| 摘要 |
A coated cutting tool comprising substrate and a coating, wherein the coating comprises a layer of MTCVD TiCN, and a layer of ±- Al 2 O 3 , wherein the ±- Al 2 O 3 layer exhibits an X-ray diffraction pattern, as measured using CuK± radiation, wherein the (hkl) reflections used are (012), (104), (110), (113),(116), (300), (214) and (0 0 12), and wherein TC(0 0 12) is higher than 5 and a full width half maximum (FWHM) of a rocking curve peak of the (0 0 12) plane of the ±- Al 2 O 3 is lower than 30°. |
