Effect of Solution and Calcination Time on Sol-gel Synthesis of Hydroxyapatite  

作　　者：Serbiilent Turk Ibrahim Altinsoy Gozde Celebi Efe Mediha Ipek Mahmut Ozacar Cuma Bindal 

机构地区：[1]Biomedical,Magnetic and Semi Conductive Materials Research Center(BIMAS-RC),Sakarya University,Esentepe Campus,Sakarya 54187,Turkey [2]Faculty of Engineerings Department of Metallurgy and Materials Engineering,Sakarya University,Esentepe Campus,Sakarya 54187,Turkey [3]Science&Arts Faculty,Department of Chemistry,Sakarya University,Sakarya 54187,Turkey

出　　处：《Journal of Bionic Engineering》2019年第2期311-318,共8页仿生工程学报（英文版）

摘　　要：Nano-sized hydroxyapatite(HA)particles were synthesized by sol-gel through water and ethanol based mediums of phosphoric acid(H3PO4)and calcium hydroxide(Ca(OH)2)at pH=11 for different calcination time(1 h,2 h,4 h).The effects of calcination time and solution on the crystallinity,morphology and impurity phases of the HA nanoparticles were examined via Fourier Transform Infrared(FTIR),Scanning Electron Microscopy(SEM),Energy Dispersive X-ray Spectroscopy(EDS)and X-ray Diffraction(XRD).It was found that crystallite size and the fraction crystallinity of the synthesized samples increased with calcination time.According to solution medium,only CaO as impurity was appeared in the water-based solvent,CaO and Ca(OH)2 impurities were appeared in the ethanol-based solvent.The lowest crystallinity was 0.92 and the highest crystallinity was 1.73 respectively,depending on the process parameters.The Ca/P atomic ratio closest to the bone was found as 1.5178.As a result,the employed water-based sol-gel processes for 1 h calcination time was determined as the optimum for the formation of nano-sized HA powders using calcium hydroxide and phosphoric acid.

关 键 词：BIOCERAMICS HYDROXYAPATITE CALCINATION time XRD SOL-GEL 

分 类 号：TB[一般工业技术]