METHOD FOR MANUFACTURING IRON-TITANIUM CARBIDE COMPOSITE POWDER BY MECHANICAL ACTIVATION PROCESS

摘要

The present invention relates to a method for manufacturing iron-titanium carbide composite powder by a mechanical activation process which includes a step (step 1) which mixes and grinds an iron oxide and a carbon oxide; a step (step 2) which reduces the iron oxide by thermally treating the mixture ground at the step 1; a step (step 3) which mixes and grinds the mixture thermally treated at the step 2 and titanium hydride (TiH2); and a step (step 4) which produces iron-titanium carbide (Fe-TiC) by thermally treating the mixture ground at the step 3. According to the present invention, the iron-titanium carbide composite powder can be manufactured at lower costs in comparison with an existing method as an iron oxide, TiH2, Fe-TiC, and carbon powder, which are relatively cheap and which can be easily obtained, are utilized as starting substances. Furthermore, the reactivity of the powder is increased as titanium carbide which is hard to grind through a mechanical activation process are mixed and ground with titanium hydride, carbon powder having fragility which can be finely ground without directly grinding titanium carbide so that the present invention provides a green process capable of excellently saving energy by remarkably decreasing the reduction temperature and the synthesis temperature of iron oxide.;COPYRIGHT KIPO 2014;[Reference numerals] (S110) Mechanical activation step; (S120) Reduction-thermal treatment step; (S130) Re-grinding step; (S140) Composition-thermal treatment step