This study produced porous titanium by partial sintering using the spark plasma sintering (SPS) processing method. The sintering temperature used varied between 600 and 800 °C. In addition, porous titanium prepared by conventional powder metallurgy under Argon atmosphere was studied for comparison. The results showed that porous titanium had a porosity value ranging from 4.2 to 27.5%. A sintering temperature of 600–800 °C in the SPS would reduce the elastic modulus of titanium (13.6–24.4 GPa) to fit the elastic modulus of human bone (4–30 GPa). However, the in vitro studies showed that the porous titanium prepared by SPS at 600 °C, despite having preferred porosity, would have less cell viability compared to the porous titanium prepared by conventional powder metallurgy. Therefore, the oxidation and the densification process have more effect on biocompatibility since they correlate to the dissolution of titanium ions into the cell.

本研究使用放电等离子烧结 (SPS) 加工方法通过部分烧结生产多孔钛。使用的烧结温度在 600 和 800 °C 之间变化。此外，还研究了在氩气氛下通过常规粉末冶金制备的多孔钛，以进行比较。结果表明，多孔钛的孔隙率值为4.2～27.5%。SPS 中 600-800 °C 的烧结温度会降低钛的弹性模量 (13.6-24.4 GPa) 以适应人体骨骼的弹性模量 (4-30 GPa)。然而，体外研究表明，与传统粉末冶金制备的多孔钛相比，尽管具有优选的孔隙率，但通过 SPS 在 600 °C 制备的多孔钛的细胞活力较低。所以，