کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8152446 | 1524753 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of cobalt doping on structural and magnetic characterization of nanocrystalline Fe72âxCoxCr28 (10â¯<â¯Xâ¯<â¯22) alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of cobalt doping on structural and magnetic characterization of nanocrystalline Fe72âxCoxCr28 (10â¯<â¯Xâ¯<â¯22) alloys Effect of cobalt doping on structural and magnetic characterization of nanocrystalline Fe72âxCoxCr28 (10â¯<â¯Xâ¯<â¯22) alloys](/preview/png/8152446.png)
چکیده انگلیسی
In this study, the effect of substitution of Co with Fe on structural and magnetic characteristics of nanocrystalline Fe-Co-Cr alloys has been investigated. In this regard, different combinations of Fe, Co and Cr elements with nominal composition of Fe72âxCoxCr28 (10â¯<â¯Xâ¯<â¯22) were mechanically milled and subsequently annealed in the range of 560-640â¯Â°C. The samples were characterized using X-ray diffraction, scanning electron microscopy and vibrating sample magnetometer. Based on results, during milling process Cr and Co elements have been dissolved in Fe matrix and Fe-Cr-Co solid solution (with combination of α1 and α2 spinodal phases) has been formed. The coercivity and saturation of magnetization of formed alloys were in the range of 110-187 Oe and 150-175â¯emu/g, respectively. The coercivity of Fe72âxCoxCr28 (10â¯<â¯Xâ¯<â¯22) alloys showed an anomalous behavior at 18â¯at.% of Co as a result of optimal interaction between α1 and α2 phases in this composition. The formed Fe-Co-Cr α-phase solid solutions were not stable and transformed to Ï and γ phases during annealing process at temperatures higher than 600â¯Â°C. The formation of non-magnetic Ï and γ phases had destructive effect on magnetic properties of prepared samples with different composition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 468, 15 December 2018, Pages 56-64
Journal: Journal of Magnetism and Magnetic Materials - Volume 468, 15 December 2018, Pages 56-64
نویسندگان
Elham Ghasemi, Ali Ghasemi, Morteza Hadi, Mohsen Sadeghi, Seyyed Hamid Hashemi, Majid Tavoosi, Gholam Reza Gordani,