Comparison in Phase Transformation of Calcium Phosphate and Zirconium Doped Calcium Phosphate Biomaterials by In Situ XRD

Abstract:

Pure calcium phosphate and ZrO₂ doped calcium phosphate biomaterials were synthesized using an organic based phosphoric acid (DEHPA) as its starting material. The precipitated products obtained from the sol-gel reaction were then used to compare the phase transformation using in-situ XRD. The study shows that amongst the notable difference between these two samples is that the ZrO₂ doped calcium phosphate tends to form the β-Ca(PO₃)₂, β-TCP and HA phases at lower heating temperatures compared to the pure calcium phosphate. Another major different seen in the phase transformation of the ZrO₂ doped calcium phosphate is the transformation of β-TCP into HA before it leads to the formation of α-TCP at higher temperatures.

• Periodical: Applied Mechanics and Materials (Volume 83)
• Pages: 22-27
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.83.22
• Online since: July 2011
• Authors: Meor Yusoff Meor Sulaiman, Paulus Wilfred, Masliana Muslimin
• Keywords: Calcium Phosphate, DEHPA, Hydroxyapatite (HAP), In Situ X-Ray Diffraction (XRD), ZrO₂ Doped, α-TCP, β-TCP

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