Fundamental studies on electrochemical processing light weight alloys
AuthorVelu, Palani T
AdvisorReddy, Ramana G.
Mining & Metallurgical Engineering
StatisticsView Usage Statistics
The electrochemical synthesis of aluminum-lithium alloys by a novel in-situ processing was investigated. The electrolyte used was LiF-CaF2 with lithium compounds, Li20 and Li2C03. Lithium obtained by dissociation of its compounds deposited into the liquid aluminum cathode at the bottom. The fundamental parameters studied were: (l) solubility of lithium compounds; (2) anodic overvoltages of LiF-CaF2 electrolyte; (3) Liquidus temperatures of the electrolytes. The solubility was found to increase from 11.42 wt % at 1078 K to 14.77 wt % at 1133 K for Li20. For Li2C03 it increased from 2.95 wt % at 1063 K to 7.57 wt % at 1093 K. Anodic overvoltages were measured as a function of current density and reaction mechanisms were analyzed. A limiting current density phenomenon was observed at 0.011 A/cm2 for the LiF-CaF2-Li2C03 and at 0.52 A/cnr for LiF-CaF2-Li20 systems. The liquidus temperatures of the electrolyte saturated with the lithium compounds were determined.
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.