| abstract |
The invention discloses a preparation method of a medical porous titanium or titanium alloy material coated with a tantalum coating. After the skeleton is corroded, it is cleaned and dried, and then completely embedded in the ultra-fine tantalum powder in the metal sheath. After vacuum sealing, it is subjected to low-temperature diffusion and sintering. Finally, the powder is removed and the powder is removed to obtain a medical porous titanium coated with tantalum. or titanium alloy material. In the invention, tantalum is coated on the surface of the porous titanium skeleton or the porous titanium alloy skeleton through powder embedding and low-temperature diffusion sintering to form metallurgical bonding, which greatly improves the bonding force between the tantalum and the surface of the porous titanium skeleton or the porous titanium alloy skeleton, and solves the problem of solving the problem. The problem of poor bonding force between the tantalum coating and the substrate overcomes the shortcomings of the existing preparation methods of high cost and complicated procedures. |