comparison between structural and morphological properties of hydroxyapatite nanoparticles synthesized by solution combustion and co-percipitation

the effect of two different techniques (co- precipitation and combustion methods) on the properties of hydroxyapatite (hap) prepared from calcium nitride [ca(no₃)₂] and phosphoric acid [h₃po₄] was investigated. the employed precipitation processes were found to be suitable for the production of nano-sized pure ha powders. the combustion method was a new method for syntheses of hap and we can produce the mesoporous structure with different amount of fuel. samples characterization were achieved by powder x ray diffraction (xrd), transmission electron microscopy (tem), and scanning electron microscopy (sem.(