FHA BIOCERAMIC COMPOSITE MATERIALS ENHANCED BY ZrO_2
Ruan Jianmin;Huang Baiyun(Powder Metallurgy of Research Institute, Central SouthUniversity of Technology, Changsha, 410083,China )
Experiments for investigating the problem to improve the mechanical properties of FHA [Ca(10) (PO4)6F(OH)] biomaterial have been presented in this paper. ZrO2 micro-particle, as strengthening phase, is added into FHA matrix material to make a composite biomaterial. Various mechanical properties were tested. Distribution be haviour of ZrO2 particle in sintered material and phase structure ' changes of material at elevated temperature were investigated by means of X-ray and SEM. Some biologic experiments were also carried out on animals to estimate the biological function of the corn posite material.