کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10621124 | 988775 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamics of the self-assembly of nanovoids and nanobubbles in solids
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dynamics of the self-assembly of nanovoids and nanobubbles in solids Dynamics of the self-assembly of nanovoids and nanobubbles in solids](/preview/png/10621124.png)
چکیده انگلیسی
Experiments show that vacancies in solids may coalesce into voids and self-organize into a superlattice. The voids have diameters around 10Â nm and spacing of tens of nanometers. This paper develops a phase-field model to study this behavior, which incorporates the free energy of mixing, interfacial energy and elastic energy. Vacancy diffusion is described by a Cahn-Hilliard type nonlinear diffusion equation, which couples the vacancy distribution field and the stress field. The reduction of the mixing energy drives spinodal decomposition. The reduction of the interfacial energy drives void coarsening. The long-range elastic interaction and elastic anisotropy significantly affect superlattice formation and may essentially limit void coarsening.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 53, Issue 6, April 2005, Pages 1799-1807
Journal: Acta Materialia - Volume 53, Issue 6, April 2005, Pages 1799-1807
نویسندگان
Hui-Chia Yu, Wei Lu,