On the microstructure of biocomposites sintered from Ti, HA and bioactive glass.
Sintering reactions and fine structures of the biocomposites prepared from powder mixtures of titanium ( alpha -Ti), hydroxyapatite (HA) and bioactive glass (BG) (SiO2-CaO-P2O5-B2O3-MgO-TiO2-CaF2) were investigated by X-ray diffraction and transmission electron microscopy. The results showed that complex reactions among the starting materials mainly depended on the initial Ti/HA ratios as well as the sintering temperatures. And the reaction could be expressed by the following illustrative equation: Ti+Ca10(PO4)6(OH)2-->CaTiO3+CaO+TixPy+(Ti2O)+(Ca4P2O9)+H2O.
Ning
C Q
CQ
Center for Biomedical Engineering, Wenner Gren Research Laboratory, University of Kentucky, Lexington, KY 40506, USA. cqning@yahoo.com
Zhou
Y
Y
D001672:Biocompatible Materials / Q000737:chemistry*; D045424:Complex Mixtures / Q000737:chemistry; D017886:Durapatite / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D006358:Hot Temperature; D008420:Manufactured Materials / Q000032:analysis; D008422:Materials Testing; D008968:Molecular Conformation; D011208:Powders; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D001672:Biocompatible Materials; D045424:Complex Mixtures; D011208:Powders; D017886:Durapatite; D014025:Titanium