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Kim, Ju-Young
Robust Multifunctional Materials Lab
Research Interests
  • Flexible / stretchable devices, nano-mechanics, nanoporous metal, materials reliability

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Influence of tip bluntness on the size-dependent nanoindentation hardness

Cited 36 times inthomson ciCited 39 times inthomson ci
Title
Influence of tip bluntness on the size-dependent nanoindentation hardness
Author
Kim, Ju-YoungLee, BWRead, DTKwon, D
Keywords
Dislocation theory; Hardness; Nanoindentation; Tip bluntness
Issue Date
200503
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SCRIPTA MATERIALIA, v.52, no.5, pp.353 - 358
Abstract
Nanoindenter tip bluntness modifies the size-dependent hardness relationship given by the Nix-Gao model. At shallow depths, fewer geometrically necessary dislocations are needed to accommodate the blunted tip. The experimentally measured ratio of plastic to total contact depth decreases and the hardness decreases relative to the idealized Nix-Gao model.
URI
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DOI
http://dx.doi.org/10.1016/j.scriptamat.2004.10.036
ISSN
1359-6462
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