Tungsten rhenium compounds and composites and methods for forming the same
AssigneeSmith International, Inc.
InventorsQingyuan Liu, Russell J. Steel, Scott Packer, Scott Horman
Life of this patent
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Abstract
The present invention relates to tungsten rhenium compounds and composites and to methods of forming the same. Tungsten and rhenium powders are mixed together and sintered at high temperature and high pressure to form a unique compound. An ultra hard material may also be added. The tungsten, rhenium, and ultra hard material are mixed together and then sintered at high temperature and high pressure.
Claims26
A method of forming a material, comprising:
- providing tungsten and rhenium;
- and
- sintering the tungsten and rhenium at high temperature and high pressure.
A high pressure high temperature sintered binder comprising:
- tungsten, wherein the tungsten is within the range of approximately 50% to approximately 99% of the volume of the binder;
- and
- rhenium, wherein the rhenium is within the range of approximately 1% to approximately 50% of the volume of the binder.
A polycrystalline composite material comprising:
- tungsten;
- rhenium;
- and
- a polycrystalline ultra hard material bonded to at least one of the tungsten or the rhenium.
A polycrystalline composite material comprising:
- a binder comprising,
- tungsten, wherein the tungsten is within the range of approximately 50% to approximately 99% of the volume of the binder, and
- molybdenum, wherein the molybdenum is within the range of approximately 1% to approximately 50% of the volume of the binder;
- and
- a polcrystalline ultra hard material.
A polycrystalline composite material comprising:
- a binder comprising,
- tungsten, wherein the tungsten is within the range of approximately 50% to approximately 99% of the volume of the binder, and
- lanthanum, wherein the lanthanum is within the range of approximately 1% to approximately 50% of the volume of the binder;
- and
- an ultra hard material.
A method of forming a polycrystalline composite material, comprising:
- providing a binder comprising,
- tungsten, wherein the tungsten is within the range of approximately 50% to approximately 99% of the volume of the binder, and
- molybdenum, wherein the molybdenum is within the range of approximately 1% to approximately 50% of the volume of the binder;
- providing an ultra hard material;
- and
- sintering the ultra hard material with the binder at a high temperature and high pressure to form a polycrystalline composite material.
A method of forming a polycrystalline composite material, comprising:
- providing a binder comprising,
- tungsten, wherein the tungsten is within the range of approximately 50% to approximately 99% of the volume of the binder, and
- lanthanum, wherein the lanthanum is within the range of approximately 1% to approximately 50% of the volume of the binder,
- providing an ultra hard material;
- and
- sintering the ultra hard material with the binder at a high temperature and high pressure to form a polycrystalline composite material.
Dependencies are inferred from the claim text.