| 摘要 |
a cemented carbide substrate; an inner layer(I) and an outer layer(II). (I) comprises at least one layer of at least one of Ti carbides, nitrides, carb(oxy)nitrides, oxynitrides and boro(carbo)nitrides. (II) has a total thickness 3-20 pref. 5-20 microns and comprises Al2O3 layers each 0.01-2 microns thick and containing up to 30 vol.% dissolved TiOx, with interposed layers each 0.01-2 micron thick comprising at least one of TiC, TiN, TiCN, TiCNO, TiCO, TiNO, TiOx, Ti(B,N), Ti(B,N,C), SiC, AlN and AlON. |
