J. Mater. Sci. Technol. ›› 2010, Vol. 26 ›› Issue (12): 1114-1118.

• Research Articles • 上一篇    下一篇

Synthesis and Characterization of Bioceramic Calcium Phosphates by Rapid Combustion Synthesis

R.Vijayaraghavan   

  1. Materials Division, School of Advanced Sciences, VIT University,Vellore 632 014, Tamil Nadu, India
  • 收稿日期:2010-02-24 修回日期:2010-06-16 出版日期:2010-12-31 发布日期:2010-12-21
  • 通讯作者: R.Vijayaraghavan

Synthesis and Characterization of Bioceramic Calcium Phosphates by Rapid Combustion Synthesis

S. Sasikumar R. Vijayaraghavan   

  1. Materials Division, School of Advanced Sciences, VIT University, Vellore 632 014, Tamil Nadu, India
  • Received:2010-02-24 Revised:2010-06-16 Online:2010-12-31 Published:2010-12-21
  • Contact: R. Vijayaraghavan

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摘要： Calcium hydroxyapatite (Ca10(PO4)6(OH)2) has been synthesized in short duration by rapid solution combustion by employing different fuels. Calcium nitrate is taken as source of calcium and diammonium hydrogen phosphate serves as the source of phosphate ions. Citric acid, tartaric acid, sucrose, glycine and urea were used as the fuels and nitrate ions and nitric acid were used as oxidizers. The influence of fuels on the morphology of the phase formed is studied. Results of the studies by powder X-ray diffraction and Fourier - transform infrared spectroscopy shows the formation of hydroxyapatite as a major phase for all the fuels. The thermal analysis of the decomposed gel shows variation in heat content for different fuels. Scanning electron microscopy shows different morphologies of the products obtained by different fuels. Chemical analyses to determine the Ca:P atomic ratios in synthesized ceramics show that the ratio is 1:1.66

关键词: Bioceramics, Combustion synthesis, Thermochemistry, Morphology

Abstract: Calcium hydroxyapatite (Ca10(PO4)6(OH)2) has been synthesized in short duration by rapid solution combustion by employing different fuels. Calcium nitrate was taken as source of calcium and diammonium hydrogen phosphate served as the source of phosphate ions. Citric acid, tartaric acid, sucrose, glycine and urea were used as the fuels and nitrate ions and nitric acid were used as oxidizers. The influence of fuels on the morphology of the phase formed was studied. Results of the studies by powder X-ray diffraction and Fourier-transform infrared spectroscopy showed the formation of hydroxyapatite as a major phase for all the fuels. The thermal analysis of the decomposed precursor showed variation in heat content for different fuels. Scanning electron microscopy showed different morphologies of the products obtained by different fuels. Chemical analyses to determine the Ca:P atomic ratio in synthesized ceramics showed that the ratio was 1:1.66.

Key words: Bioceramics, Combustion synthesis, Thermochemistry, Morphology