PRODUCTION OF IRON DISILICIDE

摘要

PURPOSE: To remarkably improve the production efficiency due to no need of high-temperature melting and sufficient heat treatment at a relatively low temperature and in a short time. CONSTITUTION: A raw material is prepared so as to provide 1:>2.0 and 1:<=3.0 atomic ratio Fe:Si of iron to silicon contained in a raw material powder and the mechanical alloying is carried out until the iron in the raw material is consumed to <=20% in a method for producing a β-phase iron disilicide comprising mechanically alloying iron and silicon and then heat-treating the resultant alloy. Thereby, the α- and ε-phase iron silicides are produced and subsequently heat-treated.