| 简介 |
The disclosure provides a super-abrasive body including a thermally stable polycrystalline diamond (TSP) body having a top region and an enhanced attachment region, wherein the enhanced attachment region includes tungsten carbide particles having a volume of at least 30% of the total volume of the enhanced attachment region. The disclosure further provides a super-abrasive element having the super-abrasive body attached to a substrate via an attachment material located in or around the tungsten carbide particles. The disclosure additionally provides earth-boring drill bits with such a super-abrasive element. Further, the disclosure provides methods of forming such super-abrasive bodies and elements by forming a PCD body with particle of tungsten carbide in an enhanced attachment region, then leaching the PCD body and attaching it to a substrate via an attachment material in or around the tungsten carbide particles. |
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