کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10629219 991044 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural and magnetic properties of Ca-Mn-Zn-substituted M-type Sr-hexaferrites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Structural and magnetic properties of Ca-Mn-Zn-substituted M-type Sr-hexaferrites
چکیده انگلیسی
The crystalline phases, microstructure, and magnetic properties of Ca-Mn-Zn-substituted M-type Sr-hexaferrites have been investigated with respect to the doping level of Ca, and various additives. Ca-Mn-Zn-substituted M-type Sr-hexaferrites, Sr1-xCaxFe11.8Mn0.1Zn0.1O19 (0 ≤ x ≤ 1.0) were synthesized by solid-state reaction. The solubility limit of Ca into the M phase, x, was found to be ∼0.5. The maximum saturation magnetization of 74.9 emu/g could be obtained at x = 0.3 (Sr0.7Ca0.3Fe11.8Mn0.1Zn0.1O19), which is higher than that of non-substituted SrFe12O19 by 3.2%. For the optimal composition of the calcined powder, Sr0.7Ca0.3Fe11.8Mn0.1Zn0.1O19, sintering processes were performed with various kinds of additives including SiO2, Mn3O4, ZnO, Co3O4, Al2O3, La2O3, and SrCO3. The better hard magnetic performances in the sintered samples of Sr0.7Ca0.3Fe11.8Mn0.1Zn0.1O19 could be achieved than in the non-substituted SrFe12O19 when the kind and amount of sintering additives were effectively controlled.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 36, Issue 14, November 2016, Pages 3383-3389
نویسندگان
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