期刊
APPLIED NANOSCIENCE
卷 7, 期 8, 页码 731-745出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s13204-017-0616-5
关键词
Sol-gel; SBF solution; NBO/BO; HCA
资金
- National Institute of Technology Karnataka, Surathkal
Barium soda lime phosphosilicate [(58SiO(2)-(32-x)BaO-xCao-6Na(2)O-4P(2)O(5) (where x = 15, 20, 25 and 30 mol%)] samples were synthesised using conventional sol-gel method at 700 degrees C sintering temperature. Thermal, structural properties were studied using thermo gravimetric analysis and differential thermal analysis, X-ray diffraction, scanning electron microscopy, fourier transform infrared and Raman spectroscopy. Using Raman spectra non-bridging oxygen concentrations were estimated. The hydroxy-carbonated apatite (HCA) layer formation on samples was analysed for 7 days using simulated body fluid (SBF) soaked samples. The growth of HCA layers self-assembled on the sample surface was discussed as a function of NBO/BO ratio. Results indicated that the number of Ca2+ ions released into SBF solution in dissolution process and weight loss of SB-treated samples vary with NBO/BO ratio. The changes in NBO/BO ratios were observed to be proportional to HCA forming ability of barium soda lime phosphosilicate glasses.
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