| abstract |
A method for producing an object (40) with a first surface region and a second surface region with a different coefficient of friction using a treatment chamber suitable for carrying out PVD methods, preferably with a rotatable carrier for the object or several such objects, with at least two PVD coating processes (22, 26) can be carried out simultaneously in the treatment chamber, the first PVD coating process being carried out with a comparatively directed steam flow from a target or from a plurality of targets which consist of one or more of the elements B, Si, Ti, V , Cr, Zr, Nb, Mo, Hf, Ta and W, carbides of the elements mentioned and carbon exists or exist, and the second PVD coating process (60) is carried out with a comparatively less directional or non-directional steam flow of carbon. |