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Effect of physical and chemical parameters on the β-Tricalcium phosphate synthesized by the wet chemical method

Asmaa Massit, Majda Fathi, Ahmed El Yacoubi, Abdelilah Kholtei, Brahim Chafik El Idrissi


In this paper, the synthesis of nanosized powders β -Tricalcium phosphate β -Ca3(PO4)2 was studied by the wet chemical method at different values of reaction temperature, initial concentration of diammonium hydrogen phosphate (NH4)2HPO4, calcium nitrate tetrahydrate Ca(NO3)2·4H2O addition rate, pH of reaction and aging time. All these parameters have a great impact on the properties of the resulting β-TCP nano powders. Analysis results of morphology, structure of TCP powder from infrared (IR) spectra, X-ray diffraction (XRD) and transmission electron microscopy (TEM) indicated that the synthesized TCP powder had spherical crystal shape with crystallite size, calculated by XRD method, less than 60 nm, mono and biphasic structure composed of βTCP with pyrophosphate calcium or hydroxyapatite. The variation of the synthesis conditions did not affect the morphology, but it affect the size of crystallites and particles.

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