کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1446692 988623 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Direct observation of sintering mechanics of a single grain boundary
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Direct observation of sintering mechanics of a single grain boundary
چکیده انگلیسی

A method to analyze the mechanics of sintering of a single grain boundary was developed by using specimens fabricated by focused ion beam micro-machining. The translational motion and rotation of particles in sintering are influenced by the grain boundary diffusion coefficient and grain boundary energy; both are dependent on crystallographic orientation. Three-dimensional computer simulation was used to analyze the shrinkage and rotation as a response to sintering force and torque, respectively. The model experiments on gold were compared with the simulation results to determine the depth of the cusps on the plot of grain boundary energy vs. misorientation angle, the grain boundary diffusion coefficients, and the surface diffusion coefficient.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 60, Issue 2, January 2012, Pages 507–516
نویسندگان
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