Preparation of Bioactive Tantalum Metal via Anodic Oxidation Treatment
After the Tantalum metal was subjected to the anodic oxidation at suitable voltage in 2M H2SO4 solution, tantalum oxide with rhombic or amorphous structure formed on the metal surface. The Oxide showed apatite formation ability in simulative body fluid at 6d. It meant the anodic oxidation treatment ia an effective method to accelerate the bioactivity of tantalum metal.
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
B. C. Yang et al., "Preparation of Bioactive Tantalum Metal via Anodic Oxidation Treatment", Key Engineering Materials, Vols. 330-332, pp. 637-640, 2007