Co-Deposition of Al–Ni Alloy in NiCl₂-AlCl₃-1-ethyl-3-methylimidazolium Bromide ([EMIM]Br) Ionic Liquid

Abstract

Al-Ni Alloys were obtained from NiCl2-AlCl3-1-ethyl-3-methylimidazolium bromide ([EMIM]Br) ionic liquid at room temperature. The analysis of Al-Ni alloys that co-deposited at different potentials for 2h were performed using Scanning Electron Microscopy (SEM) and X-ray diffraction analysis (XRD). It appears that Ni has been rapidly solidified in the alloys and homogeneous Al-Ni alloys can be obtained at room temperature. As increasing the overpotential, the amount of Ni in the alloys was decreased whereas the amount of Al was increased. The chloride pitting potentials of alloys with the molar ratio of NiCl2/AlCl3/[EMIM]Br 0.03:2:1 was approximately 0.3 V more than pure Al.

A Review on the Electrodeposition of Aluminum and Aluminum Alloys in Ionic Liquids

“…Few examples include the surface pretreatment of substrates such as copper [83], where which were conducted outside the glove box while an electrochemical etching pretreatment via anodic polarization of certain substrates such as stainless steel (Grade: 316L) substrates was performed inside the glove box, prior to aluminum deposition [84]. The literature largely covers substrates such as glassy carbon [70,85], platinum [31], which are often used at lab scale and can be pretreated by simple and easy procedures.…”

“…The cost required for the makeup is calculated and presented considering the volume of individual constituents that are required to be added to prepare 100 L fresh IL solution by considering the IL systems from the references [7,30,31,[35][36][37]57,72,76,77,81] and the value of each constituent is calculated based on the known market price. From the figure, it is interesting to note from Figure 8 that make up cost for ChCl:urea-based IL is the least among the other ILs, followed by imidazolium-based ILs evidencing the economic competitiveness of choline-based ILs besides technical.…”

Progress in Novel Electrodeposited Bond Coats for Thermal Barrier Coating Systems

“…Despite the exhaustive development of the electrodeposition of Al-alloys such as Al-Ti [ 79 , 80 , 81 ], Al-Ni [ 82 ], Al-Hf [ 83 ], and Al-Zr [ 84 ] from ionic liquids, the possible formation of diffusion aluminides, their resistance against oxidation, hot corrosion and possible applications in TBC systems are yet to be studied. Moreover, the ability to electroplate turbine blades and large components with Al and Al-alloys employing economic IL-based systems requires proper control of the structure to improve the performance of the coatings produced through this technology.…”