کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438581 | 1398185 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrothermal synthesis, magnetic properties and characterization of CoFe2O4 nanocrystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Magnetic cobalt ferrite (CoFe2O4) nanocrystals were synthesized via the hydrothermal method and the crystallite size was measured using Sherrer's equation. Instrumental broadening was a significant parameter for determining crystallite size. The effect of annealing time and calcination on crystallite size and magnetic properties was discussed. It was found that the coercivity was highly dependent on the crystallite size. As the crystallite size increased from 61 to 68.2Â nm, room temperature coercivity increased from 1488Â Oe to 1700Â Oe, while high coercivity (5.2Â kOe) was achieved at lower temperature (80Â K). It was found that the presence of hematite could affect the crystallite size after calcination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 10, July 2017, Pages 7889-7894
Journal: Ceramics International - Volume 43, Issue 10, July 2017, Pages 7889-7894
نویسندگان
Seyedehmaryam Moosavi, Sarani Zakaria, Chin Hua Chia, Sinyee Gan, Nor Aziawati Azahari, Hatika Kaco,