| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coated substrate and a method of manufacturing the same. <P>SOLUTION: The coating includes at least one layer of either titanium oxycarbonitride or titanium aluminum oxycarbonitride, such that the layer in which a percent ratio of oxygen atoms to titanium atoms is in the range of about 0.01 to about 0.09 and aluminum atoms to titanium atoms is in the range of about 0 to about 0.1, respectively. The coating has a hardness ratio to Young's modulus ratio of at least 0.06. The substrate may be a cutting insert. The method of manufacturing the coated substrate is also disclosed in which a coating layer containing titanium oxycarbonitride or titanium aluminum oxycarbonitride are deposited by MT-CVD (Medium Temperature - Chemical Vapor Deposition) on a substrate in the temperature range of about 750 to about 950°C using a mixture of gases wherein a ratio of the hydrogen gas to the nitrogen gas is greater than 5. <P>COPYRIGHT: (C)2012,JPO&INPIT |
