Electrochemical Preparation of Mg-Li-Al-Er Alloys by Co-reduction in Molten Chloride
来源期刊：Acta Metallurgica Sinica2013年第4期
论文作者：Yi SUN Milin ZHANG Wei HAN Mei LI Yusheng YANG Yongde YAN Meng ZHANG
文章页码：455 - 460
摘 要：The electrochemical behavior of Mg,Li,Al and Er were investigated by electrochemical techniques in LiClKCl-MgCl2-AlCl3-ErCl3 melts at 823 K.The cyclic voltammetry and chronopotentiometry indicated that the co-reduction of Mg,Li,Al and Er occurs at current densities more negative than-0.89 A.cm-2.Er（III） under-potential deposited on pre-reduced Al electrode formed Al-RE alloys.X-ray diffraction（XRD） results indicated that Mg17Al12,Al2Er,Al2Er3 and Al4Li9 phases were prepared by galvanostatic electrolysis.ICP analyses of samples showed that lithium and aluminum contents of Mg-Li-Al-Er alloys could be controlled by concentration of AlCl3 and cathodic current density.
Yi SUN，Milin ZHANG，Wei HAN，Mei LI，Yusheng YANG，Yongde YAN，Meng ZHANG
Key Laboratory of Superlight Materials and Surface Technology,Ministry of Education,College of Materials Science and Chemical Engineering,Harbin Engineering University
摘 要：The electrochemical behavior of Mg,Li,Al and Er were investigated by electrochemical techniques in LiClKCl-MgCl2-AlCl3-ErCl3 melts at 823 K.The cyclic voltammetry and chronopotentiometry indicated that the co-reduction of Mg,Li,Al and Er occurs at current densities more negative than-0.89 A.cm-2.Er（III） under-potential deposited on pre-reduced Al electrode formed Al-RE alloys.X-ray diffraction（XRD） results indicated that Mg17Al12,Al2Er,Al2Er3 and Al4Li9 phases were prepared by galvanostatic electrolysis.ICP analyses of samples showed that lithium and aluminum contents of Mg-Li-Al-Er alloys could be controlled by concentration of AlCl3 and cathodic current density.
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