NANOSTRUCTURED CARBONATED HYDROXY APATITE AND METHOD AND SYSTEM FOR MAKING THE SAME

摘要

The present invention provides a method for preparing sintered nanostructured carbonated hydroxyapatite (CHA). The method comprises mixing of CHA powders with a sintering aid to form a mixture, dry pressing the mixture, sintering the mixture at a first predetermined temperature for a first predetermined time period in air atmosphere without provision of external C02 gas to form nanostructured CHA, cooling the nanostructured CHA to a second predetermined temperature, wherein the second predetermined temperature is lower than the first predetermined temperature, and refurbishing the nanostructured CHA with wet C02 gas for a second predetermined time period. The present invention also provides a sintered nanostructured carbonated hydroxyapatite (CHA). The present invention further provides a system for producing sintered nanostructured carbonated hydroxyapatite (CHA).