Mechanical stability of Ti6Al4V implant material after femtosecond laser irradiation

The surface of a titanium alloy (Ti6Al4V) implant material was covered with a bioactive calcium alkali phosphate ceramic with the aim to accelerate the healing and to form a stronger bond to living bone tissue. To fix the ceramic powder we used a femtosecond laser, which causes a thin surface meltin...

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Veröffentlicht in:Journal of applied physics 2012-07, Vol.112 (2)
Hauptverfasser: Symietz, Christian, Lehmann, Erhard, Gildenhaar, Renate, Hackbarth, Andreas, Berger, Georg, Krüger, Jörg
Format: Artikel
Sprache:eng
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Zusammenfassung:The surface of a titanium alloy (Ti6Al4V) implant material was covered with a bioactive calcium alkali phosphate ceramic with the aim to accelerate the healing and to form a stronger bond to living bone tissue. To fix the ceramic powder we used a femtosecond laser, which causes a thin surface melting of the metal. It is a requirement to prove that the laser irradiation would not reduce the lifetime of implants. Here we present the results of mechanical stability tests, determined by the rotating bending fatigue strength of sample rods. After describing the sample surfaces and their modifications caused by the laser treatment we give evidence for an unchanged mechanical stability. This applies not only to the ceramic fixation but also to a comparatively strong laser ablation.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4737576