American Journal of Materials Science and Engineering
ISSN (Print): 2333-4665 ISSN (Online): 2333-4673 Website: Editor-in-chief: Dr. SRINIVASA VENKATESHAPPA CHIKKOL
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American Journal of Materials Science and Engineering. 2017, 5(1), 1-5
DOI: 10.12691/ajmse-5-1-1
Open AccessArticle

Rietveld Refinement of the Crystal Structure of Hydroxyapatite Using X-ray Powder Diffraction

A. El Yacoubi1, A. Massit1, S. El Moutaoikel1, A. Rezzouk2 and B. Chafik El Idrissi1,

1Team Materials Surfaces Interfaces, Laboratory Materials and Energitics, Fac of Sciences, University Ibn Tofail, kenitra, Morocco

2LPS, Fac. des Sciences Dhar El Mehraz, BP 1796, Atlas FES, Morocco

Pub. Date: May 27, 2017

Cite this paper:
A. El Yacoubi, A. Massit, S. El Moutaoikel, A. Rezzouk and B. Chafik El Idrissi. Rietveld Refinement of the Crystal Structure of Hydroxyapatite Using X-ray Powder Diffraction. American Journal of Materials Science and Engineering. 2017; 5(1):1-5. doi: 10.12691/ajmse-5-1-1


The stoichiometric hydroxyapatite, Ca10(PO4)6(OH)2 is prepared by an aqueous precipitation method at room temperature, the main reactants were Ca(OH)2 and H3PO4 without addition of ammonia solution. The sample was analyzed by Fourier transformed infrared spectroscopy (FTIR) which reveals the presence of a small amount of carbonate due to absorbance of carbon dioxide from the air during synthesis process. The crystal structure was carried out by X-ray powder diffraction data and the Rietveld method using FullPROF software. We confirmed that this material has a hexagonal structure (space group P63/m; Z = 1). Unit-cell parameters with higher precision (a = b = 9.4159(4) Å , c = 6.8819(3) Å, α = β = 90°; and γ = 120°).

hydroxyapatite infrared spectroscopy X-ray powder diffraction Rietveld refinement

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