Electrolytic preparation of Al-Ca master alloy on liquid Al cathode

摘要

As a newly developing superplastic aluminum alloy, Al-Ca alloys has been widely used in industry, however the technology for preparing Al-Ca master alloy an its influencing factors need to be further studied. Therefore, the Al-Ca master alloy was prepared by using liquid aluminum cathode and a mixture of 80/100CaCl_2-18/100 KCl-2/100 CaF_2 as the molten salt electrolysis in a laboratory electrolyte cell; the effects of electrolysis temperature, cathodic current density and elec- trolytic duration on current efficiency and Ca content of Al-Ca alloys as well were studied.