METHOD FOR PRODUCING ALLOY POWDER USING MOLTEN SALT REACTION BATH

摘要

PROBLEM TO BE SOLVED: To provide a method for producing an alloy powder, which greatly reduces the necessity of preparing a high-purity alloying component metal to be added as a raw material for producing the alloy powder, has a few numbers of production steps, and can greatly shorten a reaction period of time when producing the alloy powder.;SOLUTION: The method for producing the alloy powder formed of two or more metals by using a molten salt includes: (a) a step of preparing the molten sa (b) a step of supplying particles of a metal (A) to become a core of an alloy particle to the molten salt, and a step of dissolving a metal (B) which is nobler (has smaller ionization tendency) than the metal (A) into the molten sa and (c) a step of depositing the metal (B) on the surface of the particles of the metal (A) through a displacement reaction of the metal (A) with an ion of the metal (B), and simultaneously alloying the metal (A) and (B) through a mutual diffusion which occurs from the surface of the particle of the metal (A).;COPYRIGHT: (C)2009,JPO&INPIT