Method for marking an object made from steel, metal or a non-ferrous metal alloy, marked object obtained thereby, and use of an aqueous slurry or powder composition for marking an object made from steel, metal or a non-ferrous metal alloy

Abstract

Provided herein is a method for marking an object made from steel, metal or a non-ferrous metal alloy, the method comprising a step of applying a powder or an aqueous slurry to the object to provide for a marking, the powder or aqueous slurry comprising A an aluminium compound other than aluminium titanate and aluminium nitride, which preferably comprises one or more selected from the group consisting of aluminium oxides and aluminium hydroxides, and B particles of one or more selected from the group consisting of aluminium titanate, aluminium nitride, and oxides, hydroxides, carbides, nitrides, aluminates, and titanates of a metal or semi-metal other than aluminium, the use of such a powder or slurry for marking an object, and a marked object.

Dependencies are inferred from the claim text.