The effect of roughness on nanoindentation results

P. Nagy, I. Istvan Kükemezey, S. Kassavetis, P. Berke, M. P. Delplancke-Ogletree, S. Logothetidis

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Instrumented Indentation Technique (IIT) or nanoindentation is widely used to measure mechanical properties on nano to macro scales. Due to the simple testing procedure and the continuously increasing sensor sensitivity there exists practically no limitation on application scale and specimen size. One of the most important sources of error in IIT test is the inevitable roughness of the tested surface. The nanoindentation test is more sensitive for the roughness of the sample as the conventional hardness test because of its shallower penetration in the sample, especially in the case of thin films' characterization, when the indentation depth is limited by the film thickness. The question, what an effect the roughness on the value of hardness has, was not studied in detail yet. In this study we applied specially roughened samples in tests, carried out with different indenter tips and by various instruments to determine experimentally the effect of roughness. Other parameters (as indenter rounding and shape, penetration depth, wavelength of the roughness) do have some effect on test results. The initial theoretical findings were confirmed by a considerable accuracy in the experiments.

Original languageEnglish
Pages (from-to)480-483
Number of pages4
JournalNanoscience and Nanotechnology Letters
Volume5
Issue number4
DOIs
Publication statusPublished - Apr 2013

Fingerprint

Nanoindentation
Surface roughness
Indentation
Hardness
Macros
Film thickness
Thin films
Wavelength
Mechanical properties
Sensors
Testing
Experiments

Keywords

  • Elastic-modulus
  • Hardness
  • Nanoindentation
  • Roughness

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Nagy, P., Kükemezey, I. I., Kassavetis, S., Berke, P., Delplancke-Ogletree, M. P., & Logothetidis, S. (2013). The effect of roughness on nanoindentation results. Nanoscience and Nanotechnology Letters, 5(4), 480-483. https://doi.org/10.1166/nnl.2013.1566

The effect of roughness on nanoindentation results. / Nagy, P.; Kükemezey, I. Istvan; Kassavetis, S.; Berke, P.; Delplancke-Ogletree, M. P.; Logothetidis, S.

In: Nanoscience and Nanotechnology Letters, Vol. 5, No. 4, 04.2013, p. 480-483.

Research output: Contribution to journalArticle

Nagy, P, Kükemezey, II, Kassavetis, S, Berke, P, Delplancke-Ogletree, MP & Logothetidis, S 2013, 'The effect of roughness on nanoindentation results', Nanoscience and Nanotechnology Letters, vol. 5, no. 4, pp. 480-483. https://doi.org/10.1166/nnl.2013.1566
Nagy P, Kükemezey II, Kassavetis S, Berke P, Delplancke-Ogletree MP, Logothetidis S. The effect of roughness on nanoindentation results. Nanoscience and Nanotechnology Letters. 2013 Apr;5(4):480-483. https://doi.org/10.1166/nnl.2013.1566
Nagy, P. ; Kükemezey, I. Istvan ; Kassavetis, S. ; Berke, P. ; Delplancke-Ogletree, M. P. ; Logothetidis, S. / The effect of roughness on nanoindentation results. In: Nanoscience and Nanotechnology Letters. 2013 ; Vol. 5, No. 4. pp. 480-483.
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