Fig. 4. Main graphics analysing the view of XRD patterns of Ti₄AlB₂N samples sintered at different temperatures: (a) sample sintered at 950 °C, (b) sample sintered at 1050 °C, (c) sample sintered at 1150 °C, (d) sample sintered at 1250 °C and (e) sample sintered at 1325 °C.