Nano-BiomaterialsNo Access

MECHANOCHEMICAL SYNTHESIS AND CHARACTERIZATION OF NANOSTRUCTURE FORSTERITE BIOCERAMICS

M. H. FATHI

Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran

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and

M. KHARAZIHA

Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran

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https://doi.org/10.1142/S0217979208047948Cited by:12 (Source: Crossref)

Abstract

Recent investigations suggest that forsterite ceramics possess good biocompatibility and mechanical properties and might be suitable for potential application like bone implant material. In this study, nanocrystalline forsterite (Mg₂SiO₄) powder was prepared by mechanochemical method and subsequent heat treatment and the effect of fluorine ion as catalyst was studied. Mechanochemical process and heat treatment were done on the MgCO₃, SiO₂ and (NH₄)₂SiF₆ powders. The synthesized powders were characterized by X-ray diffraction (XRD), thermogravimetric (TG) analyses and scanning electron microscopy (SEM). The synthesized nano-powder had particle size smaller than 100 nm. The crystallite size of powders after 5 hours mechanical activation was 18 nm. Mechanical activation in the presence of fluorine ion affects the mechanism of forsterite formation and increase the rate of decomposition of MgO and fabrication of forsterite.

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