کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10129000 1645163 2019 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evolution of structural and magnetic properties of nickel oxide nanoparticles: Influence of annealing ambient and temperature
ترجمه فارسی عنوان
تکامل خواص ساختاری و مغناطیسی نانوذرات اکسید نیکل: تأثیر دمای محیط و دمای آنیلینگ
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
Nickel oxide (NiO) nanoparticles (NPs) are synthesized using the sol-gel method. The effect of annealing atmosphere type, including air, O2 and annealing temperature (TA) on the structural, morphological and magnetic properties of NiO NPs was investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM), and vibrating sample magnetometer (VSM) analysis. For this purpose, NiO NPs are annealed at 400, 500, 600, 700 and 800 °C. The magnetic properties of the NPs change as a result of increasing crystallite size in terms of TA in both atmospheres. These variations are different according to the type of the annealing atmosphere. At lower temperatures (TA < 600 °C), the NPs that annealed in the O2 atmosphere have higher crystallinity, larger lattice constant, and lower magnetization and coercivity. At higher temperatures, the structural and magnetic properties of the samples in both atmospheres are more similar.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 383-390
نویسندگان
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