Method for manufacturing alloy powders based on zirconium and hafnium, alloyed with the elements ni, cu, ta, w, re, os and ir

摘要

Preparation of alloy powder, based on titanium, zirconium and hafnium, alloyed with the elements of nickel, copper, tantalum, tungsten, rhenium, osmium and iridium, comprises: (a) mixing oxides of titanium, zirconium and/or hafnium, and metal powder of the above elements with a reducing agent; (b) heating the mixture in an oven in argon atmosphere, optionally under hydrogen atmosphere until reduction reaction is initiated; and (c) leaching and subsequently washing and drying the reaction product, where the used oxide has an average particle size of 0.5-20 mu m. Preparation of alloy powder, based on titanium, zirconium and hafnium, alloyed with the elements of nickel, copper, tantalum, tungsten, rhenium, osmium and iridium, comprises: (a) mixing oxides of titanium, zirconium and/or hafnium, and metal powder of the above elements with a reducing agent; (b) heating the mixture in an oven in argon atmosphere, optionally under hydrogen atmosphere (that forms metal hydrides) until the reduction reaction is initiated; and (c) leaching and subsequently washing and drying the reaction product, where the used oxide has an average particle size (according to Fisher subsieve sizer) of 0.5-20 mu m, a specific surface area (according to Brunauer, Emmett and Teller) of 0.5-20 m 2/g and a minimum content of 94 wt.%.