%0 Journal Article
%T FabricationandCharacterizationofHierarchicallyNanostructuredPorousCarbonatedHydroxyapatiteCoatings
%A 吕君英
%A 郭亚平
%J 过程工程学报
%D 2012
%X Hierarchicallynanostructuredporouscarbonatedhydroxyapatitecoatings(HNPCs)onTi6Al4Vsubstratewerefabricatedbyatwo-stageapplicationroutefabricationofnacrecoatings(NCs)onTi6Al4Vsubstratebyelectrophoretictechnique,andconversionofNCstoHNPCsinaphosphatebuffersolution(PBS)bymicrowaveirradiationmethod.TheirsampleswerecharacterizedbyusingXRD,FT-IR,SEM,TEM,andN2adsorption-desorptionisotherms.TheresultsshowthatthemicrowaveirradiationtechniqueimprovesobviouslytheconversionrateofNCstoHNPCsascomparedwithconventionalmethod.AftersoakingtheNCsinthePBS,calciumionsarereleasedfromthenacreparticlesandreactwithphosphateionstoformcarbonatedhydroxyapatitenanoparticles.Thesenanoparticlesaggregatetoformtheplate-likecarbonatedapatite.Themesoporeswithasizeofabout3.9nmandmacroporeswiththediametersof1~4mmexistwithinandamongthecarbonatedapatiteplates,respectively.SimulatedbodyfluidimmersiontestsrevealthattheHNPCshaveagoodinvitrobioactivity.
%K carbonatedhydroxyapatite
%K coating
%K porousstructure
%K dissolution-precipitationreaction
%U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=16631