Effect of Polyhydric Alcohol Addition on Electrodeposition of Fe-Al Alloy in AlCl3-NaCl-KCl-FeCl2 Molten Salts. (10th January 2017) - Yamamoto, Hiroaki
Abstract : The effects of addition of polyhydric alcohol such as ethylene glycol (EG) or glycerin (G) on the electrodeposition of Fe-Al alloy in AlCl3 -NaCl-KCl-FeCl2 molten salts were investigated. Al content in the Fe-Al alloy electrodeposit was increased by the addition of EG or G, particularly the addition of EG was very effective. The addition of EG enable the electrodeposition of Fe-Al alloy from the molten salts with low AlCl3 /FeCl2 mole ratio. From the molten salts with 4.84 mol%EG, the Al content in the electrodeposit increased with the AlCl3 /FeCl2 mole ratio and Fe-Al alloy films containing 2.6 – 88.0 mol% Al were obtained. The cathodic currents derived from the reductions of Fe and Al ionic species were both decreased by the addition of EG, and it was considered that the decrease of Fe electrodeposition caused by the EG addition led the relative increase of Al content in the electrodeposit.