Fabrication processing of TiB₂ using pressureless sintering was studied with special emphasis on the effect of doping Ni₇Zr₂. The pore-free compacts were obtained by the addition of extreme small amount of Ni₇Zr₂ under the condition of heating at 2100°C for 1 h in vacuum (-0.13 Pa). The prosity of obtained specimens were below 10^-3 volume percent.