Abstract
Fracture toughness of Al2O3 platelet-reinforced hydroxyapatite (HAP) ceramics was investigated using the Vickers' indentation technique. The geometrical anisotropy of alumina platelets induces an anisotropic toughening. The efficiency of reinforcing mechanisms remains maximum for a crack propagating with an angular deviation inferior to 30° around the direction perpendicular to alumina disc faces. This is assumed to result from a crack deflection mechanism which induces a favorable contribution of mode II failure. A small effect of hydroxyapatite grain size becomes noticeable in the direction parallel to alumina disc faces. The toughening depends on the size and volume content of alumina platelets. Large size platelets provoke a spontaneous microcracking of the HAP matrix which is detrimental to the mechanical reliability, whereas small platelets lead to a strong toughening. The results relate to the intensity of thermoelastic residual stresses within the matrix around alumina inclusions. © 1999 Kluwer Academic Publishers
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References
D. I. Bardos, in “Concise encyclopedia of medical & dental materials”, edited by D. Williams (Pergamon Press, Oxford, 1990) p. 360.
J. P. Meyrueis, in “Les biomateÂriaux en chirurgie orthopeÂdique”, edited by J. Duparc (Cahiers d'enseignement de la SOFCOT, Paris, 1986) p. 25.
L. L. Hench, J. Amer. Ceram. Soc. 74 (1991) 1487.
G. Heimke, Adv. Ceram. Mater. 2 (1987) 764.
K. D. Groot, in “Bioceramics of calcium phosphate”, edited by K. D. Groot (CRC Press, Boca Raton, FL, 1983) p. 99.
M. Jarcho, Clin. Orthop. Rel. Res. 157 (1981) 259.
R. W. Bucholz, A. Carlton and R. E. Holmes, Orthop. Clin. N. Amer. 18 (1987) 323.
M. B. Thomas and R. H. Doremus, Ceram. Bull. 60 (1981) 258.
G. D. With, H. J. A. V. Dijk, N. Hattu and K. Prijs, J. Mater. Sci. 16 (1981) 1592.
M. Akao, N. Miura and H. Aoki, Yogyo Kyokai Shi 92 (1984) 78.
J. Li and L. Hermansson, Interceram 39 (1990) 13.
R. Halouani, D. Bernache-assollant, E. Champion and A. Ababou, J. Mater. Sci.: Mater. Med. 5 (1994) 563.
P. V. Landuyt, F. Li, J. P. Keustermans, J. M. Streydio, F. Delannay and E. Munting, J. Mater. Sci.: Mater. Med. 6 (1995) 8.
R. W. Rice, Ceram. Engng. Sci. Proc. 2 (1981) 661.
K. Xia and T. G. Langdon, J. Mater. Sci. 29 (1994) 5219.
S. T. Buljan, A. E. Pasto and H. J. Kim, Ceram. Bull. 68 (1989) 387.
K. Ioku, M. Yoshimura and S. Somiya, Biomaterials 11 (1990) 57.
M. Takagi, M. Mochida, N. Uchida, K. Saito and K. Uematsu, J. Mater. Sci.: Mater. Med. 3 (1992) 199.
V. S. Nagarajan and K. J. Rao, J. Mater. Chem. 3 (1993) 43.
T. Noma, N. Shoji, S. Wada and T. Suzuki, J. Ceram. Soc. Jpn 100 (1992) 1175.
T. Noma, N. Shoji, S. Wada and T. Suzuki, N. Shoji, S. Wada and T. Suzuki J. Ceram. Soc. Jpn 101 (1993) 923.
H. Ji and P. M. Marquis, J. Mater. Sci. 28 (1993) 1941.
A. J. Ruys, A. Brandwood, B. K. Milthorpe, M. R. Dickson, K. A. Zeigler and C. C. Sorrell, J. Mater. Sci.: Mater. Med. 6 (1995) 297.
W. Suchanek, M. Yashima, M. Kakihana and M. Yoshimura, J. Amer. Ceram. Soc. 80 (1997) 2805.
S. Gautier, E. Champion and D. Bernacheassollant, J. Eur. Ceram. Soc. 17 (1997) 1361.
K. T. Faber and A. G. Evans, Acta Metall. 31 (1983) 565.
A. G. Evans and K. T. Faber, J. Amer. Ceram. Soc. 64 (1984) 394.
P. F. Becher, C. H. Hsueh, P. Angelini and T. N. Tiegs, J. Amer. Ceram. Soc. 71 (1988) 1050.
G. Pezzotti, Acta Metall. Mater. 41 (1993) 1825.
P. F. Becher, J. Amer. Ceram. Soc. 74 (1991) 255.
G. Pezzotti, Y. Okamoto, T. Ni Shida and M. Sakai, Acta Mater. 44 (1996) 899.
A. G. Evans and E. A. Charles, J. Amer. Ceram. Soc. 59 (1976) 371.
S. W. Freiman, Ceram. Bull. 67 (1988) 392.
E. Champion, S. Gautier and D. Bernacheassollant, J. Mater. Sci.: Mater. Med. 7 (1996) 125.
Z. Li and R. C. Bradt, J. Amer. Ceram. Soc. 72 (1989) 70.
E. Esperance, Thesis, Ecole Nationale Supèrieure des Mines, Saint-Etienne, France, 1992.
F. Osterstock, G. Vadam and J. L. Chermant, MeÂmoires Scientifiques de la Revue MeÂtallurgie (1980) 7.
R. W. Rice, S. W. Freiman and P. F. Becher, J. Amer. Ceram. Soc. 64 (1981) 345.
R. W. Rice and S. W. Freiman, J. Amer. Ceram. Soc. 64 (1981) 350.
Y. Fu and A. G. Evans, Acta Metall. 30 (1982) 1619.
G. R. Fischer, P. Bardhan and J. E. Geiger, J. Mater. Sci. Lett. 2 (1983) 577.
S. T. Buljan, J. G. Baldoni, M. L. Huckabee and G. Zilberstein, in “Conference Proceedings of ASMI”, edited by R. A. Bradley, D. E. Clark, D. C. Larsen and J. O. Stiegler (ASMI, 1988) p. 113.
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Gautier, S., Champion, E. & Bernache-Assollant, D. Toughening characterization in alumina platelet–hydroxyapatite matrix composites. Journal of Materials Science: Materials in Medicine 10, 533–540 (1999). https://doi.org/10.1023/A:1008964230258
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DOI: https://doi.org/10.1023/A:1008964230258