Title :
Characterization and Solubility of SiO2-TiO2-CaO-Na2O/SrO Bioactive Glasses
Author :
Li, Yuhua ; Coughlan, A. ; Wren, A.W.
Author_Institution :
Inamori Sch. of Eng., Alfred Univ., Alfred, NY, USA
Abstract :
This project investigates the characterization and solubility of a bioactive glass series where Strontium (Sr) and Sodium (Na) are substituted. X-ray diffraction (XRD) was employed to ensure that each starting material is amorphous. Differential Thermal Analysis (DTA) was used to determine the thermal profile of each material, in particular, the glass transition temperature (Tg), the crystallization temperature (Tc1) and the melting temperature (Tm). Magic Angle Spinning - Nuclear Magnetic Resonance (MAS-NMR) was used to probe the local 29Si environment. Simulated Body Fluid (SBF) testing revealed a CaP surface layer on each glass after 7 days.
Keywords :
X-ray diffraction; amorphous state; bioceramics; calcium compounds; crystallisation; differential thermal analysis; glass ceramics; glass transition; magic angle spinning; materials preparation; melting; silicon compounds; sodium compounds; solubility; strontium compounds; titanium compounds; CaP; MAS-NMR; SBF testing; SiO2-TiO2-CaO-(Na2O-SrO); X-ray diffraction; amorphous material; bioactive glass characterization; bioactive glass solubility; crystallization temperature; differential thermal analysis; glass transition temperature; magic angle spinning - nuclear magnetic resonance; melting temperature; simulated body fluid; sodium; strontium; surface layer; thermal profile determination; time 7 day; Bones; Glass; Nuclear magnetic resonance; Surface morphology; Thermal analysis; X-ray scattering; Bioactive Glasses; Sodium; Solubility; Strontium;
Conference_Titel :
Bioengineering Conference (NEBEC), 2013 39th Annual Northeast
Conference_Location :
Syracuse, NY
Print_ISBN :
978-1-4673-4928-4
DOI :
10.1109/NEBEC.2013.64
