کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803299 | 1516464 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical and electronic properties of nanocrystalline TiNi1 â xMx (M = Mg, Mn, Zr; x = 0, 0.125, 0.25) ternary alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Nanocrystalline TiNi1 â xMx (M = Mg, Mn, Zr; x = 0, 0.125, 0.25) ternary alloys were prepared by mechanical alloying (MA) followed by annealing. The effect of Mg, Mn and Zr on the structure and electrochemical properties of nanocrystalline TiNi-type alloys was studied. It was found that the respective replacement of Ni in TiNi by Mg, Mn or Zr improved not only the discharge capacity but also the cycle life of these electrodes. In the nanocrystalline TiNi0.875Mn0.125 powder the discharge capacity up to 151 mA h gâ1 on the 10th cycle was measured (at 40 mA gâ1 discharge current). The studies show, that the electrochemical properties of nanocrystalline MH electrodes are a function of the chemical composition of the used materials. The band structure has been studied by the Tight Binding version of the Linear Muffin-Tin orbitals method in the Atomic Sphere Approximation (TB LMTO ASA).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1â2, 10 November 2005, Pages 323-328
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1â2, 10 November 2005, Pages 323-328
نویسندگان
A. Szajek, M. Makowiecka, E. Jankowska, M. Jurczyk,