Influence of Thermal Treatment Temperature on Phase Formation and Bioactivity of Glass-Ceramics Based on the SiO₂-Na₂O-CaO-P₂O₅ System

Abstract:

In this work, the thermal treatment temperature effect on phase formation and bioactivity of glass-ceramics based on the SiO₂-Na₂O-CaO-P₂O₅ system has been studied. The chemical composition of the system is 45 wt.% SiO₂, 24.5 wt.% Na₂O, 24.5 wt.% CaO and 6 wt.% P₂O₅ (45S5). The rice husk ash is used as the natural raw materials instead of commercial SiO_2. All of the investigated compositions were prepared by melting the glass mixtures at 1350°C for 3 h. The resulting glass samples were heated at different thermal treatment temperatures ranging from 750 to 1050°C with fixed dwell-time for 4 h for crystallization. Phase identification of the 45S5 glass ceramics was carried out by X-Ray diffraction (XRD). Moreover, the physical properties such as density, porosity and mechanical properties were systematically investigated. It was found that, the increasing of heat treatment temperature led to the increasing of the Na₂Ca₂Si₃O₉ phase and obtaining better bioactive behavior after incubation of glass-ceramics in simulated body fluid (SBF) for 7 days. The maximum hardness value of 4.02 GPa was achieved after heating at 1050°C for 4 h. However, the density value has slightly changed with various heat treatment temperatures.

• Periodical: Key Engineering Materials (Volume 798)
• Pages: 229-234
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.798.229
• Online since: April 2019
• Authors: Puripat Kantha, Naris Barnthip, Kamonpan Pengpat, Tawee Tunkasiri, Nuttapon Pisitpipathsin*
• Keywords: Bioactive, Bioglass, Natural Raw Materials, Thermal Treatment

References

[1] O. Bretcanu, X. Chatzistavrou, K. Paraskevopoulos, R. Conradt, I Thompson, A. R. Boccaccini, Sintering and crystallisation of 45S5 bioglass powder, Journal of the European Ceramic Socity. 29 (2009) 3299-3306.

DOI: 10.1016/j.jeurceramsoc.2009.06.035

[2] N. Pisitpipathsin, P. Kantha, S. Eitssayeam, G. Rujijanagul, R. Guo, Amar S. Bhalla, K. Pengpat, Effect of BCZT on Electrical Properties and Bioactivity of 45S5 Bioglass, Integrated Ferroelectrics. 142(1) (2013) 144-153.

DOI: 10.1080/10584587.2013.780574

[3] L. Lefebvre, J. Chevalier, L. Gremillard, R. Zenati, G. Thollet, D. Bernache-Assolant, A. Govin, Structural tranformations of bioactive glass 45S5 with thermal treatments, Acta Materialia. 55 (2007) 3305-3313.

DOI: 10.1016/j.actamat.2007.01.029

[4] Q-Z Chen, G. A. Thouas, Fabrication and characterization of sol–gel derived 45S5 Bioglass–ceramic scaffolds, Acta Biomaterialia. 7 (2011) 3616-3626.

DOI: 10.1016/j.actbio.2011.06.005

[5] M.G. Cerruti, D. Greenspan, K. Powers, An analytical model for the dissolution of different particle size samples of Bioglass((R)) in TRIS-buffered solution, Biomaterials. 26(24) (2005) 4903-4911.

DOI: 10.1016/j.biomaterials.2005.01.013

[6] D.A. Cortés, A. Medina, J.C. Escobedo, S. Escobedo, and M.A. López, Effect of wollastonite ceramics and bioactive glass on the formation of a bonelike apatite layer on a cobalt base alloy, Journal of Biomedical Materials Research part A. 70 (2004) 341–346.

DOI: 10.1002/jbm.a.30092

[7] J. P. Nayak, S. Kumar, J. Bera, Sol-gel synthesis of bioglass-ceramics using rice husk as source for silica and its characterization, Journal of Non-Crystalline Solids. 356 (2010) 1447-1451.

DOI: 10.1016/j.jnoncrysol.2010.04.041