Sintered nanocrystalline alloys
AssigneeMassachusetts Institute of Technology
InventorsChristopher A. Schuh, Mansoo Park
Life of this patent
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Abstract
Provided in one embodiment is a method, comprising: sintering a plurality of nanocrystalline particulates to form a nanocrystalline alloy, wherein at least some of the nanocrystalline particulates may include a non-equilibrium phase comprising a first metal material and a second metal material, and the first metal material may be soluble in the second metal material. The sintered nanocrystalline alloy may comprise a bulk nanocrystalline alloy.
Claims24
A sintered nanocrystalline alloy, comprising:
- metallic tungsten (W) present in an amount of at least about 60 at %;
- and
- at least one of the following elements present in an amount greater than or equal to 1 at %:
- Pd, Pt, and V;
- wherein the nanocrystalline alloy has a relative density of at least about 90%, and the nanocrystalline alloy has a grain size of smaller than 1000 nm.
A bulk nanocrystalline alloy, comprising:
- metallic tungsten (W) present in an amount of at least about 60 at %;
- and
- at least one of the following elements present in an amount greater than or equal to 1 at %:
- Pd, Pt, and V;
- wherein the bulk nanocrystalline alloy has a grain size of smaller than 1000 nm.
A sintered nanocrystalline alloy, comprising:
- metallic tungsten (W) present in an amount of at least about 60 at %;
- and
- Sc present in an amount greater than or equal to 5 at %;
- wherein the nanocrystalline alloy has a relative density of at least about 90%, and the nanocrystalline alloy has a grain size of smaller than 1000 nm.
A bulk nanocrystalline alloy, comprising:
- metallic tungsten (W) present in an amount of at least about 60 at %;
- and
- Sc present in an amount greater than or equal to 5 at %;
- wherein the bulk nanocrystalline alloy has a grain size of smaller than 1000 nm.
Dependencies are inferred from the claim text.