Preparation for femur prosthesis of ceramic-metal combination artificial hip joint

摘要

Al_2O_3 material was synthesized by using high purity alumina micro-powder and Mg-Zr-Y composite additives at temperature of 1600 ℃ , which had good mechanics property of 416 MPa bending strength and 5.46 MPa · m~(1/2) fracture toughness. Femur head prosthesis of hip joint was prepared by using this material; Ti alloy femur handle was sprayed bioactive hydroxyapatite (HA) by plasma on surface, which improves the chemistry stability and biocompatibility of Ti alloy; ceramic-metal combination artificial hip joint femur prosthesis was made by combining Al_2O_3 femur head with Ti alloy femur handle, so the manufacturing process is improved and the property and application flexibility are advanced.