Porous titanium (Ti) scaffolds by freezing TiH2/camphene slurries

Abstract Porous titanium (Ti) scaffolds with interconnected pores were fabricated by freezing titanium hydride (TiH 2 )/camphene slurries at 33 °C for 24 h, followed by freeze-drying and subsequent heat-treatment at 1300 °C for 2 h in vacuum. All of the fabricated samples revealed highly porous structures having large pores up to 100 μm in size surrounded by Ti metal walls without any secondary phases. When the initial TiH 2 content was increased from 15 to 25 vol.%, the porosity was decreased from 63 to 49%, while the compressive strength was significantly improved from 81 to 253 MPa.