Part I - Sinterability of Calcium Phosphate Biomaterials Obtained from Fossilized Calcareous Shells for Biomedical Applications

Abstract

Failures, infections, tumors are some bone defects causes. To repair these defects, studies show calcium phosphate bioceramics, which have been chemical and crystallographic similarity with the human bone and are biocompatible, favoring the interaction of these with vivo organisms, for bone repair. These biomaterials can be obtained from different synthesis methods. The powders, in this study, were obtained by wet method, using alternative raw material calcium carbonate from fossilized calcareous shells. The present paper aimed to elaborate and characterize different calcium phosphate ratio compositions: (i)1.4; (ii)1.6 and (iii)1.7 molar, sintered for 2 hours at 1100°C and 1200°C, further these powders were compressed in forms of cylinders. The characterization was realized by X-Ray Fluorescence (XFR), Fourier Transform Infrared Spectroscopy (FTIR) and X-ray diffractometry (XRD). The chemical and physical results shown small variations according to the Ca/P molar ratio and temperature increases.