Synthesis and characterization of tri-calcium phosphate doped with strontium, chloride and fluoride ions

In the biomechanical employment, the researches regularly explore for the design and selection of biomaterials with favorable mechanical characteristics and particular requirements. This is for the purpose of employ it for bone reform and hard tissue replacement. Several bioceramic materials, which are a huge inorganic class of nonmetallic substances, are utilized for implantation in the human body. An example of these materials is β-tri-calcium phosphate (β-TCP). It is produced from the procedures NaH2PO4 and an aqueous solution of Ca (NO3)2 by wet precipitation method. The aim of this study was to combine tri-calcium phosphates doped with strontium, chloride and fluoride ions. A precipitation procedure was applied for synthesizing pure and doped tri-calcium phosphates. The doped samples were sintered at 1100ºC for 1 hour. To determine the measurement of the density an Archimedes method was applied. It was observed that the addition of strontium (Sr+2) and chloride (Cl-) decreased the amount of density of the samples while, the increasing of the fluoride (F-) increasing the density of the samples due to decrease of a decomposition rate of materials that shows the highest thermal stability and improves the mechanical characteristics after sintering temperature. The strontium (Sr+2), chloride (Cl-) and fluoride (F-) doped samples showed the variety in their density conduct after the sintering at 1100ºC for 1 hour. The XRD diffraction was employed for the characterization of the presence of phases and bonds. The outcomes of the study reached the peaks of TCP in the XRD diffraction for all samples. SEM was applied for obtaining grain sizes of the sample.