期刊
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
卷 31, 期 4, 页码 956-960出版社
ELSEVIER
DOI: 10.1016/j.jksus.2018.07.019
关键词
Saturation magnetisation; Cobalt ferrite nanoparticles; Compact granules
资金
- Direktorat Riset dan Pengabdian Masyarakat Direktorat Jenderal Penguatan Riset dan Pengembangan Kementerian Riset, Teknologi, dan Pendidikan Tinggi, Indonesia [089/SP2H/LT/DRPM/2018]
We discuss the calcination temperature dependence of the structural and magnetic properties of coprecipitated 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. (C) 2018 Production and hosting by Elsevier B.V. on behalf of King Saud University.
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