Abstract
A BIOLOX® delta femoral head has been evaluated with respect to its surface micromechanical behavior and its environmental aging response upon increasing elongation time in a hot water vapor environment. A microscopic evaluation of surface phenomena was obtained according to confocal Raman microprobe spectroscopy. The confocal configuration of the optical probe allowed spectroscopic assessments in the very neighborhood of the material surface. After extreme exposure time in moist environment, a portion of zirconia dispersoids transformed from the tetragonal to the monoclinic polymorph on the surface of the sample. A pyramidal diamond indentation technique was applied in order to analyze crack initiation. A significant influence of the transformation to the crack tip opening was observed. However, it should be noted that such an effect is likely to occur only after extremely long exposure in hot vapor environment.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
S. Deville, J. Chevalier, C. H. Dauvergne, G. Fantozzi, J. F. Bartolome, J. S. Moya, and R. Torrecillas, “Microstructural investigation of the aging behavior of (3Y-TZP)-Al2O3 composites,” J. Am. Ceram. Soc., 88, 1273–1280 (2005).
G. Gregori, W. Burger, and V. Sergo, “Piezo-spectroscopic analysis of the residual stresses in zirconia-toughened alumina ceramics: the influence of the tetragonal-to-monoclinic transformation,” Mater. Sci. Eng., 271, 401–406 (1999).
P. Merkert, “Next generation ceramic bearings”, In: 8th BIOLOX® Symposium, 123–125(2003).
T. D. Stewart, J. L. Tipper, G. Insley, R. M. Streicher, E. Ingham, and J. Fisher, “Long-term wear of ceramic matrix composite materials for hip prostheses under severe swing phase microseparation,” J. Biomed. Mater. Res. Part B, 66-B, 567–573 (2003).
J. L. Masonis, R. B. Bourne, M. D. Ries, R. W. McCalden, A. Salehi, and D. C. Kelman, “Zirconia femoral head fracture,” J. Arthroplasty, 19, 898–905 (2004).
G. Maccauro, C. Piconi, W. Burger, L. Pilloni, E. De Santis, and I. D. Learmonth, “Fracture of a Y-TZP ceramic femoral head,” J. Bone Joint Surg. Br., 86-B, 1192–1196 (2004).
J. E. Nevelos, E. Ingham, C. Doyle, A. B. Nevelos, and J. Fisher, “The influence of acetabular cup angle on the wear of “BIOLOX Forte” alumina ceramic bearing couples in a hip joint simulator,” J. Mater. Sci., 13, 141–144 (2001).
G. Pezzotti, and A. A. Porporati, “Raman spectroscopic analysis of phase transformation and stress patterns in zirconia hip joints,” J. Biomed. Optics, 9, 372–384 (2004).
G. Pezzotti, “Stress microscopy and confocal Raman imaging of load-bearing surface in artificial hip joints,” Expert Rev. Med. Devices, 4, 165–189 (2007).
G. Katagiri, H. Ishida, A. Ishitani and T. Masaki, “Direct Determination by a Raman Microprobe of the Transformation Zone Size in Y2O3 Containing Tetragonal ZrO2 Polycrystals,” Advances in Ceramics, Vol. 24: Science and Technology of Zirconia III, 537–544 (1988).
J. Seidel and J. Rödel, “Measurement of Crack Tip Toughness in Alumina as a function of Grain size,” J. Am. Ceram. Soc., 80, 433–438 (1997).
T. Fett, “Computation of the Crack Opening Displacements for Vickers Indentation Cracks,” Rept, No. FZKA 6757, Forschungszentrum Karlsruhe, Karlsruhe, Germany, (2002).
E. H. Yoffe, “Elastic Stress Fields Caused by Indenting Brittle Materials,” Philos. Mag. A., 46, 617–628 (1982).
V. Sergo and D. M. Clarke, “Deformation bands in Ceria-Stabilized Tetragonal Zirconia/ Alumina: II, Stress-Induced Aging at Room Temperature,” J. Am. Ceram. Soc., 78, 641–644 (1995).
G. Pezzotti, “Raman piezo-spectroscopic analysis of natural and synthetic biomaterials,” Anal. Bioanal. Chem., 381, 577–590 (2005).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Steinkopff Verlag
About this paper
Cite this paper
Pezzotti, G. (2007). Toughening vs. Environmental Aging in BIOLOX® delta: A micromechanics study. In: Chang, JD., Billau, K. (eds) Bioceramics and Alternative Bearings in Joint Arthroplasty. Ceramics in Orthopaedics. Steinkopff. https://doi.org/10.1007/978-3-7985-1783-7_21
Download citation
DOI: https://doi.org/10.1007/978-3-7985-1783-7_21
Publisher Name: Steinkopff
Print ISBN: 978-3-7985-1782-0
Online ISBN: 978-3-7985-1783-7
eBook Packages: MedicineMedicine (R0)