Consodilation and Investigation of Properties of Hydroxyapatite-316L Stainless Steel Composites


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Karabacak A. H. , Özkaya S. , Çanakçı A. , Varol T. , Çelebi M. , Erdemir F.

1. INTERNATIONAL TECHNOLOGICAL SCIENCES AND DESIGN SYMPOSIUM, Giresun, Türkiye, 27 - 29 Haziran 2018, ss.828-834

  • Basıldığı Şehir: Giresun
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.828-834

Özet

The aim of this study is production and investigation of properties of Hydroxyapatite (HA) matrix, 316L stainless steel

powder reinforced biocomposites by powder metallurgy processes. The 316L powder ratio was changed from 0 to 2

wt%, to investigate the effect of 316L on the properties of HA/316L biocomposites. The composite powders were

mixed in a planetary ball mill for 5 minutes to obtain homogenous distribution of 316L particles. Than the mixed

powders were cold pressed under 600 MPa pressure, after that the green samples were sintered at 1200 0C for 2,5 hours

under pure argon gas atmosphere. The density and porosity measurements were done by Archimed’s method. The

distribution of 316L particles and microstructural investigations were done using scanning electron microscopy.

Moreover, the fracture toughness were investigated by using Vickers indentitation and Niihara fracture toughness

formula. The investigations showed that, the density of samples are decreasing with increasing 316L powder amount.

Moreover the fracture toughness were increased with increasing 316L content.

Keywords: Biomaterials, Biocomposite, Hydroxyapatite, 316L Stainless Steel, Powder metallurgy