کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803543 | 1516469 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Formation and chemical leaching of non-equilibrium Al0.6(Co75Cu25)0.4 alloy powders by rod milling
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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: Formation and chemical leaching of non-equilibrium Al0.6(Co75Cu25)0.4 alloy powders by rod milling Formation and chemical leaching of non-equilibrium Al0.6(Co75Cu25)0.4 alloy powders by rod milling](/preview/png/9803543.png)
چکیده انگلیسی
We report upon the formation of nanoscale crystalline Al0.6(Co75Cu25)0.4 alloy powders and leached non-equilibrium specimens, produced by employing a combination of rod milling and chemical leaching. X-ray diffractometry (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and vibrating sample magnetometry (VSM) were used to characterize the as-milled and leached specimens. After 400 h of milling, bcc type peaks of the intermetallic compound AlCo were present in the XRD pattern. Leaching of the Al from the as-milled powders did not induce any significant change in the diffraction pattern. After annealing the leached specimen at 600 °C for 1 h, the nanoscale crystalline phase was transformed into the Co and fcc Cu phases, and this was accompanied by a change in the magnetic properties. Magnetization decreased gently upon heating from room temperature to 155.4 °C, then increased suddenly with rising temperatures up to 350.0 °C, as the Co and Cu atoms were rearranged, and finally decreased gently as heating continued to 850 °C. On cooling the specimen from 850 °C, the magnetization increased gently. The Curie temperature was about 570.7 °C for the as-milled powders.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 398, Issues 1â2, 2 August 2005, Pages 74-79
Journal: Journal of Alloys and Compounds - Volume 398, Issues 1â2, 2 August 2005, Pages 74-79
نویسندگان
Hyun-Goo Kim, Wha-Nam Myung, K. Sumiyama, K. Suzuki,