کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9796556 | 1514949 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanostructured CuO-α-Fe2O3 solid solution obtained by high-energy ball milling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Nanostructured CuO-α-Fe2O3 solid solution obtained by high-energy ball milling Nanostructured CuO-α-Fe2O3 solid solution obtained by high-energy ball milling](/preview/png/9796556.png)
چکیده انگلیسی
The mixture of α-Fe2O3 and CuO crystalline powders in equimolar ratio was subjected to high-energy ball milling to investigate the solid solution process in this system. The phase evolution in the system during the milling was studied by means of X-ray diffraction and Mössbauer spectroscopy. It was found that nanostructured solid solution of CuO-α-Fe2O3 with a corundum structure was obtained. Within the solid solution, there existed a gradient distribution of concentration of CuO from the surface to the interior of α-Fe2O3. The dissolution of CuO in the α-Fe2O3 greatly lowered the Néel temperature of α-Fe2O3, which resulted in paramagnetism of the as-milled solid solution whose Mössbauer spectrum showed a doublet absorption line at room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 392, Issues 1â2, 15 February 2005, Pages 179-183
Journal: Materials Science and Engineering: A - Volume 392, Issues 1â2, 15 February 2005, Pages 179-183
نویسندگان
J.S. Jiang, X.L. Yang, L. Gao, J.K. Guo,