Methods of manufacturing a polycrystalline diamond element using SP2-carbon-containing particles
View Patent ↗Superabrasive elements, methods of fabricating such elements, and applications utilizing such elements. In one embodiment, a superabrasive element includes a mass of polycrystalline diamond including ultra-dispersed diamond grain structures present in an amount greater than zero weight percent and less than about 75 weight percent of the mass of polycrystalline diamond. Various structures and apparatuses that utilize the superabrasive elements, such as polycrystalline diamond compacts (PDCs) and drill bits are disclosed. Methods of manufacture are also disclosed.
1. A method of fabricating a polycrystalline diamond element, comprising:
mixing a first type of superabrasive particles comprised of ultra-dispersed diamond particles and a second type of superabrasive particles comprised of diamond particles to form a mixture, the ultra-dispersed diamond particles being present in the mixture in an amount greater than zero to about 5 weight percent of the mixture; and
sintering the mixture in the presence of a catalyst material to form the polycrystalline diamond element.
2. A method of fabricating a polycrystalline diamond element, comprising:
mixing a plurality of sp 2 -carbon-containing particles and a plurality of diamond particles to form a mixture, wherein the plurality of sp 2 -carbon-containing particles are present in the mixture in an amount greater than zero to about 5 weight percent; and
sintering the mixture in the presence of a catalyst material to form the polycrystalline diamond element.
3. The method of claim 2 wherein at least a portion of the plurality of sp 2 -carbon-containing particles comprise a plurality of nanocrystalline diamond particles.
4. The method of claim 2 wherein at least a portion of the plurality of sp 2 -carbon-containing particles comprise a plurality of ultra-dispersed diamond particles.
5. The method of claim 2 wherein at least a portion of the plurality of sp 2 -carbon-containing particles comprise carbon onion.
6. The method of claim 2 wherein at least a portion of the plurality of sp 2 -carbon-containing particles comprise amorphous carbon.
7. The method of claim 2 , further comprising:
disposing the mixture adjacent a substrate including the catalyst material therein; and
wherein sintering the mixture in the presence of a catalyst material to form the polycrystalline diamond element comprises infiltrating the mixture with the catalyst material from the substrate.
8. The method of claim 2 , further comprising:
disposing the mixture adjacent a substrate including the catalyst material therein; and
wherein sintering the mixture in the presence of a catalyst material to form the polycrystalline diamond element comprises forming the polycrystalline diamond element as table on the substrate.
9. The method of claim 8 wherein the substrate comprises cemented tungsten carbide.
10. The method of claim 2 wherein the amount of the plurality of sp 2 -carbon-containing particles is about 0.1 weight percent to about 0.5 weight percent of the mixture.
11. The method of claim 2 wherein the amount of the sp 2 -carbon-containing particles is greater than zero weight percent to about 1 weight percent of the mixture.
12. The method of claim 2 wherein the amount of the plurality of sp 2 -carbon-containing particles is greater than zero weight percent to about 2 weight percent of the mixture.
13. The method of claim 2 , further comprising removing a portion of the catalyst material from the polycrystalline diamond element.
14. The method of claim 13 wherein removing a portion of the catalyst material from the polycrystalline diamond element comprises leaching the catalyst material from the polycrystalline diamond element.
15. The method of claim 2 wherein the catalyst material comprises cobalt, iron, nickel, or alloys thereof.
16. A method of fabricating a polycrystalline diamond element, comprising:
mixing a plurality of nanocrystalline diamond particles and a plurality of diamond particles to form a mixture, wherein the plurality of nano crystalline diamond particles are present in the mixture in an amount greater than zero to about 5 weight percent; and
sintering the mixture in the presence of a catalyst material to form the polycrystalline diamond element.
17. The method of claim 16 wherein the amount of the plurality of nanocrystalline diamond particles is about 0.1 weight percent to about 0.5 weight percent of the mixture.
18. The method of claim 16 wherein the amount of the plurality of nanocrystalline diamond particles is greater than zero weight percent to about 1 weight percent of the mixture.
19. The method of claim 16 wherein the amount of the plurality of nanocrystalline diamond particles is greater than zero weight percent to about 2 weight percent of the mixture.
20. The method of claim 16 wherein at least a portion of the plurality of nanocrystalline diamond particles comprise a plurality of ultra-dispersed diamond particles.
21. The method of claim 16 wherein at least a portion of the plurality of nanocrystalline diamond particles comprise a plurality of sp 2 -carbon-containing particles.
22. The method of claim 16 , further comprising removing a portion of the catalyst material from the polycrystalline diamond element.
23. The method of claim 22 wherein removing a portion of the catalyst material from the polycrystalline diamond element comprises leaching the catalyst material from the polycrystalline diamond element.
24. The method of claim 16 wherein the catalyst material comprises cobalt, iron, nickel, or alloys thereof.