Journal article
Determination of the effective zero point of contact for spherical nanoindentation
Journal of materials research, v 23(1), pp 204-209
01 Jan 2008
Abstract
Accurate determination of the "zero point," the first contact between an indenter tip and sample surface, has to date remained elusive. In this article, we outline a relatively simple, objective procedure by which an effective zero point can be determined accurately and reproducibly using a nanoindenter equipped with a continuous stiffness measurement option and a spherical tip. The method relies on applying a data shift, which ensures that curves of stiffness versus contact radius are linear and go through the origin. The method was applied to fused silica, sapphire single crystals, and polycrystalline iron with various indenter sizes to a zero-point resolution of approximate to 2 nm. Errors of even a few nanometers can drastically alter plots and calculations that use the data, including curves of stress versus strain.
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Details
- Title
- Determination of the effective zero point of contact for spherical nanoindentation
- Creators
- Alexander J. Moseson - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USASandip Basu - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USAMichel W. Barsoum - Drexel University, Materials Science and Engineering
- Publication Details
- Journal of materials research, v 23(1), pp 204-209
- Publisher
- Springer Nature
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Mechanical Engineering and Mechanics; College of Engineering
- Web of Science ID
- WOS:000252291200028
- Scopus ID
- 2-s2.0-38649141809
- Other Identifier
- 991014632228104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary