Abstract
The effect of Cr3C2 additive was investigated on the sintering process of TiB2. The 5-7.5wt% of Cr3C2 well functioned to improve the relative density, the bending strength and Vickers hardness. According to the X-ray diffraction data, TiC and CrB were formed at the grain boundaries of TiB2, Also, the solid solution between TiB2 and Cr3C2 was recognized. The SEM observation supported that a liquid phase was significantly concerened in the sintering of TiB2. The sintering behaviour of TiB2 was discussed on the microstructural and compositional viewpoints.
