INVESTIGATION OF NANO-INDENTATION ON FREE-STANDING FILMS FOR THE DETERMINATION OF TENSILE TEST PARAMETERS |
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| Zhi Li, Sai Gao, Konrad Herrmann |
- Abstract:
- With the aim to extract the mechanical properties of small volumes of materials, nowadays several methods have been proposed and are applied in practice. How to compare the results of these methods, therefore, gains more and more interests. Instrumented indentation with a spherical indenter on circularly supported freestanding thin films is believed to be an effective way to connect and compare the material testing methods including nanoindentation and micro-tensile testing. In this paper an experimental setup for making indents on free-standing films is presented, in which a modified bright-field microscope with optical sectioning capability is applied to determine the zero-point of nanoindentation, and to in-situ and real-timely measure the deflection of the film. Preliminary experimental results are reported, which coincide with the theoretical model.
- Keywords:
- Nanoindentation instrument, free-standing film, spherical indentation, optical microscopy, optical sectioning, topography measurement.
- Download:
- IMEKO-TC5-2007-002.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC5
- Event name:
- Symposium on Recent Advancements in the Theory and Practice of Hardness Measurement
- Title:
- 10th HARDMEKO Conference: HARDMEKO 2007
- Place:
- Tsukuba, JAPAN
- Time:
- 19 November 2007 - 21 November 2007