The Effect of Pressure and Pore-Forming Agent on the Mechanical Properties of Porous Titanium
Porous titanium compacts were fabricated by powder metallurgy using cold isostatic press with and without pore forming agents. Their microstructure and mechanical properties were investigated in this study. These alloy powders were sintered under 1300°C in vacuum of 10-3 Pa for 2h, followed by furnace cooling. Young’s modulus of sintered Ti could equal that of human’s dense bones. It was found that the strength of porous Ti enhanced by increasing the pressure or decreasing the amounts of pore forming agents. We prepared a porous pure Ti with 30wt.% NH4HCO3 as pore forming agents whose modulus was near to the human cortical bone, as compared in the range from 10 to 30GPa of Young’s modulus for human bone.
P. Zhang et al., "The Effect of Pressure and Pore-Forming Agent on the Mechanical Properties of Porous Titanium", Advanced Materials Research, Vols. 217-218, pp. 1191-1196, 2011