کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1502081 993405 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of temperature on single asperity contact and separation in Au
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Effect of temperature on single asperity contact and separation in Au
چکیده انگلیسی

We performed a series of molecular dynamics simulations of contact and separation of two Au surfaces at different temperatures. The pull-off force decreases monotonically with increasing temperature except for an abrupt rise that occurs between T1 ⩽ T ⩽ T2. This abrupt rise can be traced to a series of phase transformations in the sample during separation (face-centered cubic (fcc) → hexagonal close-packed → fcc) at elevated temperatures. The new fcc structure has a lower Schmid factor than the original fcc structure and consequently exhibits higher tensile strength.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 57, Issue 9, November 2007, Pages 885–888
نویسندگان
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