Processing and Characterization of Porous Ti-HA Biocomposites


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Öksüz K. E. , Kumruoğlu L. C. , Dinçer C.

International Porous and Powder Materials Symposium and Exhibition, PPM 2015, İzmir, Türkiye, 15 - 18 Eylül 2015, cilt.1, ss.602-605

  • Cilt numarası: 1
  • Basıldığı Şehir: İzmir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.602-605

Özet

Titanium has been widely used for biomedical applications under load-bearing

conditions, due to its biocompatibility and low density coupled with good balance of mechanical

properties and corrosion resistance. However, the elastic modulus of Ti and Ti alloys can be

reduced through the introduction of a porous structure, which may also provide new bone tissue

integration and vascularization abilities. In the present work, Ti-HA foam has been produced

employing powder metallurgy route. Nano hydroxyapatite (HA) powder was produced

from natural bovine bone by a ball-milling method. Ti-HA powders pressed at 600 MPa and

sintered at 1200 °C for 2 hours in argon atmosphere. Porosities of the specimens linearly increase

for the Ti-HA specimens, with the different amount of hydroxyapatite addition. Structural and

morphological investigations of the prepared composites were performed using X-ray

Diffractometer (XRD), scanning electron and optical microscopy (SEM-OP) and Clemex Vision

image analyzer.