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

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

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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 ( Ic = 1.1×10 -6 , Ec = -0.48) than the microcrystalline titanium ( Ic = 2.7×10 -5 , Ec = -0.47). Titanium-hydroxyapatite bulk structures are promising biomaterials for the use as replace­ment implants.

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Editor-in-Chief: Kukovecz Ákos (SZTE)

Editor-in-Chief: Kónya Zoltán (SZTE)

 

2019  
WoS
Cites
6
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1

 

Nanopages
Publication Model Gold Open Access
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Nanopages
Language English
Size B5
Year of
Foundation
2006
Volumes
per Year
1
Issues
per Year
1
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Chief Executive Officer, Akadémiai Kiadó
ISSN 1787-4033 (Print)
ISSN 1788-0718 (Online)

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