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AssigneePulse Technologies, Inc.
InventorsAndrew E. Fisk, Anatolii Demchyshyn, Mykola Kuzmenko, Sergei Firstov, Leonid Kulak
Estimating the term…
A titanium based, ceramic reinforced alloy ingot for use in producing medical implants. An ingot is formed from an alloy having comprising from about 5 to about 35 wt. % niobium, from about 0.5 to about 3.5 wt. % silicon, and from about 61.5 to about 94.5 wt. % of titanium. The alloy has a hexagonal crystal lattice α phase of from about 20 vol % to about 70 vol %, and a cubic body centered β crystal lattice phase of from about 30 vol. % to about 80 vol. %. The ingot has an ultimate tensile strength of about 940 MPa or more, and a Young's modulus of about 150 GPa or less. A molten substantially uniform admixture of a niobium, silicon, and titanium alloy is formed, cast into a shape, and cooled into an ingot. The ingot may then be formed into a medical implant and optionally annealed.
An ingot comprising an alloy, the alloy comprising from about 5 wt. % to about 35 wt. % of niobium, from about 0.5 wt. % to about 3.5 wt. % of silicon, and from about 61.5 wt. % to about 94.5 wt. % of titanium, the alloy having a hexagonal crystal lattice α phase of from about 20 vol % to about 70 vol %, and a cubic body centered β crystal lattice phase of from about 30 vol. % to about 80 vol. %, the ingot having an ultimate tensile strength of about 1,000 MPa or more, and a Young's modulus of about 150 GPa or less.
A method of forming an ingot which comprises forming a molten alloy comprising a substantially uniform admixture of from about 5 wt. % to about 35 wt. % of niobium, from about 0.5 wt. % to about 3.5 wt. % of silicon, and from about 61.5 wt. % to about 94.5 wt. % of titanium, casting the molten alloy into a shape, and then cooling the shape into an ingot, the alloy having a hexagonal crystal lattice α phase of from about 20 vol % to about 70 vol %, and a cubic body centered β crystal lattice phase of from about 30 vol. % to about 80 vol. %, the ingot having an ultimate tensile strength of about 940 MPa or more, and a Young's modulus of about 150 GPa or less.
Dependencies are inferred from the claim text.