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
Portable identity rating
Delivery method for internet protocol television (IPTV)
Display panel or screen with graphical user interface
Subcutaneous defibrillator implantation
Display apparatus and control method of the same
System and method for threshold billing for returned goods
Integrated speech intelligibility enhancement system and acoustic echo canceller
  Randomly Featured Patents
Foldable multi-position automotive vehicle seat
Method of fabricating tensile strained layers and compressive strain layers for a CMOS device
Punch apparatus with positive slug removal
Narrow bandwidth signal delivery system
Toy for educating about medical treatments
D.C. Power reversing switch
Calibrachoa plant named `Wescastpi`
System, method, and appliances for applying hair treatments
Motor vehicle
Laundry bin