کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6616731 | 459625 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of Mg-Pr and Mg-Li-Pr alloys by electrochemical co-reduction from their molten chlorides
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work presents the electrochemical deposition of Mg-Pr and Mg-Li-Pr alloys on tungsten electrodes in molten LiCl-KCl-MgCl2-PrCl3 system. The electrochemical behavior of Mg(II), Pr(III), and Li(I) ions and alloy formation process in the melts were investigated by cyclic voltammetry (CV) and open circuit chronopotentiometry (OCP). Spherical bulk alloys were obtained by potentiostatic and galvanostatic electrolysis at â1.85 V for 3 h and â6.00 A cmâ2 for 2 h, respectively. Pr and Li contents in the alloys were regulated by changing the concentration of PrCl3 and MgCl2 in the melts. The proportion of Pr was controlled from 9.73 to 19.93 wt.% in Mg-Pr alloys and the ratio of Li changed from 0.10 to 37.27 wt.% in Mg-Li-Pr alloys. X-ray diffraction (XRD) indicated that Mg-Pr alloys were solely comprised of α-Mg and Mg12Pr phases. However, in Mg-Li-Pr alloys, the phases were transformed from Mg12Pr to Mg3Pr, accompanied by the transition of matrix (from α-Mg to β-Li). The microstructure and micro-zone chemical analysis of Mg-Pr and Mg-Li-Pr alloys were characterized by scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 107, 30 September 2013, Pages 209-215
Journal: Electrochimica Acta - Volume 107, 30 September 2013, Pages 209-215
نویسندگان
Hao Tang, Yong-De Yan, Mi-Lin Zhang, Xing Li, Wei Han, Yun Xue, Zhi-Jian Zhang, Hui He,