitter consisting of a metallic base body (1) and of a metallic surface structure (2) having spaces (2a) situated in a periodic arrangement. When heated, said metal emitter emits radiation with an intensity distribution, which is influenced by the surface structure (2), over a wavelength range. The invention also relates to a method for producing this metal emitter. The metal emitter is characterized in that a coating made of a temperature-stable material is applied to the base body (1) inside the spaces (2a) of the metallic surface structure (2) and/or between the surface structure (2) and the metallic base body (1). At a temperature of 900 DEG C or 1000 DEG C or higher, this material has a vaporization rate of less than 50 nm per year. The inventive metal emitter has high long-time stability.