Article ID Journal Published Year Pages File Type
1461205 Ceramics International 2014 7 Pages PDF
Abstract

Silicon-substituted nano-hydroxyapatite powders with up to 4.0 wt% silicon were prepared by a hydrothermal method. X-ray fluorescence spectroscopy, X-ray diffraction, and transmission electron microscopy analyses revealed that some SiO44− substituted PO43− in apatite lattice, while other SiO44− functional groups remained in the mother liquid. The content of silicon influenced the thermal stability, density, and grain size of the hydroxyapatite bio-ceramic samples at elevated temperatures. For instance, the crystallinity declined and grain size decreased slightly with increasing silicon contents. Whisker-type particles with different diameters grew on the silicon-substituted hydroxyapatite bio-ceramic surface upon hydrothermal vapor post-synthesis treatment of the bio-ceramics.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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