International Journal of Fracture

, Volume 130, Issue 3, pp L183–L190 | Cite as

Microstructure and elastic properties of sintered hydroxyapatite

  • Oleg Prokopiev
  • Igor Sevostianov
  • Joseph Genin
  • Stewart Munson McGee
  • Clint Woodward


The paper focuses on the dependence of microstructure and elastic properties of sintered hydroxyapatite on the processing parameters. Several specimens were sintered in conventional furnace at various temperatures. Elastic moduli were measured ultrasonically and information about the microstructure was recovered from these data and then verified by analysis of microphotographs. It was obtained that the average shape of pores becomes more “round” as the sintering temperature increases. That leads, in particular, to higher fracture toughness of the material since the stress concentration near pores is reduced.


hydroxyapatite sintering elastic properties microstructure 


  1. Gilmore, R. and Katz, L. (1982). Elastic properties of apatites. Journal of Material Science, 17, 1131–1141.Google Scholar
  2. Kato K., Aoki H., Tabota I., Ogiso M. (1979) Biocompatibility of apatite ceramics in mandibles.// Biomater. Med. Devices Artif. Organs, 7, 291–304.Google Scholar
  3. LeGeros R.Z. and LeGeros J.P. (1993) Dense Hydroxyapatite. In: An Introduction to Bioceramics, Ed. by Hench L.L. and Wilson J. World Scientific, Singapore, 139–180.Google Scholar
  4. Martin R.I., Brown P.W. (1995) Mechanical properties of hydroxyapatyte formed at physiological temperature. J. Mater. Sci.: Mater. in Medicine, 6, 138–143.Google Scholar
  5. Olevsky, E. A. (1997). Theory of sintering: from discrete to continuum. Materials Science and engineering, R23, 41–100.Google Scholar
  6. Parthasarathi, S., Tittmann, B. R., Sampath, K. and Onesto, E.J. (1995). Ultrasonic Characterization of Elastic Anisotropy in Plasma-Sprayed Alumina Coatings. Journal of Thermal Spray Technology, 4(4), 367–373.Google Scholar
  7. Sevostianov, I. (1998) Micromechanical design of ceramic matrix biocomposites: effective field approach, Composite Structures, 43, 109–114.Google Scholar
  8. Sevostianov, I., Gorbatkin, L. and Kachanov M. (2002). Recovery information on the micro structure of porous/microcracked materials from the effective elastic/conductive properties. Material Science and Engineering, A318, 1–14.Google Scholar
  9. Stea S., Visentin M., Savarino L., Donati M.E., Pizzoferruto A., Moroni A., Caia V. (1995) Quantitative analysis of the bone hydrixyapatite coating interface, J. Mater. Sci.: Mater. in Medicine, 6, 455–459.Google Scholar
  10. Shors, C. E., & Holmes, E. R. (1993). Porous hydroxyapatite. In L. L. Hench & J. Wilson (Eds.), An introduction to bioceramics (p. 181–198). Singapore: World scientific Publishing Co. Pte. Ltd.Google Scholar
  11. Tsui, Y.C., Doyle, C. and Clyne T.W. (1998). Plasma sprayed hydroxyapatite coatings on titanium substrates Part 1: mechanical properties and residual stress levels. Biomaterials, 19, 2015–2029.Google Scholar
  12. Yang, Y. C., Chang, E., Hwang, B. H. and Lee, S. Y. (2000). Biaxial residual stress states of plasma-sprayed hydroxyapatite coatings on titanium alloy substrate. Biomaterials, 21, 1327–1337.Google Scholar
  13. Yi Fang, Dines K. Agraval, Delia M. Roy, and Rustum Roy (1993) Microwave, sintering of hydroxyapatite ceramics.Google Scholar
  14. Zheng, X., Huang M., and Digng, C. (2001). Bond strength of plasma-sprayed hydroxyapatite/Ti composite coating. Biomaterials, 21, 841.Google Scholar

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Oleg Prokopiev
    • 1
  • Igor Sevostianov
    • 1
  • Joseph Genin
    • 1
  • Stewart Munson McGee
    • 2
  • Clint Woodward
    • 3
  1. 1.Department of Mechanical EngineeringNew Mexico State UniversityLas CrucesUSA
  2. 2.Department of Chemical EngineeringNew Mexico State UniversityLas CrucesUSA
  3. 3.Department of Civil EngineeringNew Mexico State UniversityLas CrucesUSA

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