Abstract
For bone implant NiTi foams with a structure (69.3-69.9% porosity and 150-400μm pore size) were fabricated by CIP and sintering with NaCl space-holders. A maximum compressive strength of 30.90Mpa and a ultimate compressive ductility of 33.5% were obtained. Moreover, 81-89% of the strain recovered after inducing shape-memory effect. In particular, the pores completely replicate the shape and size of the NaCl powders. It provides a powerful tool to tailor the pore structure and mechanical properties of NiTi foams to match the demand of bone implant. Simple processing route and low cost allow these foams to be a suitable candidate for bone implant applications.
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