Abstract
The effects of increasing bioactive glass additions, SiO2–TiO2–CaO–Na2O–ZnO up to 25 wt% in increments of 5 wt%, on the physical and mechanical properties of hydroxyapatite (HA) sintered at 900, 1000, 1100 and 1200 °C for 2 h was investigated. Increasing both the glass content and the temperature resulted in increased HA decomposition. This resulted in the formation of a number of bioactive phases. However the presence of the liquidus glass phase did not result in increased densification levels. At 1000 and 1100 °C the additions of 5 wt% glass resulted in a decrease in density which never recovered with increasing glass content. At 1200 °C a cyclic pattern resulted from increasing glass content. There was no direct relationship between strength and density with all samples experiencing no change or a decrease in strength with increasing glass content. Weibull statistics displayed no pattern with increasing glass content.
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Yatongchai, C., Wren, A.W., Curran, D.J. et al. Investigating the effect of SiO2–TiO2–CaO–Na2O–ZnO bioactive glass doped hydroxyapatite: characterisation and structural evaluation. J Mater Sci: Mater Med 25, 1645–1659 (2014). https://doi.org/10.1007/s10856-014-5215-3
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DOI: https://doi.org/10.1007/s10856-014-5215-3