| 摘要 |
The invention relates to a tool with a main part made of hard metal, cermet, ceramic, steel, high-speed steel, and a single-or multilayer wear protection coating which is applied onto the main part in a CVD method and which has a thickness ranging from 3 μιη to 25 μιη. The wear protection coating has at least one Ti1-xAlxCyNz layer with the stoichiometric coefficients 0.70 ≤ x < 1.0 ≤ y < 0.25 and 0.75 ≤ z < 1.15 and with a thickness ranging from 1.5 μm to 17 μm. The invention is characterized in that the Ti1-xAlxCyNz layer has a lamellar structure with lamellae with a thickness of no more than 150 nm, preferably no more than 100 nm, particularly preferably no more than 50 nm, wherein the lamellae are made of periodically alternating regions of the Ti1-xAlxCyNz layer with alternatingly different stoichiometric proportions of Ti and AI, having the same crystal structure (crystallographic phase), and the Ti1-xAlxCyNz layer has at least 90% vol.% of a face centered cubic (fcc) crystal structure. |
