Method for producing a coated substrate body, substrate body comprising a coating and use of the coated substrate body
AssigneeKennametal Widia Produktions GmbH & Co. KG
InventorsVolkmar Sottke, Doris Lenk, Hartmut Westphal, Hendrikus Van Den Berg
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Abstract
The invention relates to a method for producing a coated substrate body by chemical vapor deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are ≧250 m/min.
Claims15
A method for producing in a gas atmosphere a coated substrate body by CVD Deposition of at least one layer composed of a carbon nitride of a metal from Groups IVa through VIa of the periodic table, the method comprising the step of providing at least one organic nitrogen carrier selected from the group consisting of a nitrile, an amine, a heterocyclic hydrocarbon containing a nitrogen heterocyclic atom, and mixtures thereof and at least one monocyclic hydrocarbon as an organic carbon carrier in the gas atmosphere, wherein the ratio of the organic nitrogen carrier to the organic carbon carrier is 1:2 to 1:10.
Dependencies are inferred from the claim text.