Abstract

In this paper, we present the preparation and electrical properties of nanocrystalline powders of hydroxyapatite (HAP) bioceramics, produced using the starting materials Ca(H2PO4)2, Ca(OH)2 and a high energy dry ball milling technique. Titanium calcium phosphate (CaP–Ti) was also prepared, the raw materials Ca(H2PO4)2 and TiO2, and examined. The HAP was obtained of milling 5, 10 and 15h while in the reaction with CaP–Ti, the CaTi4P6O24 phase was obtained after 5, 10 and 15h of milling. The HAP and the ceramic calcium phosphate with titanium (CaP–Ti) were studied by X-ray powder diffraction, DC and AC conductivity and dielectric constant measurements.

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