Fabrication and compressive properties of directional porous titanium scaffold by freeze casting TiH2 powders

•Directional lamellar Ti porous material has been prepared with the TiH2 to overcome oxidation and sedimentation .•Reducing the freeze temperature or increasing the solid content, the porosity , wall and pore thickness changed.•Directional lamellar structure provides a strong mechanical (60–286 MPa) than that at same porosity with other process.•Increase of wall thickness and volume fraction, decrease of micro-pores probably induce a better mechanical property.