Tip radius variation with elastic indentation depth
Abstract
The reduced elastic modulus of a material is measured with a nanoindenter probe that is operated in the tapping mode. The resonant frequency of a freely oscillating cantilever is reduced when contact is made between the indenter tip and surface under investigation. It’s shown using elasticity theory that the elastic deformation is a function of the indenter tip radius. A deeper penetration within the elastic range can change the tip radius, and introduce an error of 10% in calculating the reduced elastic modulus.
- Authors:
-
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Intel Corporation, Portland, OR (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1477973
- Alternate Identifier(s):
- OSTI ID: 1582951
- Report Number(s):
- SAND-2018-10179J
Journal ID: ISSN 0167-577X; 667940
- Grant/Contract Number:
- AC04-94AL85000; NA0003525
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Materials Letters
- Additional Journal Information:
- Journal Volume: 227; Journal ID: ISSN 0167-577X
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Jankowski, Alan F., Ahmed, H. S. Tanvir, and Brannigan, Eric M. Tip radius variation with elastic indentation depth. United States: N. p., 2018.
Web. doi:10.1016/j.matlet.2018.05.045.
Jankowski, Alan F., Ahmed, H. S. Tanvir, & Brannigan, Eric M. Tip radius variation with elastic indentation depth. United States. https://doi.org/10.1016/j.matlet.2018.05.045
Jankowski, Alan F., Ahmed, H. S. Tanvir, and Brannigan, Eric M. Wed .
"Tip radius variation with elastic indentation depth". United States. https://doi.org/10.1016/j.matlet.2018.05.045. https://www.osti.gov/servlets/purl/1477973.
@article{osti_1477973,
title = {Tip radius variation with elastic indentation depth},
author = {Jankowski, Alan F. and Ahmed, H. S. Tanvir and Brannigan, Eric M.},
abstractNote = {The reduced elastic modulus of a material is measured with a nanoindenter probe that is operated in the tapping mode. The resonant frequency of a freely oscillating cantilever is reduced when contact is made between the indenter tip and surface under investigation. It’s shown using elasticity theory that the elastic deformation is a function of the indenter tip radius. A deeper penetration within the elastic range can change the tip radius, and introduce an error of 10% in calculating the reduced elastic modulus.},
doi = {10.1016/j.matlet.2018.05.045},
journal = {Materials Letters},
number = ,
volume = 227,
place = {United States},
year = {2018},
month = {5}
}
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Cited by: 1 work
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