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Nanoscale metallic and composite biomaterials

M. JURCZYK1,* , K. NIESPODZIANA1, M. TULINSKI1, K. JURCZYK2

Affiliation

  1. Institute of Materials Science and Engineering, Poznan University of Technology, M. Skłodowska-Curie 5 Sq., 60-965 Poznan, Poland
  2. K. Marcinkowski University of Medical Sciences, Department of Conservative Dentistry and Periodontology, Bukowska 70, 60-812 Poznan, Poland

Abstract

The paper reviews research at Poznan University of Technology, on the synthesis of nanoscale metallic and composite biomaterials. These materials were prepared by the combination of mechanical alloying and powder metallurgical process. Examples of the materials include nanocrystalline nickel-free stainless steels and titanium-ceramic nanocomposites, both for biomedical applications. The results show an enhancement of properties due to the nanoscale structures in bulk consolidated materials. The mechanical and corrosion properties of produced biomaterials are presented. For example, microhardness test showed that nanocrystalline austenitic nickel-free nitrogen containing stainless steel and Ti-10vol% hydroxyapatite samples exhibits Vickers microhardness as high as 378 HV0.2 and 1500 HV0.2, respectively. The hardness is almost two and five times greater than in austenitic steel obtained by conventional method or microcrystalline titanium, respectively. From the point of view of mechanical and corrosion properties, Ti-10 vol% HA or SiO2 nanocomposite are promising biomaterials for use as hard tissue replacement implants..

Keywords

Bionanomaterials, Mechanical alloying, Ni-free stainless steel, Ti-HA (SiO2) nanocomposites.

Submitted at: Feb. 25, 2008
Accepted at: April 4, 2008

Citation

M. JURCZYK, K. NIESPODZIANA, M. TULINSKI, K. JURCZYK, Nanoscale metallic and composite biomaterials, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 4, pp. 732-736 (2008)