Formation of Dy-Fe alloy films by molten salt electrochemical process
Formation of Dy-Fe alloy films by molten salt electrochemical process
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DOI：
10.1016/s0013-4686(02)00323-7
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发表时间：
2002-08-15
影响因子：
6.6
通讯作者：
Ito, Y
中科院分区：
文献类型：
--
作者：
Konishi, H;Nohira, T;Ito, Y
研究了773 K下熔融LiCl-KCl-DYCl 3（0.50 mol%）体系中Dy-Fe合金膜的电化学形成。Dy金属在Mo电极上的沉积电位为0.47 V（vs. Li+/Li）。在新鲜Fe电极上重复电位扫描处理可有效提高Dy-Fe合金的形成速率。使用通过重复电位扫描处理活化的Fe电极，通过在0.55V下的恒电位电解形成DyFe 2膜。然而，合金膜很薄并且不粘附。在0.40 V阴极电沉积Dy粉后，通过0.55 V恒电位阳极电解在活化的Fe电极上形成粘附的DyFe 2膜。通过使用类似的程序，在0.68 V下形成Dy 6 Fe 23。（2/11）Dy 6 Fe 23 +Dy（III）+3e（-）可逆箭头（23/11）DyFe 2的平衡电势估计为0.62 V。2002爱思唯尔科技有限公司版权所有。
The electrochemical formation of Dy-Fe alloy films was investigated in a molten LiCl-KCl-DYCl3 (0.50 mol%) system at 773 K. The deposition potential of Dy metal was 0.47 V (vs. Li+/Li) at a Mo electrode. Repetition of the potential sweep treatment at a fresh Fe electrode was effective in increasing the rate of formation of Dy-Fe alloys. Using an Fe electrode activated by repetition of the potential sweep treatment, a DyFe2 film was formed by potentiostatic electrolysis at 0.55 V. However, the alloy film was thin and not adhesive. An adhesive DyFe2 film was formed at the activated Fe electrode by potentiostatic anodic electrolysis at 0.55 V after cathodically electrodepositing Dy meal at 0.40 V. By using a similar procedure, Dy6Fe23 was formed at 0.68 V. The equilibrium potential for (2/11)Dy6Fe23+Dy(III)+3e(-)reversible arrow(23/11)DyFe2 was estimated as 0.62 V. (C) 2002 Elsevier Science Ltd. All rights reserved.