Effect of milling conditions on the formation of ZnFe2O4 nanocrystalline

International Journal of Physical Sciences

O. M. Lemine¹ 

关键词: Zinc-Ferrite;    nanocrystalline;    ball milling;    scanning electron microscope (SEM);    X-ray diffraction.;   

DOI  :  10.5897/IJPS10.575

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

The effects of milling parameters on the formation of ZnFe2O4nanocrystalline are studied. Powder mixtures of ZnO and Fe2O3were milled in high energy vibrant ball milling for different balls to powders mass ratio and milling times. X-ray diffraction and scanning electron microscopy are used to characterize the powders.A crystalline size and lattice parameter are obtained from Scherrer formula and the Nelson–Riley function respectively. It was found that the balls to powder mass ratio plays a key role on the formation of ZnFe2O4nanocrystalline more than other parameters (type of mill and rotation speed).A spinel phase appears from 6 h of milling duration with balls to powder ratio of 10:1 butnevertheless, the Fe2O3and ZnO disappearif the milling time was further increased to 24h. For balls to powders mass ratio of 20:1, the obtained zinc ferrite phase seems to be pure after 12 h milling.The effect of the different parameters is discussed in detail.

【 授权许可】

CC BY