Titanium powders have been used successfully in a wide range of near shape PM applications, and in recent years the demand for finer titanium powders for PIM applications has increased significantly. Dr Colin McCracken and Dan Barbis of Reading Alloys Inc. review the latest developments in the manufacture of finer titanium powders using the hydride-dehydride (HDH) process. They also review the impact of raw materials and particle size distribution on both the powder morphology and powder chemistry