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Influence of the indenter tip geometry and environment on the indentation modulus of enamel

Published online by Cambridge University Press:  31 January 2011

G.M. Guidoni ,
L.H. He ,
T. Schöberl ,
I. Jäger ,
G. Dehm  and
M.V. Swain
G.M. Guidoni*
Affiliation:
Erich Schmid Institute of Material Science, Austrian Academy of Sciences, Leoben, A-8700, Austria; and Department of Material Physics, University of Leoben, Leoben, A-8700, Austria
L.H. He
Affiliation:
Biomaterials Science Research Unit, Faculty of Dentistry, University of Sydney, United Dental Hospital, Sydney, Surry Hills NSW 2010, Australia
T. Schöberl
Affiliation:
Erich Schmid Institute of Material Science, Austrian Academy of Sciences, Leoben, A-8700, Austria
I. Jäger
Affiliation:
Department of Material Physics, University of Leoben, Leoben, A-8700, Austria
G. Dehm
Affiliation:
Erich Schmid Institute of Material Science, Austrian Academy of Sciences, Leoben, A-8700, Austria; and Department of Material Physics, University of Leoben, Leoben, A-8700, Austria
M.V. Swain*
Affiliation:
Biomaterials Science Research Unit, Faculty of Dentistry, University of Sydney, United Dental Hospital, Sydney, Surry Hills NSW 2010, Australia; and Biomaterials Unit, Department of Oral Sciences, School of Dentistry, University of Otago, Dunedin, New Zealand
*
a) Address all correspondence to this author. e-mail: [email protected]
b) This author was an editor of this focus issue during the review and decision stage. For the JMR policy on review and publication of manuscripts authored by editors, please refer to http://www.mrs.org/jmr_policy
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Abstract

The aim of the investigation was to study the influence of indenter tip geometry on the conventionally obtained indentation modulus of enamel by nanoindentation. Indentation tests on bovine enamel using three different diamond pyramidal indenters with half face angles 65.27°, 45°, and 35.26° were conducted to evaluate the indentation modulus using the Oliver–Pharr method [W.C. Oliver and G.M. Pharr, J. Mater. Res.7, 1564 (1992)]. In addition, three different dehydration conditions were studied: wet under Hank's balanced salt solution, laboratory dried, and vacuum dehydrated. For the Berkovich indenter (65.27°) and 45° pyramidal indenters, there was only a small difference between indentation modulus values, whereas for the cube-corner indenter (35.26°) a ratio of 2.4 between laboratory dry and wet samples was found. A detailed evaluation, including indentation creep and recovery as well as pileup, resulted in a reduction of this latter ratio to 1.7. This still large difference was rationalized on the basis of the different deformation mechanisms generated by indenters of different face angles.

Keywords

BiologicalElastic propertiesNanoindentation
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 3 , March 2009 , pp. 616 - 625
Copyright
Copyright © Materials Research Society 2009

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References

REFERENCES

1.Currey, J.D.: Bones (Princeton University Press, Princeton, NJ, 2002), p. 436.CrossRefGoogle Scholar
2.White, S.N., Luo, W., Paine, M.L., Fong, H., Sarikaya, M., and Snead, M.L.: Biological organization of hydroxyapatite crystallites into a fibrous continuum toughens and controls anisotropy in human enamel. J. Dent. Res. 80, 321 (2001).CrossRefGoogle ScholarPubMed
3.Habelitz, S., Marshall, G.W. Jr, Balooch, M., and Marshall, S.J.: Nanoindentation and storage of teeth. J. Biomech. 35, 995 (2002).CrossRefGoogle ScholarPubMed
4.Staines, M., Robinson, W.H., and Hood, J.A.A.: Spherical indentation of tooth enamel. J. Mater. Sci. 16, 2551 (1981).CrossRefGoogle Scholar
5.Ge, J., Cui, F.Z., Wang, X.M., and Feng, H.L.: Property variations in the prism and the organic sheath within enamel by nanoindentation. Biomaterials 26, 3333 (2005).CrossRefGoogle ScholarPubMed
6.Xu, H.H.K., Smith, D.T., Jahanmir, S., Romberg, E., Kelly, J.R., Thompson, V.P., and Rekow, E.D.: Indentation damage and mechanical properties of human enamel and dentin. J. Dent. Res. 77, 472 (1998).CrossRefGoogle ScholarPubMed
7.Cuy, J.L., Manna, A.B., Livi, K.J., Teaford, M.F., and Weihs, T.P.: Nanoindentation mapping of the mechanical properties of human molar tooth enamel. Arch. Oral Biol. 47, 281 (2002).CrossRefGoogle ScholarPubMed
8.Braly, A., Darnell, L.A., Mann, A.B., Teaford, M.F., and Weihs, T.P.: The effect of prism orientation on the indentation testing of human molar enamel. Arch. Oral Biol. 52, 856 (2007).CrossRefGoogle ScholarPubMed
9.Bembey, A.K., Bushby, A.J., Boyde, A., Ferguson, V.L., and Oyen, M.L.: Hydration effects on the micro-mechanical properties of bone. J. Mater. Res. 21, 1962 (2006).CrossRefGoogle Scholar
10.Guidoni, G.: Nano-scale mechanical and tribological properties of mineralized tissues. Ph.D. Thesis, Montan University Leoben, Leoben, Austria, 2008.Google Scholar
11.Bushby, A.J., Ferguson, V.L., and Boyde, A.: Nanoindentation of bone: Comparison of specimens tested in liquid and embedded in polymethylmethacrylate. J. Mater. Res. 19, 249 (2004).CrossRefGoogle Scholar
12.Oliver, W.C. and Pharr, G.M.: An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. J. Mater. Res. 7, 1564 (1992).CrossRefGoogle Scholar
13.Hill, R., Lee, E.H., and Tupper, S.J.: The theory of wedge indentation of ductile materials. Proc. R. Soc. London, Ser. A 188, 273 (1947).Google Scholar
14.Hirst, W. and Howse, M.G.J.W.: The indentation of materials by wedges. Proc. R. Soc. London, Ser. A 311, 429 (1969).Google Scholar
15.Atkins, A.A. and Tabor, D.: Plastic indentation in metals with cones., J. Mech. Phys. Solids 13, 149 (1965).CrossRefGoogle Scholar
16.Johnson, K.L.: The correlation of indentation experiments. J. Mech. Phys. Solids 18, 115 (1970).CrossRefGoogle Scholar
17.Morris, D.J., Myers, S.B., and Cook, R.F.C.: Sharp probes of varying acuity: Instrumented indentation and fracture behavior. J. Mater. Res. 19, 165 (2004).CrossRefGoogle Scholar
18.Hay, J.C., Bolshakov, A., and Pahrr, G.M.: A critical examination of the fundamental relations used in the analysis of nanoindentation data., J. Mater. Res. 14, 2296 (1999).CrossRefGoogle Scholar
19.Marsh, D.M.: Plastic flow in glass. Proc. R. Soc. London 279, 420 (1964).Google Scholar
20.Sneddon, I.N.: The relation between load and penetration in the axisymetric Boussineq problem for a punch of arbitrary profile. Int. J. Eng. Sci. 3, 47 (1965).CrossRefGoogle Scholar
21.He, L.H., Fujisawa, N., and Swain, M.V.: Elastic modulus and stress—strain response of human enamel by nano-indentation. Biomaterials 27, 4388 (2006).CrossRefGoogle ScholarPubMed
22.Poolthong, S., Mori, T., and Swain, M.V.: Determination of the elastic modulus of dentin by small spherical diamond indenters. J. Dent. Mater. 20, 227 (2001).CrossRefGoogle ScholarPubMed
23.Poolthong, S.: Determination of the mechanical properties of enamel, dentine, and cementum by an ultra micro-indentation system. Ph.D. Thesis, University of Sydney, Sydney, Australia, 1998.Google Scholar
24.Guidoni, G., Denkmayer, J., Schöberl, T., and Jäger, I.: Nanoindentation in teeth: The influence of experimental conditions on local mechanical properties. Philos. Mag. 86, 5705 (2006).CrossRefGoogle Scholar
25.Angker, L. and Swain, M.V.: Nanoindentation: Application to dental hard tissue investigations. J. Mater. Res. 21, 1893 (2006).CrossRefGoogle Scholar
26.Fischer-Cripps, A.C.: Nanoindentation (Springer-Verlag, New York, 2004), p. 264.CrossRefGoogle Scholar
27.Field, J.S., Swain, M.V., and Dukino, R.D.: Determination of fracture toughness from the extra penetration produced by indentation-induced pop-in., J. Mater. Res. 18, 1412 (2003).CrossRefGoogle Scholar
28.Schneider, G.A., Scholz, T., Muñoz-Saldaña, J., and Swain, M.V.: Domain rearrangement during nanoindentation in single-crystalline barium titanate measured by atomic force microscopy and piezoresponse force microscopy. Appl. Phys. Lett. 86, 192903/1 (2005).CrossRefGoogle Scholar
29.Ntim, M.M., Bembey, A.K., Ferguson, V.L., and Bushby, A.J.: Hydration effects on the viscoelastic properties of collagen, in Mechanical Behavior of Biological and Biomimetic Materials, edited by Bushby, A.J., Ferguson, V.L., Ko, C-C., and Oyen, M.L. (Mater. Res. Soc. Symp. Proc. 898E, Warrendale, PA, 2006), 0898-L05–02.Google Scholar
30.Vincent, J.F.V.: Structural Biomaterials: (Revised Edition) (Princeton University Press, London, UK, 1990), p. 244.Google Scholar
31.Ngan, A.H.W., Wang, H.T., Tang, B., and Sze, K.Y.: Correcting power-law viscoelastic effects in elastic modulus measurement using depth-sensing indentation. Int. J. Solids Struct. 42, 1831 (2005).CrossRefGoogle Scholar
32.Zhou, J. and Hsiung, L.L.: Biomolecular origin of the rate-dependent deformation of prismatic enamel. Appl. Phys. Lett. 89, 051904 (2006).CrossRefGoogle Scholar
33.Rho, J-Y. and Pharr, G.M.: Effects of drying on the mechanical properties of bovine femur measured by nanoindentation. J. Mater. Sci. Mater. Med. 10, 485 (1999).CrossRefGoogle ScholarPubMed
34.Field, J.S. and Swain, M.: Determining the mechanical properties of small volumes of material from submicrometer spherical indentations. J. Mater. Res. 10, 101 (1995).CrossRefGoogle Scholar
35.He, L.H. and Swain, M.V.: Contact induced deformation of enamel. Appl. Phys. Lett. 90, 171916/1 (2007).CrossRefGoogle Scholar