ZrN is a recurring well-known coating, primarily used for aluminum processing. Alone, it performs well as a base layer, but it is too expensive to replace the TiN. Supplemented with carbon nitride, it is currently experiencing a renaissance as a top lubricating layer that is over coated on a hard base layer.
The combination of TiB2 and ZrN is interesting for machining aluminum, whereby the usual 2 layers are doubled.
We were able to achieve particularly excellent results when milling (Fig. 4) superalloys (e.g. Nimonic) using the layer combination nA(T)CRo+Zr(C)N and BorAC+Zr(C)N [user: Siemens, Budapest]

One of the foremost advantages of PLATIT coating systems is their ability to easily program coating structures and compositions. Therefore application oriented hard coatings can be developed

In the case of hard materials the wear resistant nACRo or BorAC base coatings increase wear and thermal resistance, meanwhile the chemically inert Zr(C)N top layer helps to reduce material sticking up..

• for hard to machineable materials
• superalloys
• to reduce sticking up of material