Nanowear of atomic force microscope tips: Modeling and experiments

Nicola M. Pugno*, Ravi Agrawal, Horacio D. Espinosa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


In this paper, a simple analytical model to predict the nanowear of atomic force microscope tips is presented and experimentally validated. The model is based on the assumption that the energy consumed to remove the unit volume is a material/structural (i.e. size-dependent) parameter. Nanoscratch tests show that this hypothesis is plausible and, more importantly, that the specific energy is close to the material strength at the considered size scale, i.e. the theoretical material strength at the nanoscale. With our approach, predictions on nanowear, e.g. for an optimal nanomachine design, can be made a priori.

Original languageEnglish (US)
Pages (from-to)73-77
Number of pages5
JournalReviews on Advanced Materials Science
Issue number1-2
StatePublished - Feb 2009
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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