title: Preparation and characterization of calcium phosphate biomaterials.
abstract: Calcium phosphate cement (CPC) samples have been prepared with a mixture of monocalciumphosphate monohydrate (MCPM) and calcium carbonate (CC) powders, in stechiometric moles ratio 1:2.5 to obtain a Ca/P ratio of about 1.67 typical of hydroxyapatite (HAp), with or without addition of HAp. All specimens are incubated at 30 degrees C in a steam saturated air environment for 3, 6 and 15 days respectively, afterwards dried and stored under nitrogen. The calcium phosphate samples have been characterized by X-ray diffraction (XRD), Vickers hardness test (HV), diametral compression (d.c.), strength compression, and porosity evaluation. MCPM/CC mixture has a 30% HAp final concentration and is characterized by higher porosity (amount 78%) and mechanical properties useful as filler in bone segments without high mechanical stress.
authors.affiliation: Department of Cell Biology, University of Calabria, P. Bucci 4c, Rende, CS 87030, Italy.
authors.forename: A R
authors.initials: AR
authors.lastname: Calafiori
authors.forename: G
authors.initials: G
authors.lastname: Di Marco
authors.forename: G
authors.initials: G
authors.lastname: Martino
authors.forename: M
authors.initials: M
authors.lastname: Marotta
mesh_terms: D001672:Biocompatible Materials / Q000138:chemical synthesis*; D001843:Bone Cements; D018786:Bone Substitutes; D002119:Calcium Carbonate / Q000737:chemistry; D002130:Calcium Phosphates / Q000138:chemical synthesis* / Q000737:chemistry; D017886:Durapatite / Q000737:chemistry; D008420:Manufactured Materials / Q000032:analysis; D011208:Powders / Q000138:chemical synthesis / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D001672:Biocompatible Materials; D001843:Bone Cements; D018786:Bone Substitutes; D002130:Calcium Phosphates; D011208:Powders; D017886:Durapatite; C020243:calcium phosphate; D002119:Calcium Carbonate