Premium
Porous Titanium by Electro‐chemical Dissolution of Steel Space‐holders
Author(s) -
Kwok P. J.,
Oppenheimer S. M.,
Dunand D. C.
Publication year - 2008
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800072
Subject(s) - materials science , titanium , dissolution , porosity , metallurgy , diffusion , volume fraction , electrochemistry , characterisation of pore space in soil , titanio , diffusion barrier , composite material , chemical engineering , electrode , transition metal , biochemistry , chemistry , physics , layer (electronics) , engineering , thermodynamics , catalysis
Titanium powders are densified together with steel spheres, wires or wire meshes which are subsequently removed by electrochemical dissolution, creating porosity that replicates the steel space‐holders. Interdiffusion between steel and titanium is prevented by formation of a TiC diffusion barrier. Without this barrier, a Fe‐containing titanium zone adjacent to the space‐holder is formed which can be removed electrochemically, thus increasing the size and volume fraction of the pores.