Development of Triphasic Calcium Phosphate–Carbon Nanotubes(HA/TCP-CNT) Composite: A Preliminary Study

Gunawan, Gunawan and I, Sopyan and S, Nurfaezah and M , ‘Ammar (2013) Development of Triphasic Calcium Phosphate–Carbon Nanotubes(HA/TCP-CNT) Composite: A Preliminary Study. Key Engineering Materials, 531 (2013). pp. 258-261. ISSN 1662-9795

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    Abstract

    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

    Item Type: Article
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Divisions: Faculty of Engineering > Department of Mechanical Engineering
    Depositing User: Gunawan -
    Date Deposited: 09 Dec 2014 10:44
    Last Modified: 09 Dec 2014 10:44
    URI: http://eprints.unsri.ac.id/id/eprint/4994

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