کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1612660 | 1516307 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of anisotropic MnBi nanoparticles by mechanochemical process
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fabrication of anisotropic MnBi nanoparticles by mechanochemical process Fabrication of anisotropic MnBi nanoparticles by mechanochemical process](/preview/png/1612660.png)
چکیده انگلیسی
MnBi nanoparticles with size in the range 100-300Â nm were fabricated from a mixture of Bi2O3 and Mn in the presence of Ca as reducing element by a mechanochemical process. Heat treatment of as-milled powder and subsequent washing yielded nanoparticles with composite morphology of MnBi/Bi. Nanoparticles were crystallographically anisotropic and displayed high remanence ratio (Mr/Ms) of 0.94 and high coercivity (Hc) of 16.3Â kOe at room temperature. The spin reorientation temperature of the MnBi nanoparticles was found to be at 119Â K showing an increase by 10Â K as compared to the bulk sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 586, 15 February 2014, Pages 349-352
Journal: Journal of Alloys and Compounds - Volume 586, 15 February 2014, Pages 349-352
نویسندگان
N.V. Rama Rao, A.M. Gabay, X. Hu, G.C. Hadjipanayis,