کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7903461 1510460 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystallization kinetics of Al86Ni8Gd6 amorphous alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Crystallization kinetics of Al86Ni8Gd6 amorphous alloy
چکیده انگلیسی
We study structure and crystallization kinetics of melt-spun Al86Ni8Gd6 amorphous alloy. The X-ray diffraction and transmission electron microscopy detect pronounced nanoscale clusters in the structure of the amorphous state. Differential scanning calorimetry analysis shows complex three-stage crystallization of the amorphous alloy at different heating rates. The high temperature X-ray diffraction analysis reveals crystallization mechanism with competing reactions of intermetallic compounds formation. Summarizing the experimental data, we introduce multiversion non-linear kinetic model that describes the crystallization process completely and allows us to determine kinetic parameters with high accuracy. The activation energies obtained reveal relatively stable amorphous state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 378, 15 October 2013, Pages 135-138
نویسندگان
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