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关于由钛、羟基磷灰石和生物活性玻璃烧结而成的生物复合材料的微观结构。

On the microstructure of biocomposites sintered from Ti, HA and bioactive glass.

作者信息

Ning C Q, Zhou Y

机构信息

Center for Biomedical Engineering, Wenner Gren Research Laboratory, University of Kentucky, Lexington, KY 40506, USA.

出版信息

Biomaterials. 2004 Aug;25(17):3379-87. doi: 10.1016/j.biomaterials.2003.10.017.

DOI:10.1016/j.biomaterials.2003.10.017

PMID:15020110

Abstract

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.

摘要

通过X射线衍射和透射电子显微镜研究了由钛（α-Ti）、羟基磷灰石（HA）和生物活性玻璃（BG）（SiO₂-CaO-P₂O₅-B₂O₃-MgO-TiO₂-CaF₂）粉末混合物制备的生物复合材料的烧结反应和精细结构。结果表明，起始材料之间的复杂反应主要取决于初始Ti/HA比以及烧结温度。并且该反应可以用以下说明性方程表示：Ti + Ca₁₀(PO₄)₆(OH)₂→CaTiO₃ + CaO + TixPy + (Ti₂O) + (Ca₄P₂O₉) + H₂O 。