A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POLYCRYSTALLINE DIAMOND COMPACT
The present invention relates to a polycrystalline diamond compact. A method for manufacturing a polycrystalline diamond compact includes: assembling a first diamond powder on a carbide substrate; preliminarily sintering the assembled carbide substrate and the first diamond powder on the carbide substrate to form a first polycrystalline diamond layer on the carbide substrate; assembling a second diamond powder having a particle diameter in the range of 0.1 μm to 5 μm on the first polycrystalline diamond layer; and sintering the assembled carbide substrate, the first polycrystalline diamond layer, and the second diamond powder on the first polycrystalline diamond layer to form a second polycrystalline diamond layer on the first polycrystalline diamond layer. The content of a metal binder (catalyst) in a portion which is used in bedrock cutting during actual drilling, that is, a superficial portion of the polycrystalline diamond layer, is controlled to be minimized.
POLYCRYSTALLINE DIAMOND COMPACT
The present invention relates to a polycrystalline diamond compact. A method for manufacturing a polycrystalline diamond compact includes: assembling a first diamond powder on a carbide substrate; preliminarily sintering the assembled carbide substrate and the first diamond powder on the carbide substrate to form a first polycrystalline diamond layer on the carbide substrate; assembling a second diamond powder having a particle diameter in the range of 0.1 μm to 5 μm on the first polycrystalline diamond layer; and sintering the assembled carbide substrate, the first polycrystalline diamond layer, and the second diamond powder on the first polycrystalline diamond layer to form a second polycrystalline diamond layer on the first polycrystalline diamond layer. The content of a metal binder (catalyst) in a portion which is used in bedrock cutting during actual drilling, that is, a superficial portion of the polycrystalline diamond layer, is controlled to be minimized.
POLYCRYSTALLINE DIAMOND COMPACT
JUN HUI SOO (author) / PARK HEE SUB (author)
2016-12-01
Patent
Electronic Resource
English
POLYCRYSTALLINE DIAMOND COMPACT AND METHOD OF MAKING A POLYCRYSTALLINE DIAMOND COMPACT
| European Patent Office | 2016