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액체음극에서의 금속 수지상 성장 억제를 위한 교반기 성능평가
김시형,윤달성,유영재,백승우,심준보,안도희,Kim, Si-Hyung,Yoon, Dal-Seong,You, Young-Jae,Paek, Seung-Woo,Shim, Joon-Bo,Ahn, Do-Hee 한국방사성폐기물학회 2009 방사성폐기물학회지 Vol.7 No.2
An electrolytic system (zinc anode-gallium cathode) was setup to evaluate the performance of several stirrers prepared for this study, where stirrers have been used to prevent uranium from forming dendrite on the cathode in pyrochemical process. In the case of no-stirring condition, zinc dendrites began to grow on the gallium surface in 1 hour and some dendrite grew out of the cathode crucible around 6 hours. When a rectangular stirrer or a tilt stirrer was rotated, at 40${\sim}$150 rpm, to mix the liquid gallium cathode, dendritic growth of zinc metal was prevented irrespective of revolution speed, but some of the deposits overflowed out of the cathode crucible owing to the large centrifugal forces at 150 rpm. The harrow stirrer did not nearly retard the dendrite growth at 40 rpm, but the dendrite growth was retarded at higher than 100 rpm and the zinc deposits also did not overflow at 150 rpm. Pounder could also prevent the dendrite growth to some extent but it had some difficulties in operation compared with other types of stirrers.