کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7002212 1454787 2018 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A phenomenological elevated temperature friction model for viscoelastic polymer coatings based on nanoindentation
ترجمه فارسی عنوان
یک مدل اصطکاک حرارتی پدیده ای بالا برای پوشش های پلیمری با پوشش نازک بر اساس نانو انداختن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی
We propose a phenomenological elevated temperature (up to 260 °C) friction model for viscoelastic polymer coatings based on high temperature nanoindentation. Two advanced polymeric coatings were selected for this study, namely Aromatic Thermosetting Polyester (ATSP) and Polyetheretherketone (PEEK). High temperature up to 260 °C nanoindentation experiments were conducted at the same temperatures as macro-scale ball-on-disk tribological experiments at different temperatures. Hardness was directly measured from the indentation experiments and viscosity/relaxation and elastic modulus were obtained by curve fitting of the nanoindentation's unloading curve using a quadratic Maxwell model. The two coatings showed decreasing hardness, elastic modulus and viscosity/relaxation trends, with increasing temperature. The ATSP coating exhibited higher indentation recovery rate and higher hardness, and thus better wear resistance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 119, March 2018, Pages 299-307
نویسندگان
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