Aluminium composite coatings containing micrometre and nanometre-sized particles electroplated from a non-aqueous electrolyte

The electrolytic codeposition of micro- and nano-sized particles with aluminum from a nonaqueous electrolyte is investigated. SiC, SiO2, Al2O3, TiB2 and hexagonal BN particles were codeposited with aluminium from an AlCl3/dimethylsulfone (DMSO2) electrolyte. The effect of particle concentration and current density on the codeposition rate of SiO2 with aluminium was investigated. The codeposition of the various particles with Al from AlCl3:DMSO2 solutions is very high. The amount of codeposited particles is Langmuir dependent on the particle concentration in the electrolyte. In contrast, the effect of the current density on the amount of codeposited SiO2 is small.