Cook Medical Technologies LLC

University of Limerick

Abbasi A Gandhi

James Butler

James M Carlson

Peter Tiernan

Syed A M Tofail

Lisa O'Donoghue

Garry Warren

Tofail Ansar Md Syed

A mixture of powders for preparing a sintered nickel-titanium-rare earth (Ni&#x2014;Ti&#x2014;RE) alloy includes Ni&#x2014;Ti alloy powders comprising from about 55 wt. % Ni to about 61 wt. % Ni and from about 39 wt. % Ti to about 45 wt. % Ti, and RE alloy powders comprising a RE element.

Mixture of powders for preparing a sintered nickel-titanium-rare earth metal (Ni-Ti-RE) alloy

A nickel-titanium-rare earth (Ni&#x2014;Ti-RE) alloy comprises nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, boron at a concentration of up to about 0.1 at. %, with the balance of the alloy being titanium. In addition to enhanced radiopacity compared to binary Ni&#x2014;Ti alloys and improved workability, the Ni&#x2014;Ti-RE alloy preferably exhibits superelastic behavior. A method of processing a Ni&#x2014;Ti-RE alloy includes providing a nickel-titanium-rare earth alloy comprising nickel at a concentration of from about 35 at. % to about 65 at. %, a rare earth element at a concentration of from about 1.5 at. % to about 15 at. %, the balance being titanium; heating the alloy in a homogenization temperature range below a critical temperature; and forming spheroids of a rare earth-rich second phase in the alloy while in the homogenization temperature range.

Nickel-titanium-rare earth alloy and method of processing the alloy

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Ahmedabad, India

Abbasi A Gandhi