Preparation and characterization of fluoridated hydroxyapatite coatings on HT-C/C composites

► An FHA coating was successfully prepared on C/C by a two-step hydrothermal method. ► The achieved F-doped HA coating on C/C showed a bonding strength of up to 54.2 N. ► Doping F can enhance the mechanical and dissolution properties of HA on C/C.