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[63420] Artykuł: Optical study of plasma sprayed hydroxyapatite coatings deposited at different spray distanceCzasopismo: Proceeding of SPIE Tom: 10445, Strony: 1-8ISSN: 0277-786X ISBN: 978-1-5106-1355-3 Wydawca: SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA Opublikowano: Sierpień 2017 Seria wydawnicza: Proceedings of SPIE Liczba arkuszy wydawniczych: 0.60 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper ![]() ![]() Keywords: hydroxyapatite  plasma spraying deposition  hydroxyl group concentration  Raman spectroscopy  diffuse reflectance spectroscopy  |
Series of hydroxyapatite (HA) coatings deposited on titanium substrate at different spray (plasma gun to workpiece) distance were investigated. The optical methods as dark field confocal microscopy, Raman/PL and UV-VIS spectroscopy were used for study the influence of deposition process on structural degradation of HA precursor. The hydroxyl group concentration was investigated by study the OH mode intensity in the Raman spectra. Optical absorption coefficients at near UV region were analyzed by Diffuse Reflectance Spectroscopy. PL intensity observed during Raman measurement was also considered as relation to defects concentration and degradation level. It was confirmed the different gun-substrate distance has a great impact on structure of deposited HA ceramics.