In the metallothermic reduction (MR) process used to obtain tantalum powder in one batch, it is difficult to control the morphology and location of the tantalum deposits. On the other hand, an electronically mediated reaction (EMR) process is capable of overcoming this difficulty. The effect of using as the raw material and sodium as the reducting agent on the characteristics of tantalum powder are investigated. As the temperature of the reduction varied from 1023K to 1223K, the powder particles obtained with MR were relatively large , while those prepared via EMR were of uniform . In the MR process, the Ta powder recovery rate increased from 37% to 83% at 1123K in constrat with EMR process.

• 박형호 | Park Hyeoung-Ho
• 윤재식 | Yoon Jae-Sik
• 배인성 | Bae In-Sung
• 김양수 | Kim Yang-Soo
• 윤동주 | Yoon Dong-Ju
• 원대희 | Won Dae-Hee
• 김병일 | Kim Byung-Il