Development of Triphasic Calcium Phosphate-Carbon Nanotubes(HA/TCP-CNT) Composite:A Preliminary Study
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 l wt% 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 PO43-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 1100℃ sintering.The morphology analysis showed that in-situ deposition technique provides homogeneous dispersion of CNTs in the calcium phosphate matrix.
Hydroxyapatite α-TCP β-TCP Carbon Nanotubes Hydrothermal method
Gunawan I.Sopyan S.Nurfaezah M.‘Ammar
Department of Manufacturing and Materials Engineering, Faculty of Engineering,International Islamic Department of Manufacturing and Materials Engineering, Faculty of Engineering,International Islamic
国际会议
广州
英文
258-261
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）