EFFECT OF TEMPERATURE ON THE CHEMICAL AND PHYSICAL PROPERTIES OF SYNTHETIC FLUOROAPATITE

Fluroapatite synthetic powders used as bioceramic coatings onto metallic substrate:the coatings are obtained by plasma spray tecnique ant its high temperature could modify the chemistry of the coating. Thermal behaviour of fluoroapatite is studied by means of diffractometric, infrared study and thermal analysis.After thermal treatment its high crystallinity,chemical and physical properties are maintained.The thermal effect cause a loss of weight due principally to CaCO3 decomposition, present as minor phase in the untreated fluoroapatite