Component having a dye-containing ceramic layer, and process for their preparation

The invention relates to a component (12) having a surface (13) forming layer (11) consisting of several layers (14a, 14b) is constructed. According to the invention it is provided that only certain layers (14b) of the layer (11) with nanoparticles (15b) of a specific dye or more particular dyes are provided. This has the advantage that the event of wear (18), the colored layers (14b) come to light and thus can be performed by a simple visual inspection of the state of wear of the layer (11) has the advantage. Furthermore, the invention relates to a method for producing such layers are preferably formed from pre-ceramic precursors.