1 23 Journal of Materials Science ISSN 0022-2461 Volume 55 Number 34 J Mater Sci (2020) 55:16419-16431 DOI 10.1007/s10853-020-05166-5 Fabrication and characterization of highly porous Ti6Al4V/xTa composites for orthopedic applications P. Garnica, R. Macías, J. Chávez, D. Bouvard, O. Jiménez, L. Olmos & D. Arteaga