The Manufacturing of Titanium-Hydroxyapatite Nanocomposites for Bone Implant Applications

Katarzyna Niespodziana; Karolina Jurczyk; Mieczyslaw Jurczyk

doi:10.1556/NANO.1.2006.2.7

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Nanopages

Volume/Issue:: Volume 1: Issue 2

The Manufacturing of Titanium-Hydroxyapatite Nanocomposites for Bone Implant Applications

Authors:

Katarzyna Niespodziana

Katarzyna Niespodziana Poznan University of Technology, Institute of Materials Science and Engineering Sklodowska-Curie 5 Sq., 60-965 Poznan, Poland

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Karolina Jurczyk

Karolina Jurczyk Poznan University of Medical Sciences, Faculty of Medicine II Bukowska 70 St., 60-812 Poznan, Poland

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, and

Mieczyslaw Jurczyk

Mieczyslaw Jurczyk Poznan University of Technology, Institute of Materials Science and Engineering Sklodowska-Curie 5 Sq., 60-965 Poznan, Poland

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Pages:: 219–229

Online Publication Date:: 26 Feb 2007

Publication Date:: 01 Jun 2006

Article Category:: Research Article

DOI:: https://doi.org/10.1556/NANO.1.2006.2.7

Keywords:: mechanical alloying; titanium-hydroxyapatite; nanocomposites

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Hydroxyapatite (HA, Ca ₁₀ (PO ₄ ) ₆ (OH) ₂ ) shows excellent biocompatibility, so it can be the most suitable ceramic material for hard tissue replacement implants. On the other hand, due to its low mechanical properties, HA cannot be used for heavy applications. The combination of good biocompatibility of hydroxyapatite and excellent mechanical properties of titanium is a good candidate way to expand the biomedical applications. The aim of this study was to develop new titanium-hydroxyapatite nanocomposites for biomedical applications. Bulk nanocomposites with different HA contents were successfully prepared by the combination of mechanical alloying (MA) and powder metallurgical process. The structure, mechanical and corrosion properties of these materials were investigated. The results show an enhancement of properties due to the nanoscale structures in bulk consolidated materials. For example, Vickers' hardness of Ti-10 vol% HA composite is higher than of pure microcrystalline Ti metal (250 HV) and reaches 1300 HV. On the other hand, the Ti-10 vol% HA composite is more corrosion resistant ( I_c = 1.1×10 ^-6 , E_c = -0.48) than the microcrystalline titanium ( I_c = 2.7×10 ^-5 , E_c = -0.47). Titanium-hydroxyapatite bulk structures are promising biomaterials for the use as replacement implants.

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Nanopages An Interdisciplinary Journal of Nano Science and Technology

Print ISSN:: 1787-4033

Online ISSN:: 1788-0718

Nanopages
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Nanopages
Language	English
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Year of Foundation	2006
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ISSN	1787-4033 (Print)
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