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Research Article | Open Access

Characterization of mechanothermal-synthesized hydroxyapatite–magnesium titanate composite nanopowders

Materials Engineering Department, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran
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Hydroxyapatite–magnesium titanate composite nanopowders have been developed using a mechanothermal process. Thermal treatment of the milled powders at 700 ℃ resulted in the formation of HAp/MgTiO3–MgO nanocomposite. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX) techniques were utilized to characterize the synthesized powders. The results revealed that the dominant phases after mechanical activation were hydroxyapatite, anatase (TiO2) and periclase (MgO); while after thermal annealing process at 700 ℃, hydroxyapatite along with geikielite (MgTiO3) and periclase (MgO) were the major phases. Based on the XRD analysis, the evaluation of structural features of the samples indicated that the average crystallite sizes of hydroxyapatite after 10 h of milling and subsequent thermal treatment at 700 ℃ were about 21 nm and 34 nm, respectively. Microscopic observations illustrated that the synthesized powders contained large agglomerates which consisted of significantly finer particles with spheroidal morphology. It is concluded that the mechanothermal method can be used to produce hydroxyapatite-based nanocomposite with appropriate structural and morphological features.


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Journal of Advanced Ceramics
Pages 63-70
Cite this article:
FAHAMI A, NASIRI-TABRIZI B. Characterization of mechanothermal-synthesized hydroxyapatite–magnesium titanate composite nanopowders. Journal of Advanced Ceramics, 2013, 2(1): 63-70.








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Received: 13 January 2013
Revised: 30 January 2013
Accepted: 31 January 2013
Published: 06 April 2013
© The author(s) 2013

Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.