MEASUREMENT OF A RESIDUAL IMPRESSION BY THE LASER SCANNING MICROSCOPE WITH DIC UNIT

Masayuki Fujitsuka, Makoto Yamaguchi, Shigeru Ueno, Genichiro Kamiyama, Shigeo Katayama
Abstract:
When the nanoindentation testing is carried out, it is very important to understand the residual impression and the surface around it. Generally Atomic Force Microscopy (AFM) is used to obtain them. However, it is necessary to understand correct shape in the point of cantilever in AFM procedure. And, measuring them by AFM procedure precisely, very long measurement time and very clean environment and so on are needed. So, there are many difficulties to use AFM procedure for measuring residual impression and the surface around it. On the other hand, there are some procedures to measure them. Scanning Electro Microscopy (SEM) is effective to the grasp of the shape of the surface and the ruggedness. But, this procedure needs the coating of the sample and the vacuum atmosphere. Therefore it is not a simple and quick procedure. In this paper, authors used the laser scanning microscope with a differential interference contrast unit to obtain the data of a residual impression and the surface around it. This procedure is the very simple and quick procedure in no contact and measuring in various environmental conditions. The data of indentation depth from this procedure is obtained at the nano-meter order. The results from this procedure compare with the results from displacement of nanoindentation test.
Keywords:
Nanoindentation, residual impression, laser scanning microscopy
Download:
IMEKO-TC5-2007-024.pdf
DOI:
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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