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

Cu-Ni-P nanoparticles were produced by electrical explosion of Cu wires coated with electroless Ni. The average composition of the coated wire was Cu49Ni43P8. X-ray diffraction study revealed that the explosion with a pulse voltage of 28 kV produced a sing le phase Cu-Ni-P solid solution the average composition of which was Cu56Ni41P3. The lattice parameter of Cu-Ni-P solid solution was 3.5798 angstrom. 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 Ni3P phase. (C) 2007 Elsevier B.V. All rights reserved.