کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5459849 | 1516189 | 2017 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ferromagnetism and diamagnetism behaviors of MgO synthesized via thermal decomposition method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
MgO powders were synthesized by a thermal decomposition method which was determined by differential scanning calorimetry coupled with thermogravimetric analysis (TG/DSC). The starting material, Mg(OH)2, was calcined at 400 °C, 450 °C and 500 °C for 1 h each to obtain the MgO powders. Phase composition, morphology and magnetic properties at room temperature of calcined powders were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), fourier transform infrared Spectroscopy (FTIR) and vibrating sample magnetometer (VSM), respectively. Both Mg(OH)2 and MgO phases were found in all calcined powders. The combination of ferromagnetism and diamagnetism at room temperature of all powders were observed. It is believed to be attributed to Mg vacancies and defect in the MgO and Mg(OH)2 structures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 705, 25 May 2017, Pages 668-674
Journal: Journal of Alloys and Compounds - Volume 705, 25 May 2017, Pages 668-674
نویسندگان
Atchara Khamkongkaeo, Napat Mothaneeyachart, Panus Sriwattana, Thanachai Boonchuduang, Thanawat Phetrattanarangsi, Chonnakan Thongchai, Burimpak Sakkomolsri, Adulphan Pimsawat, Sujittra Daengsakul, Santi Phumying, Narong Chanlek, Pinit Kidkhunthod,