Abstract
Sn coatings were widely used in electronic and device industries due to their unique properties. Sn–TiO2 sol-enhanced nanocomposite coatings were prepared in order to improve the mechanical properties of Sn coatings. The microstructure, mechanical properties and conductivity of sol-enhanced Sn–TiO2 nanocomposite coatings were systematically investigated. The results show that after adding an optimum quantity of TiO2 nanoparticles, the nanohardness of Sn–TiO2 coatings was increased by 75% while the conductivity remained unaltered when compared with a pure Sn coating. The effect of TiO2 sol addition on the properties of coatings was discussed.
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