Nanocrystalline Hydroxyapatite Ceramics Prepared by Hydrolysis in Polyol Medium, Microstructure and Mechanical Properties after Spark Plasma Sintering
DOI:
https://doi.org/10.24297/jac.v6i3.6594Keywords:
Chemical synthesis, Bioceramics, Nanoparticles, Spark Plasma SinteringAbstract
This Letter describes a new approach for the synthesis of hydroxyapatite (HA) nanoparticles by polyol process has been successfully conducted by spark plasma sintering process, resulting in a dense hydroxyapatite compacts. Besides, the sintering behaviour of hydroxyapatite powders at different temperatures ranging from 800°C to 950°C at 50 MPa was studied. The microstructure, Vickers microhardness, fracture toughness and density are described. The suitable sintering condition under the pressure of 50 MPa is 900°C for 5 min. A maximum value of the density was reached at around 900°C, and then decreased with further increase in the temperature due to the decomposition of hydroxyapatite into β-tricalcium phosphates.
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References
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[8] Mechay, A., Elfeki, H., Schoenstein, F., Jouini, N. 2012. Nanocrystalline hydroxyapatite ceramics prepared by hydrolysis in polyol medium. Chemi. Phys. Lett. 541, 75.
[9] Sang, Y., Groza, J.R., Sudarshan, T.S., Yamazaki, K. 1996. Diffusion donding of boron nitride on metal substrates by plasma activated sintering (PAS) process. Scripta Materialia, 34, 1383-86.
[10] Groza, J.R. 1994. Consolidation of atomized NiAl powders by plasma activated sintering process. Scripta. Metallurgica et Materialia. 30, 47.
[11] Gu, Y.W., Loha, N.H., Khora, K.A., Tora, S.B., Cheangb, P. 2002. Spark plasma sintering of hydroxyapatite powders. Biomaterials, 23, 37.
[12] Rodriguez-Carvajal, J. 1993. Recent advances in magnetic structure determination by neutron powder diffraction. Physica B: Condensed. Matter. 192, 55.
[13] Rietveld, H.M. 1969. A profile refinement method for nuclear and magnetic structures. J. Applied Crystallography, 2,65-71.
[14] Champion, E., Gautier, S., Bernache-Assollant, D. 1996.Characterization of hot pressed Al2O3-platelet reinforced hydroxyapatite composites. J. Mater. Sci. : Mater. in Medic.7, 125-130.
[15] Bose, S., Dasgupta, S., Tarafder, S., Bandyopadhyay, A. 2010. Microwave-processed nanocrystalline hydroxyapatite: Simultaneous enhancement of mechanical and biological properties. Acta Biomaterialia, 6, 3782-3790.
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[17] Jarcho, M., Bolen, C.H., Thomas, M.B., Bobick, J., Kay, J.F., Doremus, R.H. 1976. Hydroxyapatite synthesis and characterization in dense polycrystalline form. J. Mater. Sci. 11, 2027-35.
[18] Steil, M.C., Fouletier, J., Kleitz, M., Labrune, P. 1999. BICOVOX : Sintering and grain size dependence of the electrical properties. J. Europ. Ceram. Soc. 19, 815.
[19] Wang, P.E., Chaki, T.K. 1993. Sintering behaviour and mechanical properties of hydroxyapatite and dicalcium
phosphate. J. Mater. Sc.: Mater. in Medic. 4, 150-58.
[20] Li, T., Li, Q., Fuh, J.Y.H., Yu, P.C., Lu, L., Wu, C.C. 2007. Effects of AGG on fracture toughness of tungsten carbide. Mater. Sci. and Engine. A . 587, 445-446.
[21] Coronel, L., Jernot, J.P., Osterstock, F. 1990. Microstructure and mechanical properties of sintered glass. J. Mater. Sci. 25, 4866–72.
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2013-01-13
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Nanocrystalline Hydroxyapatite Ceramics Prepared by Hydrolysis in Polyol Medium, Microstructure and Mechanical Properties after Spark Plasma Sintering. (2013). JOURNAL OF ADVANCES IN CHEMISTRY, 6(3), 1085-1092. https://doi.org/10.24297/jac.v6i3.6594
