Fabrication of highly porous titanium (Ti) scaffolds with two interlaced periodic pores

초록

This paper reports a novel type of porous titanium (Ti) scaffolds with two interlaced periodic pores that were produced by coating the surfaces of a dual-channeled hydroxyapatite (HA) scaffold, as a supporting framework. with a titanium hydride (TiH2) slurry followed by heat-treatment at 1200 degrees C for 3 h in a Vacuum to convert TiH2 to Ti metal. This method allowed the porous Ti scaffolds to mimic the original pore structure of the dual-channeled HA scaffold in a tightly controlled manner. It was observed that the Ti layer was strongly adhered to the HA layer. owing to the diffusion of P ions into the Ti layer. The fabricated sample showed a high compressive strength of 6.0 +/- 0.77 MPa and a porosity of 78 vol.% due to its unique pore structure. as well as perfect interconnections between the pores. (C) 2009 Elsevier B.V. All rights reserved.

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