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首页> 外文期刊>American journal of applied sciences >The Effect of Milling Time on Ni0.5Zn0.5Fe2O4 Compositional Evolution and Particle Size Distribution | Science Publications
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The Effect of Milling Time on Ni0.5Zn0.5Fe2O4 Compositional Evolution and Particle Size Distribution | Science Publications

机译：研磨时间对Ni0.5Zn0.5Fe2O4成分演变和粒度分布的影响科学出版物

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> Problem statement: This study involved an investigation to ascertain the diffusion of NiO and ZnO into the tetrahedral and octahedral sites using mechanical alloying method. The effect of mechanical alloying towards particle size was also reported. Approach: NiO, ZnO and Fe2O3 precursors were mechanically alloyed to synthesis ultrafine powders of Ni0.5Zn0.5Fe2O4. Various milling times were employed to study the effect of milling time on the materials. The ultrafine powder was sampled after each milling time and further characterized using XRD to investigate the phases of the powder and the crystallite size, SEM for the morphology and TEM for particle size investigation. Results: The XRD spectra indicated the precursors reacted during milling with the diffusion of ZnO and followed by NiO into their respective crystallographic sites. SEM micrographs showed the agglomeration of powders due to high energy milling and TEM images proved the particles of the materials were of nanosize. Conclusion: It was concluded that samples prepared using mechanical alloying technique appear to be a potential method for large production due to the possible reduction of cost and also reduction of particle size against milling time.
机译： > 问题陈述：本研究涉及一项研究，以通过机械合金化方法确定NiO和ZnO扩散到四面体和八面体位置。还报道了机械合金化对粒度的影响。 方法：将NiO，ZnO和Fe 2 O 3 前体机械合金化以合成Ni 0.5 Zn超细粉末 0.5 Fe 2 O 4 。使用各种研磨时间来研究研磨时间对材料的影响。在每个研磨时间后对超细粉末进行取样，并使用XRD对其进行进一步表征，以研究粉末的相和微晶尺寸，用于形貌的SEM和用于颗粒尺寸的TEM。 结果： XRD光谱表明，前驱物在研磨过程中发生了反应，其中ZnO扩散，随后是NiO扩散到各自的晶体学位点。 SEM显微照片显示，由于高能研磨导致粉末发生团聚，而TEM图像证明材料的颗粒为纳米级。 结论：结论是，使用机械合金化技术制备的样品由于可能降低了成本，并且随着制粉时间的缩短而减小了尺寸，因此似乎是一种潜在的大批量生产方法。

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