Abstract
In this paper, the possibility of production of Cu-NiO nano-composite powder using mechanochemical reaction was studied. Cu-
NiO nano-composite powder was produced by high energy ball milling of CuO and Ni powder mixture. Structural and
morphological evolutions were characterized by X-ray diffraction and scanning electron microscopy. Particular attention has
been paid to the reaction mechanism. The reaction was initiated after about 1.5h and with continuing of milling up to 5h, NiO
was formed completely in the nanocrystalline Cu matrix. It was found that, the crystallite size of Cu in the final product were
92nm. Formation of Cu2O and Cu(Ni) solid solution, as intermediate phases, have been observed during the reaction.
Furthermore, ultrafine Cu-NiO composite powder had relatively agglomerated structure.
AbstractIn this paper, the possibility of production of Cu-NiO nano-composite powder using mechanochemical reaction was studied. Cu-NiO nano-composite powder was produced by high energy ball milling of CuO and Ni powder mixture. Structural andmorphological evolutions were characterized by X-ray diffraction and scanning electron microscopy. Particular attention hasbeen paid to the reaction mechanism. The reaction was initiated after about 1.5h and with continuing of milling up to 5h, NiOwas formed completely in the nanocrystalline Cu matrix. It was found that, the crystallite size of Cu in the final product were92nm. Formation of Cu2O and Cu(Ni) solid solution, as intermediate phases, have been observed during the reaction.Furthermore, ultrafine Cu-NiO composite powder had relatively agglomerated structure.
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