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Preparation of Silicate Substituted Calcium Deficient Hydroxyapatite by Coprecipitation

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Abstract:

This paper presents a typical coprecipitation method to synthesize silicate-substituted calcium deficient hydroxyapatite (SiCDHA). A homogeneous aqueous solution of Ca(NO3)2• 4H2O, H3PO4 and Si(CH3CH2O)4 (TEOS) was used as precursor, and NH3 aqueous solution as precipitator. A series of samples were prepared by adding the precipitator to the precursor then following a general coprecipitation route. The results showed that the so-prepared samples were SiCDHA. SiCDHA was thermal unstable and decomposed to tricalcium phosphate and wollastonite-like phase. These new phases were helpful to improve the bioactivity of sintered SiCDHA ceramics.

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Bioceramics 19 View Preview

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Periodical:

Key Engineering Materials (Volumes 330-332)

Pages:

83-86

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.330-332.83

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Online since:

February 2007

Authors:

He Bin Shi, Hong Zhong, Yu Liu, Feng Zhao Zhang, Ming Chuan Liang, Ming Chen

Keywords:

Calcium Deficient Hydroxyapatite, Coprecipitation, Silicate

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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