کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8002071 | 1516283 | 2014 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Key step in the synthesis of ultrafine strontium ferrite powders (SrFe12O19) by sol-gel method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Key step in the synthesis of ultrafine strontium ferrite powders (SrFe12O19) by sol-gel method Key step in the synthesis of ultrafine strontium ferrite powders (SrFe12O19) by sol-gel method](/preview/png/8002071.png)
چکیده انگلیسی
Submicron strontium hexaferrite (SrFe12O19) particles were synthesized using the sol-gel route. Magnetic properties and structure of strontium ferrite powders were studied at various ranges of calcination temperature (Tca) (750-900 °C), calcination time (3 min-2 h), Fe/Sr molar ratios (RM) (10.5-12), and pH (1-8). The resultant particles were investigated using X-ray diffraction, scanning electron microscopy, and vibrating sample magnetometer. At 750 °C, the Sr-M phase could be obtained for 3 min in air. However, single-phase Sr-M, which had stabilized magnetic properties, was obtained at Tca of 850 °C for 2 h. In solutions at pH 1, magnetic properties of the obtained sample at RM = 10.5 were found to be optimal with maximum saturation magnetization of 56 emu/g and intrinsic coercive force of 6.7 kOe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 610, 15 October 2014, Pages 630-634
Journal: Journal of Alloys and Compounds - Volume 610, 15 October 2014, Pages 630-634
نویسندگان
Tran Thi Viet Nga, Nguyen Phuc Duong, To Thanh Loan, Than Duc Hien,