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Hydroxyapatite HA having chemical formula Ca10PO46OH2, is the main chemical component ofhuman bone tissue 70%. This is the reason why it has been widely engaged in the dental andnon-load bearing implantations, to cope up with the bone response as a bioactive material. In thisstudy HA powder was synthesized by wet chemical method, using phosphoric acid H3PO4 andeggshells. The synthesized HA powder was characterized by X-ray diffraction analysis, Scanningelectron microscopy SEM, Energy-dispersive X-ray spectroscopy EDX and Fourier transformFT-IR spectroscopy. The Thermos gravimetric analysis TGA-DTA was also carried out to evaluatethe stability of the synthesized HA powder at higher temperatures. The results of the study indicatethat sintered at 900°C HA powder resembles the feature of pure and single apatite phasehaving favourable Ca-P ratio ranging from 1.7 to 2.4.


Hydroxyapatite, Eggshell, Characterization, Bio-Materials, Stoichiometric Apatite

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Khandelwal, H. and Prakash, S. 2016 Synthesis and Characterization of Hydroxyapatite Powder by Eggshell. Journal of Minerals and Materials Characterization and Engineering, 4, 119-126. doi: 10.4236-jmmce.2016.42011.

Autor: Himanshu Khandelwal1*, Satya Prakash2



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