METHOD FOR IDENTIFYING LASER SINTERING POWDERS WITH MARKERS CONSISTING OF SALTS OF RARE EARTH METALS

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A method is presented which makes it possible to identify powders that can be used as construction materials in a layer manufacturing method, such as a selective laser sintering method. For this purpose, the powder is mixed with at least one salt of a rare-earth metal, wherein the salt has the property of exhibiting luminescence when bombarded with photons having a wavelength outside of the visible spectrum or with particle radiation. Therefore, components produced by the layer manufacturing method can be identified with regard to the manufacturer, production site or production date.