Abstract
In the present study, the powder metallurgy route was used to successfully incorporate Ni-coated carbon nanotubes into Sn-Ag-Cu solder, to form a nanocomposite solder. Nanoindentation tests were performed on both composite and Sn-Ag-Cu solder samples to investigate their creep behaviour at room temperature. Characterization results revealed that with the addition of Ni-coated carbon nanotubes, the creep behaviour of composite solder improved significantly as compared to that of the unreinforced solder alloy. Moreover, increasing the maximum load from 20 mN to 100 mN increased the percentage reduction in creep strain rate from 4% to 28%, for the composite compared to its monolithic counterpart after 300 s of holding.
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