A process to produce niobium-50mass% titanium alloy powder is proposed and its
applicability is examined experimentally. The oxide mixture
(Nb2O5+TiO2) was exposed to the reductant calcium, which can be applied
thermodynamically as either the liquid or the gaseous form. Ca gas was favorable
for the contamination of impurity such as carbon. The anhydrated
co-precipitation from the aqueous solution involving Nb5+ and Ti4+ formed the
better uniformity in the obtained alloy powder. The addition of CaCl2 reduced
the residual oxygen to the level of 0.15mass pct because the by-product CaO
partially dissolved in the molten CaCl2.