کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1613190 | 1516313 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bulk metastable cobalt in fcc crystal structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Bulk metastable pure cobalt was fabricated by a simple sintering route with micrometer-sized Co particles as raw materials. The as-prepared bulk Co is composed of dominant metastable face-centered cubic (fcc) phase and a trace of hexagonal close-packed (hcp) phase at room temperature. The crystal structures and magnetic properties of the metastable bulk are very sensitive to external stresses. Obvious fcc-to-hcp phase transformation occurred under tensile loading, which was accompanied by significant increase of the coercivity and remanence. It is believed that the interface energy plays a key role in hindering the fcc-to-hcp allotropic transition, leading to the existence of metastable bulk Co with the high-temperature fcc structure at room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 580, 15 December 2013, Pages 187-190
Journal: Journal of Alloys and Compounds - Volume 580, 15 December 2013, Pages 187-190
نویسندگان
Qingkun Meng, Shun Guo, Xinqing Zhao, S. Veintemillas-Verdaguer,