Deionized water, methanol, and ethanol were investigated for their effectiveness at dissolving LiCl-KCl-UCl3 at 25, 35, and 50℃ using inductively coupled plasma mass spectrometry (ICP-MS) to study the concentration evolution of uranium and mass ratio evolutions of lithium and potassium in these solvents. A visualization experiment of the dissolution of the ternary salt in solvents was performed at 25℃ for 2 min to gain further understanding of the reactions. Aforementioned solvents were evaluated for their performance on removing the adhered ternary salt from uranium dendrites that were electrochemically separated in a molten LiCl-KCl-UCl3 electrolyte (500℃) using scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS). Findings indicate that deionized water is best suited for dissolving the ternary salt and removing adhered salt from electrodeposits. The maximum uranium concentrations detected in deionized water, methanol, and ethanol for the different temperature conditions were 8.33, 5.67, 2.79 μg·L-1 for 25℃, 10.62, 5.73, 2.50 μg·L-1 for 35℃, and 11.55, 6.75, and 4.73 μg·L-1 for 50℃. ICP-MS analysis indicates that ethanol did not take up any KCl during dissolutions investigated. SEM-EDS analysis of ethanol washed uranium dendrites confirmed that KCl was still adhered to the surface. Saturation criteria is also proposed and utilized to approximate the state of saturation of the solvents used in the dissolution trials.

상업용 자동차 축전지 극판재료로 각형의 초정 Pb 재료에 적은 부피 분율의 Cu상을 가지는 Pb-Cu 합금을 응고시킬 때 각형의 초정 Cu 수지상이 석출되었다. 중요한 응고변수인 냉각속도와 Cu조성의양에 따른 각형의 Cu상의 형태변화를 조사하기 위하여 Pb-1wt%Cu, pb-3wt%Cu, Pb-5wt%Cu, Pb-9wt%Cu, Pb-12wt%Cu, 등의 5가지 합금이 선택되어 노냉, 공냉, 금형냉, 수냉의 4가지 냉각방법을 이용하여 실험하였다. 일반적으로 냉각속도와 Cu성분이 증가함에 따라 Cu상의 각형정도가 감소하였으며 결국 가장 빠른 냉각인 수냉각시에는 수지상 형태가 정출되지 않고 구형의 형태가 정출 되었다.