title: A novel hydrothermal process to produce hydroxyapatite powders.
abstract: A novel hydrothermal process has been developed various hydroxyapatite(HA) powder. The HA powder was investigated in different calcination temperatures over the range of 200 degrees C-800 degrees C. TG/DTA and XRD analysis revealed that at temperatures of 700-800 degrees C the decomposition processes and phase changes took place. It is due to the appearance of TCP phase substituting the HA phase. FESEM observation showed that the produced hydroxyapatite powder was extraordinarily fine with nanosize primary particles and almost evenly spherical in shaped. Its high purity proved that the powder fulfills medical requirement.
authors.affiliation: Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University Malaysia, PO Box 10, 50728 Kuala Lumpur, Malaysia.
authors.forename: I
authors.initials: I
authors.lastname: Sopyan
authors.forename: A
authors.initials: A
authors.lastname: Rosli
authors.forename: M F
authors.initials: MF
authors.lastname: Raihana
mesh_terms: D018786:Bone Substitutes / Q000737:chemistry; D020099:Coated Materials, Biocompatible / Q000737:chemistry; D003460:Crystallization; D017886:Durapatite / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D010865:Pilot Projects; D011208:Powders / Q000737:chemistry; D013696:Temperature
chemical_list: D018786:Bone Substitutes; D020099:Coated Materials, Biocompatible; D011208:Powders; D017886:Durapatite