Mechanical response of semi-brittle nano particles under an imposed cyclic field

Y. Katz, W. Mook, R. Mukherjee, A. Gidwani, J. Deneen, William W Gerberich

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In elastic plastic solids, approaching the sub micron scale, critical experiments indicated significant differences in the mechanical response. Thus, mainly in small volume behavior a length scale issue is introduced with implications on the basic understanding of deformation and fracture processes. The current study is centered on the mechanical response of silicon particles in the range of 20-50 nm on sapphire substrate. Monotonic and cyclic mechanical tests have been performed by contact mechanics methodology at ambient temperature. Mechanical information and visualization assisted by scanning probe microscope-based nano indentation alluded to a model founded on dislocation dynamic effects. This facilitated developments regarding the length scale subject in the light of fatigue concepts and structural integrity aspects.

Original languageEnglish (US)
Title of host publicationMaterials Structure and Micromechanics of Fracture IV, MSMF-4 - Proceedings of the Fourth International Conference on Materials Structure and Micromechanics of Fracture
PublisherTrans Tech Publications Ltd
Pages51-54
Number of pages4
ISBN (Print)0878499644, 9780878499649
DOIs
StatePublished - Jan 1 2005
Event4th International Conference on Materials Structure and Micromechanics of Fracture, MSMF-4 - Brno, Czech Republic
Duration: Jun 23 2004Jun 25 2004

Publication series

NameMaterials Science Forum
Volume482
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other4th International Conference on Materials Structure and Micromechanics of Fracture, MSMF-4
CountryCzech Republic
CityBrno
Period6/23/046/25/04

Keywords

  • Contact mechanics
  • Cyclic response
  • Micro plasticity
  • Nanoscale
  • Silicon

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  • Cite this

    Katz, Y., Mook, W., Mukherjee, R., Gidwani, A., Deneen, J., & Gerberich, W. W. (2005). Mechanical response of semi-brittle nano particles under an imposed cyclic field. In Materials Structure and Micromechanics of Fracture IV, MSMF-4 - Proceedings of the Fourth International Conference on Materials Structure and Micromechanics of Fracture (pp. 51-54). (Materials Science Forum; Vol. 482). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-964-4.51