کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1572447 | 1514427 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and magnetic properties of mechanically milled Y1âxPrxCo5 compounds [x = 0, 0.1, 0.3, 0.5]
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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: Structural and magnetic properties of mechanically milled Y1âxPrxCo5 compounds [x = 0, 0.1, 0.3, 0.5] Structural and magnetic properties of mechanically milled Y1âxPrxCo5 compounds [x = 0, 0.1, 0.3, 0.5]](/preview/png/1572447.png)
چکیده انگلیسی
Samples of composition Y1âxPrxCo5 (x = 0, 0.1, 0.3, 0.5) were arc melted in an argon atmosphere, mechanically milled for various times and heat treated at about 1073 K for short periods of time, in order to obtain nanocrystalline compounds. The X-ray diffraction patterns after the heat treatment indicated a single hexagonal 1:5 phase for each composition. The unit cell parameters varied with Pr content in the Y1âxPrxCo5 series. The crystallite size determined from transmission electron micrographs was about 13 nm. The intrinsic coercivity increased with Pr content; a maximum coercivity of 1.17 MA/m and an enhanced relative remanence magnetization to maximum magnetization ratio Ïr/Ïmax = 0.71 were achieved after heat treatment for the composition Y0.5Pr0.5Co5. The enhanced magnetic properties suggest strong intergranular exchange coupling in this composition, consistent with the very fine crystallite size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 58, Issues 8â9, AugustâSeptember 2007, Pages 805-808
Journal: Materials Characterization - Volume 58, Issues 8â9, AugustâSeptember 2007, Pages 805-808
نویسندگان
J.T. Elizalde Galindo, H.A. Davies, J.A. Matutes-Aquino,