کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8152971 | 1524761 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study on the preparation of spinel ferrites with enhanced magnetic properties using limonite laterite ore as raw materials
ترجمه فارسی عنوان
مطالعه آماده سازی فریت های اسپینل با خواص مغناطیسی افزایش یافته با استفاده از سنگ معدن لایتونیت لاتیت به عنوان مواد اولیه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
Preparation of spinel ferrites using limonite laterite ore as raw materials was proposed. The effect of Zn substitution on the structure, magnetic properties of as-prepared spinel ferrites were systematically characterized and discussed. The results show that single-phase spinel ferrite was directly synthesized from the precursor solution with the leaching temperature and leaching acid concentration of 200â¯Â°C and 2.25â¯mol·Lâ1, respectively, and after calcination at 1000â¯Â°C for 2â¯h. Moreover, single-phase of spinel ferrites with different Zn substitution contents (xâ¯=â¯0.00, 0.05, 0.23, 0.35, 0.47, 0.58) could be also obtained. All the lattice constant (a), average grain sizes (d) and X-ray density (Dx) increase with increasing Zn substitution content. With Zn substitution content increasing from 0.00 to 0.58, the saturation magnetization (Ms) value increased from 34.0 to 65.9â¯emu·gâ1 for xâ¯=â¯0.35, and then decreased to 50.7â¯emu·gâ1 while the coercivity (Hc) value decreased from 50â¯Oe to 14â¯Oe. This paper provides a pathway for comprehensive utilization of limonite laterite ore and synthesis of spinel ferrites with excellent magnetic performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 460, 15 August 2018, Pages 213-222
Journal: Journal of Magnetism and Magnetic Materials - Volume 460, 15 August 2018, Pages 213-222
نویسندگان
Jian-ming Gao, Fangqin Cheng,