| 摘要 |
A preparation method for a medical porous tantalum material, characterized in that: mixing tantalum powder and an aqueous solution of polyvinyl alcohol into a slurry, injecting the slurry into an organic foamed body by using pressuring by vibration, then drying, degreasing, sintering, cooling, and performing a heating process to produce the medical porous tantalum material, the mass concentration of the aqueous solution of polyvinyl alcohol being 2% to 8%, and the vibration frequency being 20 to 80 times/minute. The porous tantalum prepared using the present invention is applicable as a medical implant material for weight-bearing bone tissue replacement, and ensures both biocompatibility and mechanic properties. |
