Electrolytic production of Cu-Ni alloys in CaCl2-Cu2S-NiS molten salt

2018 ◽  
Vol 28 (10) ◽  
pp. 2143-2150 ◽  
Author(s):  
Levent KARTAL ◽  
Servet TIMUR
Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2113
Author(s):  
Yaru Peng ◽  
Zeng Chen ◽  
Ying Bai ◽  
Qingqing Pei ◽  
Wei Li ◽  
...  

The electrochemical behaviors of Al(III) deposits on Ni substrates were investigated in LiCl-KCl-AlCl3 (2 wt.%) molten salts. Various electrochemical methods, including cyclic voltammetry (CV), square wave voltammetry (SWV), and open circuit chronopotentiometry (OCP) were used to explore the deposition processes of Al(III) on Ni substrates. Five kinds of Al-Ni alloys phase were firstly electrodeposited by the regulation of deposition potential form LiCl-KCl-AlCl3 (2 wt.%) molten salts at 753 K. The formation of Al-Ni alloys, such as AlNi3, Ni5Al3, AlNi, Al3Ni2, and Al3Ni were confirmed by X-ray diffractometer (XRD) and the cross-section morphologies were investigated by scanning electron microscope (SEM). Meanwhile, it was found that the temperature of molten salt was another key parameter for the controlling of alloys phase. No Al-Ni alloys phase other than AlNi3 and Ni5Al3 could be deposited at 703 K.


2010 ◽  
Vol 654-656 ◽  
pp. 799-802 ◽  
Author(s):  
Mi Seon Choi ◽  
Chang Kyu Lee ◽  
Go Gi Lee ◽  
Sung Koo Cho ◽  
Jae Young Jung

The electrolytic production of magnesium from magnesium chloride containing sodium chloride-rich melts has been studied using mono-polar cell, where originally designed in consideration of current efficiency and energy consumption. The magnesium was formed well at the surface of cathode and floated at the free surface of the molten salt, and chlorine gas was generated at the anode without any inverse reaction between the magnesium which is produced electrolysis process. The magnesium was collected about 200 g/hr by operating an optimized mono-polar cell with 500 A for 24 hours. The metallic magnesium produced from this study had a high purity with 99.92 %.


2016 ◽  
Vol 75 (15) ◽  
pp. 17-33 ◽  
Author(s):  
T. Nohira ◽  
A. Ido ◽  
T. Shimao ◽  
X. Yang ◽  
K. Yasuda ◽  
...  

Author(s):  
Anna C. Fraker

Small amounts of nickel are added to titanium to improve the crevice corrosion resistance but this results in an alloy which has sheet fabrication difficulties and is subject to the formation of large Ti2Ni precipitates. These large precipitates can serve as local corrosion sites; but in a smaller more widely dispersed form, they can have a beneficial effect on crevice corrosion resistance. The purpose of the present work is to show that the addition of a small amount of Mo to the Ti-1.5Ni alloy reduces the Ti2Ni precipitate size and produces a more elongated grained microstructure. It has recently been reported that small additions of Mo to Ti-0.8 to lw/o Ni alloys produce good crevice corrosion resistance and improved fabrication properties.


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