کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1831451 1526497 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Features of local atomic structure of nanocrystalline disordered Fe–M (M=Ge, Sn, Al, Si) alloys: EXAFS-study
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Features of local atomic structure of nanocrystalline disordered Fe–M (M=Ge, Sn, Al, Si) alloys: EXAFS-study
چکیده انگلیسی

The EXAFS-study (Fe, Sn and Ge K-edges) of disordered by mechanical activation binary supersaturated nanocrystalline solid solutions Fe–Al, Fe–Ge, Fe–Sn and Fe–Si is presented. The EXAFS-spectra are processed by solving the inverse binary problem, using the EXAFS-spectrum of the Fe K-edge only or combining the EXAFS-spectra on two K-edges, Fe and Ge or Fe and Sn. The parameters of partial correlation functions indicate chemical short-range ordering, high local static distortions in the lattice, increasing with metalloid content. The macrostructure of other type is forming through an initial, “local” stage within the bcc lattice.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 575, Issues 1–2, 21 May 2007, Pages 189–192
نویسندگان
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