Cu–Ni–P alloy nanoparticles prepared by electrical wire explosion

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Abstract Cu–Ni–P nanoparticles were produced by electrical explosion of Cu wires coated with electroless Ni. The average composition of the coated wire was Cu 49 Ni 43 P 8 . X-ray diffraction study revealed that the explosion with a pulse voltage of 28 kV produced a single phase Cu–Ni–P solid solution the average composition of which was Cu 56 Ni 41 P 3 . The lattice parameter of Cu–Ni–P solid solution was 3.5798 A. Phosphor was reduced by evaporation during explosion. When the energy to the wire is reduced, a mixture of Cu-rich solid solution and Ni-rich solid solution was produced with increased amount of Ni 3 P phase.