Enhanced alumina layer with texture

摘要: A refined method to produce textured α-Al 2 O 3 layers in a temperature range of 750-1000° C. with controlled texture and substantially enhanced wear resistance toughness than the prior art is disclosed. The layer formed on bonding (Ti,Al)(C,O,N) increasing aluminium content towards outer surface. Nucleation obtained through nucleation step composed short pulses purges Ti-containing oxidizing steps. has thickness ranging from 1 20 μm columnar grains. length/width ratio alumina grains 15, preferably 6 10. characterised by strong (110) growth texture, measured using XRD, low intensity (012), (104), (113), (024) (116) diffraction peaks.