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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 236-238Mineralization of a Bioactive Si-Ca-P System Wet...

Mineralization of a Bioactive Si-Ca-P System Wet Gel in Aqueous K₂HPO₄ Solution

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Abstract:

A bioactive Si-Ca-P system (designated 58S) wet gel was prepared via a sol-gel method. The wet gel was reacted continuously in 0.25M K₂HPO₄ solution with a starting pH value of 9.0 at 37 °C for different time. The structural and compositional changes resulting from the conversion reaction were characterized using X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and inductive coupled plasma spectroscopy. The results indicated that the induction period for the CDHA nucleation on the surface of the 58S bioactive wet gel was about 3 days. The conversion mechanism of the products was also discussed.

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Application of Chemical Engineering

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Periodical:

Advanced Materials Research (Volumes 236-238)

Pages:

1910-1913

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.236-238.1910

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Online since:

May 2011

Authors:

Zhi Qiang Feng, Jia Zhe Guo, Ya Dong Li, Yan Lin Huang

Keywords:

Bioactive Wet Gel, Ca-P Precipitations, Characterization, Conversion Mechanism

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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