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Determination of the effective zero point of contact for spherical nanoindentation

Published online by Cambridge University Press:  31 January 2011

Alexander J. Moseson*
Affiliation:
Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104
Sandip Basu
Affiliation:
Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104
Michel W. Barsoum
Affiliation:
Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104
*
a)Address all correspondence to this author. e-mail: [email protected]
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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 ≈2 nm. Errors of even a few nanometers can drastically alter plots and calculations that use the data, including curves of stress versus strain.

Type
Articles
Copyright
Copyright © Materials Research Society 2008

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References

REFERENCES

1Field, J.S.Swain, M.V.: Determining the mechanical-properties of small volumes of material from submicrometer spherical indentations. J. Mater. Res. 10, 101 1995CrossRefGoogle Scholar
2Field, J.S.Swain, M.V.: The indentation characterisation of the mechanical properties of various carbon materials: Glassy carbon, coke and pyrolytic graphite. Carbon 34, 1357 1996CrossRefGoogle Scholar
3Oliver, W.C.Pharr, G.M.: Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology. J. Mater. Res. 19, 3 2004CrossRefGoogle Scholar
4Bucaille, J.L., Felder, E.Hochstetter, G.: Identification of the viscoplastic behavior of a polycarbonate based on experiments and numerical modeling of the nano-indentation test. J. Mater. Sci. 37, 3999 2002CrossRefGoogle Scholar
5Grau, P., Berg, G., Fraenzel, W.Meinhard, H.: Recording hardness testing problems of measurement at small indentation depths. Phys. Status Solidi A 146, 537 1994CrossRefGoogle Scholar
6Huber, N.Tyulyukovskiy, E.: A new loading history for identification of viscoplastic properties by spherical indentation. J. Mater. Res. 19, 101 2004CrossRefGoogle Scholar
7Li, Z., Herrmann, K.Pohlenz, F.: A comparative approach for calibration of the depth measuring system in a nanoindentation instrument. Measurement 39, 547 2006CrossRefGoogle Scholar
8Rother, B., Steiner, A., Dietrich, D.A., Jehn, H.A., Haupt, J.Gissler, W.: Depth-sensing indentation measurements with Vickers and Berkovich indenters. J. Mater. Res. 13, 2071 1998CrossRefGoogle Scholar
9Tyulyukovskiy, E.Huber, N.: Neural networks for tip correction of spherical indentation curves from bulk metals and thin metal films. J. Mech. Phys. Solids 55, 391 2007CrossRefGoogle Scholar
10Chudoba, T., Griepentrog, M., Dück, A., Schneider, D.Richter, F.: Young’s modulus measurements on ultra-thin coatings. J. Mater. Res. 19, 301 2004CrossRefGoogle Scholar
11Chudoba, T., Schwarzer, N.Richter, F.: Determination of elastic properties of thin films by indentation measurements with a spherical indenter. Surf. Coat. Technol. 127, 9 2000CrossRefGoogle Scholar
12Fischer-Cripps, A.C.: Critical review of analysis and interpretation of nanoindentation test data. Surf. Coat. Technol. 200, 4153 2006CrossRefGoogle Scholar
13Liang, Y-H., Arai, Y., Ozasa, K., Ohashi, M.Tsuchida, E.: Simultaneous measurement of nanoprobe indentation force and photoluminescence of InGaAs/GaAs quantum dots and its simulation. Physica E 36, 1 2007CrossRefGoogle Scholar
14Lim, Y.Y.Chaudhri, M. Munawar: Indentation of elastic solids with a rigid Vickers pyramidal indenter. Mech. Mater. 38, 1213 2006CrossRefGoogle Scholar
15Linss, V., Schwarzer, N., Chudoba, T., Karniychuk, M.Richter, F.: Mechanical properties of a graded B–C–N sputtered coating with varying Young’s modulus: Deposition, theoretical modelling and nanoindentation. Surf. Coat. Technol. 195, 287 2005CrossRefGoogle Scholar
16Richter, F., Herrmann, M., Molnar, F., Chudoba, T., Schwarzer, N., Keunecke, M., Bewilogua, K., Zhang, X.W., Boyen, H.G.Ziemann, P.: Substrate influence in Young’s modulus determination of thin films by indentation methods: Cubic boron nitride as an example. Surf. Coat. Technol. 201, 3577 2006CrossRefGoogle Scholar
17Ullner, C.: Requirement of a robust method for the precise determination of the contact point in the depth sensing hardness test. Measurement 27, 43 2000CrossRefGoogle Scholar
18Basu, S., Moseson, A.Barsoum, M.W.: On the determination of spherical nanoindentation stress–strain curves. J. Mater. Res. 21, 2628 2006CrossRefGoogle Scholar
19Basu, S.Barsoum, M.W.: Deformation micromechanisms of ZnO single crystals as determined from spherical nanoindentation stress–strain curves. J. Mater. Res. 22, 2470 2007CrossRefGoogle Scholar
20Basu, S., Barsoum, M.W., Williams, A.D.Moustakas, T.D.: Spherical nanoindentation and deformation mechanisms in free-standing GaN films. J. Appl. Phys. 101, 083522 2007CrossRefGoogle Scholar
21Johnson, K.L.: Contact Mechanics Cambridge Cambridge University Press 1985CrossRefGoogle Scholar
22Field, J.S.Swain, M.V.: A simple predictive model for spherical indentation. J. Mater. Res. 8, 297 1993CrossRefGoogle Scholar
23Tabor, D.: Hardness of Metals Clarendon Oxford, UK 1951Google Scholar
24Sneddon, I.N.: The relaxation between load and penetration in the axisymmetric Boussinesq problem for a punch of arbitrary profile. Int. J. Eng. Sci. 3, 47 1965CrossRefGoogle Scholar
25Moseson, A.J.: Spherical nanoindentation: Insights and improvements, including stress–strain curves and effective zero point determination. Master Thesis, Drexel University,2007Google Scholar