The composite metal-based porous metal oxide/hydroxyapatite artificial bone consists of metal base, metal oxide ceramic layer and hydroxyapatite layer superposed together. The preparation process includes successively cleaning the surface of the metal base, micro arc oxidation to form the ceramic layer and sol-gel painting to form the hydroxyapatite film. The artificial bone with two-layer structure of metal oxide ceramic layer and hydroxyapatite layer on the metal base has excellent biocompatibility and mechanical performance. The porous structure of surface film is favorable to combination with tissue, and the artificial bone may be used as bone substitute with great load, such as for thighbone and hip joint. The simple preparation process is suitable for both lab making and industrial production. |