An investigation of bioactive glass powders by sol‐gel processing

作者: R. Li , A. E. Clark , L. L. Hench

DOI: 10.1002/JAB.770020403

关键词: Composite materialMaterials testingSol-gelChemical engineeringInterfacial bondBioactive glassMaterials scienceHydroxyapatitesLayer (electronics)

摘要: Bioactive glass powders, with a composition of SiO2-CaO-P2O5,have been successfully synthesized via sol-gel process at considerably loer temperatures than required for conventional melting method. powders made methods form an interfacial bond wih none when they are implanted. Bonding is correlated the formation surface hydroxyapatite layer. This study examinded layer in Tris-buffered solution as function SiO2 content derived powders. A FT-IRRS technique was used to monitor on X-ray diffraction analysis and BET were also characterize chemical physical properties bioactive It discovered that: (a) rate decreased increasing whose less 90 mol%; (b) film does not more (c) limit, beyond which lost their bioactivity, much higher mad through (90%) those by (60%). These results indicate that it possible significantly expand range microstructural control processing techniques.

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