Volume 10, Issue 2 (June 2013)                   IJMSE 2013, 10(2): 57-63 | Back to browse issues page

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J. Jac Faripour Maybody, A. Nemati, E. Salahi. SYNTHESIS AND PROPERTIES OF MWCNT-HAP COMPOSITES VIA SOL-GEL TECHNIQUE. IJMSE 2013; 10 (2) :57-63
URL: http://ijmse.iust.ac.ir/article-1-562-en.html
SYNTHESIS AND PROPERTIES OF MWCNT-HAP COMPOSITES VIA SOL-GEL TECHNIQUE
J. Jac Faripour Maybody , A. Nemati , E. Salahi
Abstract:   (24225 Views)
In the present study, bioceramic composites based hydroxyapatite (HAp) reinforced with carbon nanotubes (CNTs) was synthesized via sol-gel technique. The dried gels were individually heated at a rate of 5°C/min up to 600°C for 2 h in a muffle furnace in order to obtain HAp-MWCNTs mixed powder. Composites were characterized by XRD, FT-IR, SEM, TEM/SAED/EDX and Raman spectroscopy techniques. Results showed the synthesis of HAp particles in the MWCNTs sol which was prepared in advance, leads to an excellent dispersion of MWCNTs in HAp matrix. Apparent average size of crystallites increased by increasing the percentage of MWCNTs. The average crystallite size of samples (at 600°C), estimated by Scherrer’s equation was found to be ~50-60 nm and was confirmed by TEM. MWCNTs kept their cylindrical graphitic structure in composites and pinned and fastened HAp by the formation of hooks and bridges.
Keywords: Ceramic-Matrix composites; Nanostructures; CNT; sol-gel; SEM; TEM.
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Type of Study: Research Paper |
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