期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 357, 期 18, 页码 3322-3327出版社
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2011.06.002
关键词
Bioactive glass; Sol-gel processing; Melting; Thermal analysis; Solid state NMR
New sol-gel experimental conditions were tested to prepare a new SiO2-based bioactive glass with high Na2O content. The aim of this work is to investigate the real influence of the synthesis route (sol-gel versus melting) on the glass intrinsic properties and then, later, on the glass behavior and particularly on bioactivity. The obtained glass and its melt derived counterpart were characterized from structural and morphological (porosity, specific surface area) point of view. It could be noticed that the synthesis mode has no significant influence on glass structure. Conversely, the synthesis mode greatly influences the glass texture. The sol-gel derived glass exhibits a greatly higher specific surface area and pore volume than melt derived glass. This parameter may be a key factor of glass bioactivity. (C) 2011 Elsevier B.V. All rights reserved.
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