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Multiple-frequency dynamic nanoindentation testing

Published online by Cambridge University Press:  01 October 2004

A.C. Fischer-Cripps
A.C. Fischer-Cripps*
Affiliation:
CSIRO, Division of Telecommunications and Industrial Physics, Lindfield NSW 2070, Australia
*
a) Address all correspondence to this author.e-mail: tony.cripps@csiro.au
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Abstract

A new method of dynamic nanoindentation testing is introduced in this paper. Conventional dynamic nanoindentation testing involves the superposition of a single frequency sinusoidal force or displacement onto the quasi-static load–displacement curve. However, the viscoelastic response of many materials depends upon the frequency of the deformation of the material. This paper describes a method whereby the storage and loss modulus of viscoelastic solids can be determined using a multi-frequency dynamic oscillatory motion mode of deformation. In this method, the applied load is modulated by a pseudo-random force signal comprising multiple frequencies. A Fourier analysis is then used to deconvolute the signal into frequency-dependent values of storage and loss modulus for the specimen material as a function of frequency. The instrument response is cancelled by the use of a reference transfer function using an equalization process. Established modeling equations can then be used to extract the modulus of elasticity and the viscosity of the specimen material.

Keywords

NanoindentationHardnessMechanical properties

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Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 10 , October 2004, pp. 2981 - 2988
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1Lucas, B.N., Oliver, W.C., and Swindeman, J.E.: The dynamics of frequency specific, depth-sensing indentation testing, in Fundamentals of Nanoindentation and Nanotribology, edited by Moody, N.R., Gerberich, W.W., Burnham, N., and Baker, S.P. (Mater. Res. Soc. Symp. Proc. 522, Warrendale, PA, 1998), p. 3.Google Scholar
2Loubet, J-L., Lucas, B.N., and Oliver, W.C.: In NIST Special Publication 896, Conference Proceedings: International Workshop on Instrumented Indentation, edited by Smith, D.T. (NIST, Gaithersburg, MD, 1995), p. 31.Google Scholar
3Burnham, N.A., Baker, S.P., and Pollock, H.M.: A model for mechanical properties of nanoprobes. J. Mater. Res. 15, 2006 (2000)Google Scholar
4Field, J.S., Swain, M.V. and Phan-Thien, N.: An experimental investigation of the use of random squeezing to determine the complex modulus of visco-elastic fluids. J. Non-Newtonian Fluid Mech. 65, 177 (1996).Google Scholar
5Steffe, J.F.: Rheological Methods in Food Process Engineering, 2nd ed. (Freeman Press, East Lansing, MI, 1996).Google Scholar
6Denn, M.M.: Process Fluid Mechanics (Prentice-Hall Inc. Englewood Cliffs, NJ, 1980).Google Scholar