MR-EMR 복합제조공정에서 환원제 위치가 탄탈륨 분말 특성에 미치는 영향

Abstract

A process known as the MR and EMR combination process is able to overcome the shortcomings of the MR (metallothermic reduction) and EMR (electronically mediated reaction) process. The effects of K2TaF7 as the raw material, sodium as the reducing agent and KCl/KF as the diluent on the characteristics of tantalum powder are investigated. In this study, a MR-EMR combination process has been employed to tantalum powder on the location of reductant. The excess of reductant were varied from 25, 50 to 75 wt %. The total charge and external circuit decreases as the amount of reductant increases. The average particle size increases with increasing the amount of reductant.