Development of Triphasic Calcium Phosphate–Carbon Nanotubes(HA/TCP-CNT) Composite: A Preliminary Study
| Main Authors: | Gunawan, Gunawan, I, Sopyan, S, Nurfaezah, M , ‘Ammar |
|---|---|
| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
Trans Tech Publications, Switzerland
, 2013
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/4994/1/Key_Engineering_Materials_Vols._531%2D532_(2013)_pp_258%2D261.pdf http://www.scientific.net http://eprints.unsri.ac.id/4994/ |
Daftar Isi:
- Triphasic calcium phosphate, composed of a more stable phase hydroxyapatite (HA) and highly soluble tricalcium phosphates (α- and β-TCP) has been synthesized through hydrothermal method. In the present work, an in-situ method to disperse 1wt% multiwall carbon nanotubes (MWCNTs) within HA/TCP powder has been used in order to develop HA/TCP-CNTs composite.XRD results confirmed the formation of HA, α-TCP and β-TCP in both as-prepared powder and composite samples. The graphite peaks appeared in the composite samples as well. FTIR analysis of sintered compacted powder showed the formation of weak bands of PO4 3-as the temperature was increased. The sintered compacts were mechanically tested by Vickers microhardness indentation method. HA/TCP-CNTs composite was found to have a significant of Vickers Hardness of 1.98 GPa after 1100oC sintering. The morphology analysis showed that in-situ deposition technique provides homogeneous dispersion of CNTs in the calcium phosphate matrix