Resources Contact Us Home
Polycrystalline diamond compacts, methods of fabricating same, and applications using same

Image Number 3 for United States Patent #7842111.

Embodiments of the present invention relate to PDCs including a PCD table having an exterior cutting region that exhibits enhanced thermal stability. In one embodiment, a method comprises forming an assembly including a first region having non-diamond carbon material and a second region having a plurality of diamond particles. The method comprises subjecting the assembly to heat and pressure sufficient to form the PDC. In another embodiment, a PDC comprises a substrate and a PCD table bonded to the substrate. The PCD table comprises an exterior cutting region including a plurality of elongated diamond grains that are generally randomly oriented. The PCD table comprises a main region positioned between the substrate and exterior cutting region, and including a plurality of bonded diamond grains. In another embodiment, the first region may include coarse-sized diamond particles instead of non-diamond carbon material.

  Recently Added Patents
Method and apparatus for encoding anchor frame by encoding features using layers
Caching and deduplication of data blocks in cache memory
Measurement of geometric quantities intrinsic to an anatomical system
ECG rhythm advisory method
Arrangement and method for cross-monitoring of data
Method and arrangement for a low radar cross section antenna
Optical packet switching system and optical packet transmitter device
  Randomly Featured Patents
Phase-coupled clock signal generator and character generator comprising such a phase-coupled clock signal generator
ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts
Magnetic nonvolatile memory cell and magnetic random access memory using the same
Method and apparatus for amplifying input signals in one of multiple modes of resolution
Spiral meat slicer with improved reciprocating knife structure
Breath actuated dry powder inhaler and tape dose strip
Business process management/workflow automation software
Method of forming a fibrous mat
Device for sensing internal temperature of meat in rotisserie
Ignition device of internal combustion engine