Abstract
Incorporation mechanism of the chained SiO2 particles into zinc electrodeposits have been discussed. The SiO2 particles have diameter of 30 nm and about five particles are chained. These chained SiO2 particles exist both on the (00·1)η and (10·1)η of hexagonal columnar zinc electrodeposits. The chained SiO2 particles precipitate in two ways on the (00·1)η of zinc electrodeposits: by lined up particles along the laterally growing macrosteps on the (00·1)η and by randomly dispersed particles on the (00·1)η. The sidewalls of the particles are incorporated into the macrosteps of the (00·1)η. The chained SiO2 particles randomly dispersed on the (10·1)η. These randomly dispersed chained SiO2 particles stick on the (10·1)η after macrosteps reached to the edge of the hexagonal columnar electrodeposits.
