Fabrication of Al‐Added TiN Materials by the Combination of Double Self‐Propagating High‐Temperature Synthesis and Pulsed Electric‐Current Pressure Sintering

Crystalline phases of Al-added TiN, denoted as (Ti1−xAlx)Ny (0≤x≤0.10, 0.8 97% of theoretical) by pulsed electric-current pressure sintering. With increasing Al addition, the optimum sintering temperatures were lowered, followed by reduction of grain size. Their mechanical properties, that is, three-point bending strength σb, Vickers hardness Hv, and fracture toughness KIC were evaluated as a function of Al content.

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