کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1636488 1516952 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sliding wear behavior of copper-based composites reinforced with graphene nanosheets and graphite
ترجمه فارسی عنوان
رفتار سایش کششی کامپوزیت های مبتنی بر مس تقویت شده با نانوذرات گرافن و گرافیت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
The mechanical and tribological properties of hot-pressed copper-based composites containing different amounts of graphene nanosheets (GNSs) are compared with those of copper-graphite (Gr) composites fabricated by the same method. The results show that the Cu-GNSs composites exhibit higher relative density, microhardness and bending strength compared with Cu-Gr composites with the same volume fraction of GNSs and Gr. Moreover, the friction coefficients and wear rates reduce significantly by the addition of GNSs, whereas the limited impact on reducing friction and wear is found on graphite. The abrasive and delamination wear are the dominant wear mechanisms of the composites. It is believed that the superior mechanical and tribological performances of Cu-GNSs composites are attributed to the unique strengthening effect as well as the higher lubricating efficiency of graphene nanosheets compared with those of graphite, which demonstrates that GNS is an ideal filler for copper matrix composites, acting as not only an impactful lubricant but also a favorable reinforcement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 25, Issue 10, October 2015, Pages 3354-3362
نویسندگان
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