کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10624970 989613 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural and magnetic properties of Mg-substituted NiZnCo ferrite nanopowders
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Structural and magnetic properties of Mg-substituted NiZnCo ferrite nanopowders
چکیده انگلیسی
Mg-substituted NiZnCo ferrite nanopowders, Ni0.5−xZn0.5MgxCo0.1Fe1.9O4 (0≤x≤0.20), were synthesized by sol-gel auto-combustion method. The effect of Mg substitution on the structural and magnetic properties have been investigated. X-ray diffraction and vibrating scanning magnetometer were used to characterize the structural and magnetic properties. XRD revealed single-phase of cubic spinel. Both average crystallite size and lattice parameter increase with increasing Mg substitution. The saturation magnetization initially increases with the increase of Mg substitution when x≤0.05, and decreases when x>0.05, which indicates excessive nonmagnetic cations in tetrahedral site will decrease the superexchange interaction between tetrahedral and octahedral sites. The decrease in the coercivity values with increasing Mg substitution indicates the decrease of magnetocrystalline anisotropy energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 9, Part A, November 2014, Pages 13917-13921
نویسندگان
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