Journal of Materials Science

, Volume 43, Issue 8, pp 2536–2540

Composites of bovine hydroxyapatite (BHA) and ZnO

  • Oguzhan Gunduz
  • Eray M. Erkan
  • Sibel Daglilar
  • Serdar Salman
  • Simeon Agathopoulos
  • Faik Nuzhet Oktar
Article

Abstract

Composites of calcinated bovine bone-derived hydroxyapatite (BHA), doped with 2.5, 5, and 10 wt.% ZnO were produced by sintering. Scanning electron microscopy (SEM) and X-ray diffraction analysis together with measurements of density, compressive strength, and Vickers microhardness were carried out in the sintered samples. The experimental results showed that the best mechanical properties were achieved in the samples with 5% addition of ZnO. The highest value of compression strength was achieved after sintering at 1200 °C (72 MPa) and of microhardness at 1300 °C (548 HV). Prolong heat treatment at 1300 °C results in vulnerable BHA–ZnO composites to over-firing effect.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Oguzhan Gunduz
    • 1
    • 2
  • Eray M. Erkan
    • 3
  • Sibel Daglilar
    • 3
  • Serdar Salman
    • 1
    • 4
  • Simeon Agathopoulos
    • 5
  • Faik Nuzhet Oktar
    • 6
    • 7
  1. 1.Metal Education Department, Technical Education SchoolMarmara UniversityIstanbulTurkey
  2. 2.Mechanical EngineeringLondon University CollegeLondonUK
  3. 3.Metallurgical and Materials Engineering Department, Chemistry and Metallurgical SchoolYildiz Technical UniversityIstanbulTurkey
  4. 4.Georgia Institute of TechnologyEngineering College, Material Science and Engineering SchoolAtlantaUSA
  5. 5.Materials Science and Engineering DepartmentIoannina UniversityIoanninaGreece
  6. 6.Industrial Engineering Department, Engineering SchoolMarmara UniversityIstanbulTurkey
  7. 7.Radiology Department, Health Related Professions SchoolMarmara UniversityIstanbulTurkey

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