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Open AccessArticle

Laser-Based Ablation of Titanium–Graphite Composite for Dental Application

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Institute of Production Technologies, Faculty of Materials Science and Technology, Slovak University of Technology, J. Bottu 25, 917 24 Trnava, Slovakia
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Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovakia
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Institute of Material Science, Faculty of Materials Science and Technology, Slovak University of Technology, J. Bottu 25, 917 24 Trnava, Slovakia
*
Author to whom correspondence should be addressed.
Materials 2020, 13(10), 2312; https://doi.org/10.3390/ma13102312
Received: 20 April 2020 / Revised: 10 May 2020 / Accepted: 15 May 2020 / Published: 18 May 2020
(This article belongs to the Special Issue Advanced Progress in the Morphology and Surface of Dental Implant)
Biocompatible materials with excellent mechanical properties as well as sophisticated surface morphology and chemistry are required to satisfy the requirements of modern dental implantology. In the study described in this article, an industrial-grade fibre nanosecond laser working at 1064 nm wavelength was used to micromachine a new type of a biocompatible material, Ti-graphite composite prepared by vacuum low-temperature extrusion of hydrogenated-dehydrogenated (HDH) titanium powder mixed with graphite flakes. The effect of the total laser energy delivered to the material per area on the machined surface morphology, roughness, surface element composition and phases transformations was investigated and evaluated by means of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), confocal laser-scanning microscopy (CLSM) and X-ray diffraction analysis (XRD). The findings illustrate that the amount of thermal energy put to the working material has a remarkable effect on the machined surface properties, which is discussed from the aspect of the contact properties of dental implants. View Full-Text
Keywords: laser; machining; titanium; composite; powder metallurgy; surface; morphology; implant laser; machining; titanium; composite; powder metallurgy; surface; morphology; implant
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MDPI and ACS Style

Šugár, P.; Ludrovcová, B.; Kováčik, J.; Sahul, M.; Šugárová, J. Laser-Based Ablation of Titanium–Graphite Composite for Dental Application. Materials 2020, 13, 2312.

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