Nano-size ?-tricalcium phosphate powders with average grain size of 50 nm were prepared by the wet chemical precipitation method with calcium nitrate and diammonium hydrogen phosphate as calcium and phosphorus precursors, respectively. The pH of the system was maintained at 8 and 10.8 by adding of sodium hydroxide. Filtered cake was dried at 80?C and calcined at 700?C. The dried and calcined powders were characterized using X-ray diffractrometry (XRD), Fourier transform infrared spectroscopy (FTIR), inductively coupled plasma atomic emission spectroscopy (ICPAES) and scanning electron microscopy (SEM).
Early years, bio-nano-composites materials are interesting in advanced engineering applications fields. In order to, biological properties of the 10Ce-TZP/Al 2 O 3 nanocomposite was evaluated by the addition of HA nanopowder for medical applications. In this research, a bio-nano-composite consisting of CeO2-stabilized zirconia (Ce-TZP), Al 2 O 3 and Hydroxyapatite (HA) powders proposed to use for medical application .The first step, nano-powders of Ce-TZP and Al 2 O 3 , were blended by fast milling machine. Then, nano-powder of HA was added to the alumina-zirconia (ZA) mixture from 10 to 40 vol%, and homogenized again. In final step, mixed powder was cold pressed and sintered at1600 °C for 120 min. Crystal phase of the sintered samples were characterized by X-ray diffraction(XRD),the density and bending strength were measured and cellular response test was performed with osteoblastic cell-lines by MG63 cell-lines and the morphology of the proliferated cells was observed with FESEM too. From the strength and cellular response evaluations of samples ,specimens with 30 vol% HA showed the best result, also XRD patterns confirmed this results .
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