A set of processes for preparing metal powders, including metal alloy powders, by ambient temperature reduction of a reducible metal compound by a reactive metal or metal hydride through mechanochemical processing. The reduction process includes milling reactants to induce and complete the reduction reaction. The preferred reducing agents include magnesium and calcium hydride powders. A process of pre-milling magnesium as a reducing agent to increase the activity of the magnesium has been established as one part of the invention.
This invention was funded in part by the United States Department of Energy under Subcontract No. CCS-588176 under Subcontract No. LITCO-C95-175002 under Prime Contract No. DE-AC07-941D13223. The United States government has certain rights in the invention.