کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10620793 988702 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling of formation of binary-phase hollow nanospheres from metallic solid nanospheres
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Modeling of formation of binary-phase hollow nanospheres from metallic solid nanospheres
چکیده انگلیسی
Spontaneous formation of binary-phase hollow nanospheres by reaction of a metallic nanosphere with a non-metallic component in the surrounding atmosphere is observed for many systems. The kinetic model describing this phenomenon is derived by application of the thermodynamic extremal principle. The necessary condition of formation of the binary-phase hollow nanospheres is that the diffusion coefficient of the metallic component in the binary phase is higher than that of the non-metallic component (Kirkendall effect occurs in the correct direction). The model predictions of the time to formation of the binary-phase hollow nanospheres agree with the experimental observations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 57, Issue 6, April 2009, Pages 1912-1919
نویسندگان
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