Formation of ZnO/Ni_0.6Zn_0.4O Mixture Using Mechanical Milling of Zn-NiO

Abstract

Mixtures of Zn-NiO with stoichiometric compositions were milled for different times in open-valve milling cups. Although the gradual reduction of nickel oxide with zinc occurred during one hour of milling, it was found that nanometric mixtures of ZnO and Ni 0.6 Zn 0.4 O appear after 72000 seconds (20 hrs) of milling with the crystallite size of Ni 0.6 Zn 0.4 O phase being about 22 nm. On the other hand, and under the ow of argon gas, narrow and intense peaks of ZnO and Ni 0.6 Zn 0.4 O were observed after isothermal heating of 1800 seconds milled samples at 1273 K. Electron microscopy observations and elemental analysis of the products con rm formation of ZnO nano-needles distributed in the nickel zinc oxide matrix.

Influence of CuO Nanoparticles on the Structure, Thermal, Physical, and Mechanical Properties of MgO–NiO Nanoparticles

“…Figure 1, d shows formation MgNiO 2 compound with availability of MgO. These results agree with the results of researchers [10]. Copper oxide does not appear in XRD due to little addition from it and the XRD apparatus does not fumble the copper oxide.…”