کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1634977 1007008 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of Nd3+ on the microstructure and magnetic properties of Ni-Zn ferrites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effects of Nd3+ on the microstructure and magnetic properties of Ni-Zn ferrites
چکیده انگلیسی
Ni0.4Zn0.6Fe2−xNdxO4(x = 0-0.07) ferrites doped with different amounts of Nd2O3 were prepared using standard ceramic technique. The samples were uniaxially pressed and sintered at 1250°C for 4 h in air. The phase structure and microstructure of the samples were investigated using X-ray diffraction and scanning electron microscope, respectively. The complex permeability was measured using the impedance analyzer in the range of 1-100 MHz. The results indicate that with increasing Nd3+ content, the relative density and lattice parameter a of the sintered samples increase, whereas the real part of permeability (μ′) and the magnetic loss tangent (tan δ) decrease. The substitution of Nd3+ for Fe3+ forms a secondary phase on the grain boundary of the matrix, which strongly restrains the grain growth of the matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metals - Volume 27, Issue 3, June 2008, Pages 287-291
نویسندگان
, , , , ,