کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1579935 1001234 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of the molecular structure on indentation size effect in polymers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Influence of the molecular structure on indentation size effect in polymers
چکیده انگلیسی

Size dependent deformation of polymers has been observed by various researchers in various experimental settings including micro beam bending, foams and indentation testing. Here in this article the indentation size effect in polymers is examined which manifests itself in increased hardness at decreasing indentation depths. Based on previously suggested rationale of size dependent deformation and depth dependent hardness model the depth dependent hardness of various polymers are analyzed. It is found that polymers containing aromatic rings in their molecular structure exhibit depth dependent hardness above the micron length scale. For polymers not containing aromatic rings polymers the indentation size effect starts at smaller indentation depths if they are present at all.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issue 3, 15 January 2010, Pages 619–624
نویسندگان
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