کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1623808 1516413 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of heat treatment on the magnetic properties of nanocrystalline spinel Li-Ni ferrite prepared by a simple soft chemistry route
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effect of heat treatment on the magnetic properties of nanocrystalline spinel Li-Ni ferrite prepared by a simple soft chemistry route
چکیده انگلیسی
A simple soft chemistry route was developed to synthesize nanocrystalline Li-Ni ferrite (Li0.25Ni0.5Fe2.25O4). The as-prepared ferrite samples were characterized by X-ray diffractometer (XRD), transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The effects of the annealing temperature on the particle sizes and magnetic properties of the synthesized Li-Ni ferrites were investigated. The results indicated that the ferrite samples obtained by this method had the single-phase spinel structure. Particle sizes estimated from Scherrer's formula increased with the annealing temperature. The magnetic properties of the ferrite samples showed strong dependence on the annealing temperature. The coercivity initially increased and then decreased with increasing annealing temperature whereas the saturation magnetization continuously increased.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 464, Issues 1–2, 22 September 2008, Pages 370-373
نویسندگان
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