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Crystals 2015, 5(4), 447-457; doi:10.3390/cryst5040447

Laser Annealing for Gas-Dynamical Spraying of HA Coating upon a Titanium Surface

1
Laboratory of Innovative Additive Technologies, Moscow State University of Technology “STANKIN”, 127055 Moscow, Russia
2
Lebedev Physical Institute of Russian Academy of Sciences, Samara Branch, Novo-Sadovaja st. 221, 443011 Samara, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Helmut Cölfen
Received: 29 July 2015 / Revised: 18 September 2015 / Accepted: 28 September 2015 / Published: 8 October 2015
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Abstract

Laser post-heating computer controlled detonation spraying (CCDS) and cold spray (CS) hybrid processes were proposed for fabrication of near sub micron structure coatings of hydroxyapatite (HA) + Ti system. Optical and SEM with energy dispersive X-ray analysis and comparative XRD phase analysis were used to evaluate microstructure. After those hybrid processes, no substantial variation in HA composition was noted by structural and phase examination. Nano-sized HA powders can be recommended for laser annealing CS (LaCS) process. Regimes of laser treatment optimal for increasing the adhesion between the HA and titanium coatings, providing more strength, ductility and decreasing of HA destruction in the coatings were determined. View Full-Text
Keywords: computer controlled detonation spraying (CCDS); cold spray (CS); laser annealing CCDS and CS; hydroxyapatite (HA) computer controlled detonation spraying (CCDS); cold spray (CS); laser annealing CCDS and CS; hydroxyapatite (HA)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Saphronov, V.; Shishkovsky, I. Laser Annealing for Gas-Dynamical Spraying of HA Coating upon a Titanium Surface. Crystals 2015, 5, 447-457.

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