Magnesium thermal nano-sized powders of the chromium subgroup metals

Abstract

A method for magnesium vapor reduction of the double oxides of chromium subgroup metals at low static pressure and dynamical vacuum was used. The study results of the production and investigation of tungsten, molybdenum, chromium, W-Cr mix and Mo-W alloy powders are presented. The specific surface area of the resulting powders was in the range from 14 to 41 m2•g-1. The average crystalline grain size estimated from the value of the range of coherent X-ray scattering was 8-40 nm.