Cu-Mo nanocomposite preparation by combining solution combustion synthesis and self propagating high temperature synthesis

Abstract

Cu-Mo composite powders were produced by combining solution combustion synthesis and self-propagating high-temperature synthesis. In the first stage a homogeneous nanocomposite powder comprising molybdenum dioxide and copper with average particle size of 50 nm was produced using ammonium heptamolybdate, copper nitrate as precursors and citric acid as a chelating reagent. At the second stage Cu-Mo nanocomposite preparation was performed by reduction of MoO2+Cu mixture with Mg + C combined reducer at a relatively moderate thermal conditions. The relationship between combustion peculiarities, phase composition and microstructural features were examined.