کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1678999 1009988 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An improved in situ measurement of offset phase shift towards quantitative damping-measurement with AFM
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
An improved in situ measurement of offset phase shift towards quantitative damping-measurement with AFM
چکیده انگلیسی

An improved approach is introduced in damping measurement with atomic force microscope (AFM) for the in situ measurement of the offset phase shift needed for determining the intrinsic mechanical damping in nanoscale materials. The offset phase shift is defined and measured at a point of zero contact force according to the deflection part of the AFM force plot. It is shown that such defined offset phase shift is independent of the type of sample material, varied from hard to relatively soft materials in this study. This improved approach allows the self-calibrated and quantitative damping measurement with AFM. The ability of dynamic mechanical analysis for the measurement of damping in isolated one-dimensional nanostructures, e.g. individual multiwalled carbon nanotubes, was demonstrated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultramicroscopy - Volume 108, Issue 9, August 2008, Pages 821–825
نویسندگان
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