X-ray diffraction analysis of hydroxyapatite-coated in different plasma gas atmosphere on Ti and Ti-6Al-4V
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Date
2017
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Medknow Publications subscription@eurjdent.com B9, Kanara Business Centre, off Link Road, Ghatkopar (E) Mumbai 400 075
Abstract
Objective: The aim is to study the effect of plasma working gas on composition, crystallinity, and microstructure of hydroxyapatite (HA) coated on Ti and Ti-6Al-4V metal substrates. Materials and Methods: Ti and Ti-6Al-4V metal substrates were coated with HA by plasma spray using four plasma gas atmospheres of argon, argon/hydrogen, nitrogen, and nitrogen/hydrogen. The degree of crystallinity, the phases present, and microstructure of HA coating were characterized using X-ray diffraction and scanning electron microscopy. Results: Variation in crystallinity and the microstructure of HA coating on plasma gas atmosphere was observed. Micro-cracks due to thermal stresses and shift in the 2? angle of HA compared to feedstock was seen. Conclusion: Plasma gas atmosphere has a significant influence on composition, crystallinity, and micro-cracks of HA-coated dental implants. © 2017 European Journal of Dentistry.
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Keywords
Hydroxyapatite, Plasma coating, Ti-6Al-4V, Titanium, X-ray diffraction
Citation
European Journal of Dentistry, 2017, 11, 4, pp. 438-446