Abstract
The present study has been aimed to investigate the preparation and analysis of calcium phosphate (CaP) based hydroxyapatite (HA, Ca10(PO4)6(OH)2) coatings formed on Ti6Al4V alloys in a new buffer environment. The coating process has been performed by means of biomimetic method. In the study, a synthetic body fluid (SBF), which is fully compatible with human blood plasma, has been prepared for the first time in the literature by using the citric acid – sodium citrate buffer system. Using this buffer system will not cause any toxic reactions in the human body. CaP coating of the Ti6Al4V surface has been performed in this new SBF. The surface roughness and thickness specifications of the coatings have been determined, their microstructures have been analyzed by using a scanning electron microscope (SEM), the elemental analysis (EDX) of the coating surfaces and the XRD analysis have been done. The results are presented and discussed.
Kurzfassung
Die diesem Beitrag zugrundeliegende Studie zielte auf die Untersuchung der Herstellung und Analyse von Beschichtungen aus Calziumphosphat-basierten (CaP) Hydroxyapatit (HA: Ca10(PO4)6(OH)2) auf Ti6Al4V-Legierungen in einem neuen Puffersystem ab. Der Beschichtungsprozess wurde mittels eines biomimetischen Verfahrens ausgeführt. In der Studie wurde eine synthetische Körperflüssigkeit (synthetic body fluid, SBF), die mit menschlichem Blutplasma vollständig kompatibel ist, erstmals in der Literatur unter Verwendung des Citronensäure-/Natriumcitrat-Puffersystems hergestellt. Die Verwendung dieses Puffersystems verursacht keinerlei toxische Reaktionen im menschlichen Körper. Die CaP-Beschichtung der Ti6Al4V-Oberfläche wurde in diesem neuen SBF ausgeführt. Die Oberflächenrauheit und die Dicke der Beschichtungen wurden bestimmt, ihre Mikrostrukturen wurden mit dem Rasterelektronenmikroskop (REM) analysiert, die Elementanalyse der Beschichtungsoberflächen mit EDX und eine XRD-Analyse wurden ausgeführt. Die Ergebnisse werden präsentiert und diskutiert.
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