文章基本信息

标题：Effect of calcination temperature on structural and magnetic properties in cobalt ferrite nano particles
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作者：Budi Purnama ; Agung Tri Wijayanta ; Suharyana 等
期刊名称：Journal of King Saud University - Science
印刷版ISSN：1018-3647
出版年度：2019
卷号：31
期号：4
页码：956-960
DOI：10.1016/j.jksus.2018.07.019
语种：English
出版社：Elsevier
摘要：AbstractWe discuss the calcination temperature dependence of the structural and magnetic properties of co-precipitated cobalt ferrite. Calcination process was performed under atmospheric condition without inert gas. High-purity cobalt ferrite nanoparticles are obtained experimentally. The size of the crystallites increases with the increase of the calcination temperature. Furthermore, the XRD analysis result show that cation redistribution occurs with the increase of the calcination temperature. The SEM result show that the structural organization of these particles changes from separate nanoparticles to the formation of compact granules with increasing calcination temperature. As a result, the saturation magnetization increases with the calcination temperature, reaching up to 62.30 emu/g. It was found that the cation distribution for both tetrahedral and octahedral sites affected by the calcination temperature.
关键词：Saturation magnetisation;Cobalt ferrite nanoparticles;Compact granules