Novel Preparation and Characterization of Calcium-Strontium Hydroxyapatite

He Bin Shi; Hong Zhong; Yu Liu; Xing Tian; Ming Chuan Liang

doi:10.4028/www.scientific.net/AMM.217-219.965

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Novel Preparation and Characterization of...

Novel Preparation and Characterization of Calcium-Strontium Hydroxyapatite

Abstract:

Calcium-strontium hydroxyapatite [Ca_5-xSr_x(PO₄)₃OH, Ca-SrHA] were prepared by a novel coprecipitation process. The homogeneous aqueous solution of calcium nitrate, strontium nitrate and phosphoric acid was used as starting material, and ammonia was used as precipitator. A series of Ca-SrHA samples had been synthesized by adding ammonia into the precursor solution to pH10 and following aging at 60°C for 18h. The samples were characterized by X-ray diffraction, Fourier transformed infrared spectroscopy and scanning electron microscopy. The results show that so-prepared samples present essential characteristics of Ca-SrHA. All samples have a short rod-like morphology. The cell parameters of Ca_5-xSr_x(PO₄)₃OH are linear to the value of x, and the infrared absorption bands of PO₄^3- groups shift to lower wave numbers with the increase of x.

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Applied Mechanics and Materials (Volumes 217-219)

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965-968

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https://doi.org/10.4028/www.scientific.net/AMM.217-219.965

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November 2012

Authors:

He Bin Shi, Hong Zhong, Yu Liu, Xing Tian, Ming Chuan Liang

Keywords:

Calcium-Strontium Hydroxyapatite, Coprecipitation, Structural Characterization

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