Abstract
Electrical resistance of titanium and its alloys, which were resistance-sintered with various conditions, was measured. Effects of resistance-sintering condition, particle size, alloying powders etc. on the electrical resistivity p were thought to be fairly sensitive. The electrical resistance and the mechanical properties of resistance-sintered titanium depend upon the density ratio in the case of lower density ratio than 96% (theoretical), and upon the oxygen content in higher density ratio than 96% (theoretical). p of resistance-sintered titanium alloys depends upon the microstructure, and, increases with alloying, as well as the tensile strength. Electrical resistivity at the last resistance-sintering stage, ρ*, which was calculated by using the wave shapes of current and voltage measured during resistance-sintering of titanium powder, agrees with the bulk resistivity of titanium at high temperature.
