کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7002336 1454787 2018 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Friction characteristics of polymers applicable to small-scale devices
ترجمه فارسی عنوان
خصوصیات اصطکاک پلیمرها قابل استفاده برای دستگاه های کوچک
کلمات کلیدی
پلیمر بازگشت اصطکاک در مقیاس کوچک، دستگاه های کوچک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی
A review of the critical features of a published micro-tribometer design, which was intended to improve on the dynamic response of typical commercial instruments, leads to its use with a modified technique. Data post-processing is introduced to partially compensate for some potential systematic errors. This approach is demonstrated by a preliminary study of the coefficient of friction (CoF) in sub-mm length reciprocating sliding motion for samples of polytetrafluoroethylene (PTFE) and an R11 acrylic formulation made by micro-stereo-lithography, with an SiO2-coated silicon wafer used as a control sample. Testing covered normal loads in the region of 10 mN-60 mN, at scan frequencies up to 9 Hz, corresponding to sliding speeds in the broad region of 1 mm s−1. While the control samples closely adhered to Amonton's laws over all the test parameter ranges, the CoFs of the two polymers showed contrasting patterns of dependence on sliding speed and repetition rate. Such results have implications for how polymers might be used effectively in future designs for small mechanical systems. They indicate a clear need for further development of the testing methods and large-scale studies of tribological behaviour and its underlying mechanisms under the specified micro-scale conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 119, March 2018, Pages 698-706
نویسندگان
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