کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1635367 | 1007023 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spontaneous volume magnetostriction of Dy2AlFe12Mn4 compound
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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: Spontaneous volume magnetostriction of Dy2AlFe12Mn4 compound Spontaneous volume magnetostriction of Dy2AlFe12Mn4 compound](/preview/png/1635367.png)
چکیده انگلیسی
The structure and magnetic properties of Dy2AlFe12Mn4 compound have been investigated by means of X-ray diffraction and magnetization measurements. The Dy2AlFe12Mn4 compound has a hexagonal Th2Ni17-type structure. Negative thermal expansion was found in Dy2AlFe12Mn4 compound from 229 to 280 K by X-ray dilatometry. The coefficient of the average thermal expansion is
α¯=-3.8Ã10-5K-1. The magnetostrictive deformations from 105 to 270 K have been calculated by means of the differences between the experimental values of the lattice parameters and the corresponding values extrapolated from the paramagnetic range. The result shows that the spontaneous volume magnetostrictive deformation Ïs decreases from 6.2 à 10â3 to near zero with the temperature increasing from 105 to 270 K, the spontaneous linear magnetostrictive deformation λc along the c axis is much larger than the spontaneous linear magnetostrictive deformation λa in basal-plane at the same temperature except close to 249 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metals - Volume 25, Issue 1, February 2006, Pages 43-46
Journal: Rare Metals - Volume 25, Issue 1, February 2006, Pages 43-46
نویسندگان
Yanming HAO, Yan ZHOU, Miao ZHAO,