Processing titanium foams using tapioca starch as a space holder

Titanium foams were fabricated in this study using starch. The mechanical properties and pore structures were investigated by SEM. The porosities of the fabricated titanium foams were 64-79%, and the sizes of open cellular pores were 100-300 μm. The observed yield strength of the foams was in the range of 23-41 MPa, and the Young's moduli were 1.6-3.7 GPa. Finally, the XRD results of titanium before and after sintering were studied to ensure that the foams produced featured no contamination.