Performing a Calcium-Phosphate Layer on Porous NiTi Alloy for Using in Orthopedic Applications

performing a calcium-phosphate layer on porous niti alloy for using in orthopedic applications

porous niti alloys has a series of unique properties such as shape memory effect, superelastic behavior and energy absorbability that make them usable in a wide range of medical and industrial appliances. but the more probability of ni release from a porous niti compare to the nonporous one has restricted it’s uses in implants. in the present research for resolving the problem, performing a cal...

Porous NiTi alloy prepared from elemental powder sintering

An elemental powder sintering (EPS) technique has been developed for the synthesis of porous NiTi alloy, in which Ni and Ti powders are used as the reactants and TiH2 powder is added as a pore-forming agent and active agent. Effects of various experimental parameters (sintering temperature, sintering time, and TiH2 content) on the porosity, pore size and pore distribution as well as phase compo...

Characterization of Biomimetic Calcium Phosphate Deposited on Chitosan for Orthopedic Implant Applications

+Chesnutt, BC; +Yuan YL; *Yang Y; *Ong JL; +Haggard WO; +Bumgardner JD Joint Program in Biomedical Engineering,+University of Memphis and *University of Tennessee-Memphis, Memphis, TN; [email protected] Introduction Chitosan is a deacetylated form of chitin, a natural polysaccharide found mainly in the exoskeletons of crustaceans. Chitosan is an attractive biomaterial because it is very biocom...

NiTi Shape Memory Alloys, Promising Materials in Orthopedic Applications

Alternative technique for calcium phosphate coating on titanium alloy implants

As an alternative technique for calcium phosphate coating on titanium alloys, we propose to functionalize the metal surface with anionic bath containing chlorides of palladium or silver as activators. This new deposition route has several advantages such as controlled conditions, applicability to complex shapes, no adverse effect of heating, and cost effectiveness. A mixture of hydroxyapatite a...