Article: Nanoindentation using an atomic force microscope

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TitleNanoindentation using an atomic force microscope
AuthorsTang, B1
Ngan, AHW1
Keywordsatomic force microscope
deformation
elasticity
nanoindentation
viscoelasticity
Issue Date2011
PublisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/14786435.asp
CitationPhilosophical Magazine, 2011, v. 91 n. 7-9, p. 1329-1338 [How to Cite?]
DOI: http://dx.doi.org/10.1080/14786431003745351
AbstractThe elastic moduli of a range of polymers were characterized by nanoindentation on an atomic force microscope (AFM), using a recently proposed protocol involving a jump in the sample displacement rate. In this method any viscous behavior of the sample would not react to the rate jump, so that the response of the sample reflects only its elastic behavior. By assuming that the AFM tip is a flat-ended punch, this method involves calibration of only two cantilever tip-specific parameters. Experiments were conducted on PMMA at 353 K using load schedules comprising two such rate jumps in sequence and with different magnitudes. The results indicate that PMMA exhibits a constant elastic modulus at the test temperature, and that the AFM tip used is well described by the flat-ended punch approximation. © 2011 Taylor & Francis.
ISSN1478-6435
2011 Impact Factor: 1.51
2011 SCImago Journal Rankings: 0.093
DOIhttp://dx.doi.org/10.1080/14786431003745351
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorTang, B
dc.contributor.authorNgan, AHW
dc.date.accessioned2011-06-17T09:20:08Z
dc.date.available2011-06-17T09:20:08Z
dc.date.issued2011
dc.description.abstractThe elastic moduli of a range of polymers were characterized by nanoindentation on an atomic force microscope (AFM), using a recently proposed protocol involving a jump in the sample displacement rate. In this method any viscous behavior of the sample would not react to the rate jump, so that the response of the sample reflects only its elastic behavior. By assuming that the AFM tip is a flat-ended punch, this method involves calibration of only two cantilever tip-specific parameters. Experiments were conducted on PMMA at 353 K using load schedules comprising two such rate jumps in sequence and with different magnitudes. The results indicate that PMMA exhibits a constant elastic modulus at the test temperature, and that the AFM tip used is well described by the flat-ended punch approximation. © 2011 Taylor & Francis.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationPhilosophical Magazine, 2011, v. 91 n. 7-9, p. 1329-1338 [How to Cite?]
DOI: http://dx.doi.org/10.1080/14786431003745351
dc.identifier.citeulike9000194
dc.identifier.doihttp://dx.doi.org/10.1080/14786431003745351
dc.identifier.epage1338
dc.identifier.hkuros185589
dc.identifier.isiWOS:000288003700023
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administration Region, P.R. ChinaHKU7156/08E
University Grants Committee of the Hong Kong Special Administration Region, P.R. ChinaSEG-HKU06
Croucher Foundation
Funding Information:

The work described in this paper was supported by grants from the Research Grants Council (Project No. HKU7156/08E), as well as from the University Grants Committee (Project No. SEG-HKU06) of the Hong Kong Special Administration Region, P.R. China. AHWN would like to acknowledge support in the form of a Senior Research Fellowship from the Croucher Foundation. We acknowledge Mr. Zhi Wei Sun of Zhejiang University for carrying out part of the experiments reported in this paper. We also thank Dr. Warren Oliver for helpful discussion.

dc.identifier.issn1478-6435
2011 Impact Factor: 1.51
2011 SCImago Journal Rankings: 0.093
dc.identifier.issue7-9
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-79952666059
dc.identifier.spage1329
dc.identifier.urihttp://hdl.handle.net/10722/134411
dc.identifier.volume91
dc.languageeng
dc.publisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/14786435.asp
dc.publisher.placeUnited Kingdom
dc.relation.ispartofPhilosophical Magazine
dc.relation.referencesReferences in Scopus
dc.subjectatomic force microscope
dc.subjectdeformation
dc.subjectelasticity
dc.subjectnanoindentation
dc.subjectviscoelasticity
dc.titleNanoindentation using an atomic force microscope
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong