Self-propagating high-temperature synthesis of highly dispersed titanium-carbide phase from powder mixtures in the aluminum melt

摘要

The self-propagating synthesis (SHS) of titanium carbide particles in an aluminum melt made from a mixture of titanium and carbon powders with the addition of a chloride-containing flux, aluminum, or haloid salt (Na2TiF6) during the fabrication of the Al-10% TiC alloy is investigated. It is shown that the use of these additives makes it possible to reduce the size of synthesized particles of the TiC carbide phase to ultradispersed (0.17-0.35 mu m) and nanosize (smaller than 0.1 mu m) levels.