کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1620462 | 1005735 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Powder neutron diffraction studies for the L21 phase of Co2YGa (YÂ =Â Ti, V, Cr, Mn and Fe) Heusler alloys
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Powder neutron diffraction studies for the L21 phase of Co2YGa (YÂ =Â Ti, V, Cr, Mn and Fe) Heusler alloys Powder neutron diffraction studies for the L21 phase of Co2YGa (YÂ =Â Ti, V, Cr, Mn and Fe) Heusler alloys](/preview/png/1620462.png)
چکیده انگلیسی
Site occupancies of Co, Y (Y = Ti, V, Cr, Mn and Fe) and Ga atoms for the L21 phase in Co2YGa alloys annealed at 773 K were precisely investigated by powder neutron diffraction measurement. While Co atoms in all the five alloys almost perfectly occupy the x (2a) site, the occupancy of the z (4b) site by Ga atoms depends on the kind of Y atom, and it decreases with increasing number of valence electrons except for Co2CrGa alloy. Degrees of long-range order on the z site occupancy of Ga atoms experimentally determined for all the alloys are in good agreement with those thermodynamically estimated from their order-disorder transition temperatures using the Bragg-Williams-Gorsky approximation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 499, Issue 1, 4 June 2010, Pages 1-6
Journal: Journal of Alloys and Compounds - Volume 499, Issue 1, 4 June 2010, Pages 1-6
نویسندگان
R.Y. Umetsu, K. Kobayashi, R. Kainuma, Y. Yamaguchi, K. Ohoyama, A. Sakuma, K. Ishida,