US Synthetic Corporation

Jason Dean Blackburn

Cody William Knuteson

Brandon Paul Linford

Daniel Call Mortensen

Steven Swan

Mark Pehrson Chapman

Embodiments relate to polycrystalline diamond compacts ('PDCs') including a polycrystalline diamond (“PCD”) table having a diamond grain size distribution selected for improving performance and/or leachability. In an embodiment, a PDC includes a PCD table bonded to a substrate. The PCD table includes a plurality of diamond grains exhibiting diamond-to-diamond bonding therebetween. Other embodiments are directed to methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Polycrystalline diamond compacts and applications therefor

Embodiments relate to polycrystalline diamond compacts ('PDCs') including a polycrystalline diamond ('PCD') table having a diamond grain size distribution selected for improving performance and/or leachability. In an embodiment, a PDC includes a PCD table bonded to a substrate. The PCD table includes a plurality of diamond grains exhibiting diamond-to-diamond bonding therebetween. The plurality of diamond grains includes a first amount being about 5 weight % to about 65 weight % of the plurality of diamond grains and a second amount being about 18 weight % to about 95 weight % of the plurality of diamond grains. The first amount exhibits a first average grain size of about 0.5 &#x3bc;m to about 30 &#x3bc;m. The second amount exhibits a second average grain size that is greater than the first average grain size and is about 10 &#x3bc;m to about 65 &#x3bc;m. Other embodiments are directed to methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Embodiments of the invention relate to liquid metal embrittlement ('LME')-resistant superabrasive compacts, methods of making the same, and drill bits incorporating the same. The LME-resistant superabrasive compacts include a braze-resistant region on one or more portions of a substrate expected to be under residual tensile stress and susceptible to LME during brazing.

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Orem, UT, United States of America

Jason Dean Blackburn