Nanoindentation behavior of ultrathin polymeric films

Kebin Geng; Fuqian Yang; Thad Druffel; Eric A. Grulke

doi:10.1016/j.polymer.2005.08.096

Nanoindentation behavior of ultrathin polymeric films

Kebin Geng, Fuqian Yang, Thad Druffel, Eric A. Grulke

Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

Measurement of the mechanical properties of nanoscale polymeric films is important for the fabrication and design of nanoscale layered materials. Nanoindentation was used to study the viscoelastic deformation of low modulus, ultrathin polymeric films with thicknesses of 47, 125 and 3000 nm on a high modulus substrate. The nominal reduced contact modulus increases with the indentation load and penetration depth due to the effect of substrate, which is quantitatively in agreement with an elastic contact model. The flow of the nanoscale films subjected to constant indentation loads is shear-thinning and can be described by a linear relation between the indentation depth and time with the stress exponent of 1/2.

Original language	English
Pages (from-to)	11768-11772
Number of pages	5
Journal	Polymer
Volume	46
Issue number	25
DOIs	https://doi.org/10.1016/j.polymer.2005.08.096
State	Published - Nov 28 2005

Bibliographical note

Funding Information:
FY is grateful for support from NSF grant DMR-0211706 and support from General Motors Corporation. KG and EG are grateful for support from Optical Dynamic Corporation.

Keywords

Nanoindentation
Polymeric films
Viscoelasticity

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics

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10.1016/j.polymer.2005.08.096

Cite this

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title = "Nanoindentation behavior of ultrathin polymeric films",

abstract = "Measurement of the mechanical properties of nanoscale polymeric films is important for the fabrication and design of nanoscale layered materials. Nanoindentation was used to study the viscoelastic deformation of low modulus, ultrathin polymeric films with thicknesses of 47, 125 and 3000 nm on a high modulus substrate. The nominal reduced contact modulus increases with the indentation load and penetration depth due to the effect of substrate, which is quantitatively in agreement with an elastic contact model. The flow of the nanoscale films subjected to constant indentation loads is shear-thinning and can be described by a linear relation between the indentation depth and time with the stress exponent of 1/2.",

keywords = "Nanoindentation, Polymeric films, Viscoelasticity",

author = "Kebin Geng and Fuqian Yang and Thad Druffel and Grulke, {Eric A.}",

note = "Funding Information: FY is grateful for support from NSF grant DMR-0211706 and support from General Motors Corporation. KG and EG are grateful for support from Optical Dynamic Corporation.",

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doi = "10.1016/j.polymer.2005.08.096",

language = "English",

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T1 - Nanoindentation behavior of ultrathin polymeric films

AU - Geng, Kebin

AU - Yang, Fuqian

AU - Druffel, Thad

AU - Grulke, Eric A.

N1 - Funding Information: FY is grateful for support from NSF grant DMR-0211706 and support from General Motors Corporation. KG and EG are grateful for support from Optical Dynamic Corporation.

PY - 2005/11/28

Y1 - 2005/11/28

N2 - Measurement of the mechanical properties of nanoscale polymeric films is important for the fabrication and design of nanoscale layered materials. Nanoindentation was used to study the viscoelastic deformation of low modulus, ultrathin polymeric films with thicknesses of 47, 125 and 3000 nm on a high modulus substrate. The nominal reduced contact modulus increases with the indentation load and penetration depth due to the effect of substrate, which is quantitatively in agreement with an elastic contact model. The flow of the nanoscale films subjected to constant indentation loads is shear-thinning and can be described by a linear relation between the indentation depth and time with the stress exponent of 1/2.

AB - Measurement of the mechanical properties of nanoscale polymeric films is important for the fabrication and design of nanoscale layered materials. Nanoindentation was used to study the viscoelastic deformation of low modulus, ultrathin polymeric films with thicknesses of 47, 125 and 3000 nm on a high modulus substrate. The nominal reduced contact modulus increases with the indentation load and penetration depth due to the effect of substrate, which is quantitatively in agreement with an elastic contact model. The flow of the nanoscale films subjected to constant indentation loads is shear-thinning and can be described by a linear relation between the indentation depth and time with the stress exponent of 1/2.

KW - Nanoindentation

KW - Polymeric films

KW - Viscoelasticity

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JO - Polymer

JF - Polymer

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ER -

Nanoindentation behavior of ultrathin polymeric films

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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