Investigation on Mechanical Properties and Microstructure of Hydroxyapatite-SiC_w Composite Bioceramics  

作　　者：牛宗伟 

机构地区：[1]School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2005年第B12期181-183,共3页武汉理工大学学报（材料科学英文版）

基　　金：MechanicalPropertiesandMiyapatiteSiCwCompositeBioce

摘　　要：Hydroxyapatite-SiCw composite micropowder was synthesized using in-situ composite method, and hydroxyapatite- SiCw composite bioceramics with different content of SiCw were produced by hot pressing sintering method. The microstructures of the materials were analyzed by SEM, and the relative density, bending strength and fracture toughness of the materials were tested. The results show that the mechanical properties of composite material are best when the whisker content is 20- 23.7% . The mechanical properties of the material are the best when the tensile stress acted on the composite material is parallel with the hot pressing plane, and they are the worst when the tensile stress acted on the composite material is normal to the hot pressing plane.Hydroxyapatite-SiCw composite micropowder was synthesized using in-situ composite method, and hydroxyapatite- SiCw composite bioceramics with different content of SiCw were produced by hot pressing sintering method. The microstructures of the materials were analyzed by SEM, and the relative density, bending strength and fracture toughness of the materials were tested. The results show that the mechanical properties of composite material are best when the whisker content is 20- 23.7% . The mechanical properties of the material are the best when the tensile stress acted on the composite material is parallel with the hot pressing plane, and they are the worst when the tensile stress acted on the composite material is normal to the hot pressing plane.

关 键 词：HYDROXYAPATITE silicon carbide whisker mechanical properties MICROSTRUCTURE 

分 类 号：TB332[一般工业技术—材料科学与工程]