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Determining the Area Function of Spherical Indenters for Nanoindentation.

  • Andrew J. Bushby (a1) and Nigel M. Jennett (a2)


Nanoindentation with spherical tipped indenters provides a powerful technique for exploring surface mechanical properties through the application of Hertzian mechanics. The full range of mechanical response can be obtained from elastic, through the yield point to a range of permanent deformation. However, the successful application of the technique requires accurate calibration of the indenter tip geometry. In this paper methods based on indentation into a number of reference materials are used to characterise a range of spherical tipped indenters with nominal radii from 5 to 50 microns. A traceably calibrated metrological AFM is also used to determine the actual shape of one of the indenters. The sensitivity of each method to test parameters is discussed. Coincidence of the data from both methods validates the determined shape of the indenter and offers the opportunity to cross-correlate the calibration of both instruments with high sensitivity.



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1. Lawn, B.R., J. Am. Ceram. Soc., 81, 19771994, (1998)
2. Bushby, A.J., “Nano-Indentation Using Spherical Indenters”, accepted for publication in Nondest. Test. and Eval., 2000.
3. Bushby, A.J., “Physical Origin of a Size Effect in Nanoindentation” this volume.
4. Field, J.S. and Swain, M.V., J. Mater. Res., 8, 297306. (1993)
5. Oliver, W.C. and Pharr, G.M., J. Mater. Res., 7, 15641583, (1992)
6. Herrmann, K. and Jennett, N.M.Progress in determination of area function of indenters used for nanoindentation” Proc ICMCTF2000, San Diego (to be published in Thin Solid Films)
7. Johnson, K.L., “Contact Mechanics”, Cambridge University Press, (1985)
8. Jennett, N M; Shafirstein, G; Saunders, S R J. in Hardness Testing in Theory and Practice Proc. 9th Int. Symp. Hardness Testing in Theory and Practice, Düsseldorf, Nov 1995 VDI Berichte, 1194 pp201-210 Publ. VDI-Verlag GmbH, Dusseldorf, (1995)
9. Jennett, Nigel M and Meneve, Jan; Mat Res Soc. Symp Proc. 522, 239244, (1998)

Determining the Area Function of Spherical Indenters for Nanoindentation.

  • Andrew J. Bushby (a1) and Nigel M. Jennett (a2)


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