Effect of the grain size on magnetic properties of nanocrystalline CoFe2O4 ferrite

Yin Liu, Fan Fei Min, Tai Qiu, Jin Bo Zhu, Ming Xu Zhang

科研成果: 书/报告/会议事项章节会议稿件同行评审

4 引用 (Scopus)

摘要

Nanocrystalline CoFe2O4 ferrite have been synthesized by a spraying-coprecipitation method. X-ray diffraction (XRD) and Transmission electron microscope (TEM) confirmed the formation of single-phase CoFe 2O4 ferrite nanoparticles in the range 10 nm ∼ 100 nm depending on the calcining temperature. The magnetic measurements show that specific saturation magnetization of nanocrystalline CoFe2O 4 ferrite increases from 36.1 A·m2·kg -1 to 88.6 A·m2·kg-1 as grain size increases from 12 nm to 98 nm. The coercivity shows a peak with grain size, peaking at around 43 nm. The magnetic behaviour of nanocrystalline CoFe 2O4 ferrite might be attributed to the effects of surface and random anisotropy.

源语言英语
主期刊名Advanced Design Technology
685-688
页数4
DOI
出版状态已出版 - 2011
活动2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 - Guangzhou, 中国
期限: 16 9月 201118 9月 2011

出版系列

姓名Advanced Materials Research
308-310
ISSN(印刷版)1022-6680

会议

会议2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011
国家/地区中国
Guangzhou
时期16/09/1118/09/11

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