07493973 is referenced by 94 patents and cites 138 patents.

PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at high pressure/high temperature conditions. The diamond grains have an average particle size of about 0.03 mm or greater. At least a portion of the diamond body has a high diamond volume content of greater than about 93 percent by volume. The entire diamond body can comprise high volume content diamond or a region of the diamond body can comprise the high volume content diamond. The diamond body includes a working surface, a first region substantially free of the catalyst material, and a second region that includes the catalyst material. At least a portion of the first region extends from the working surface to depth of from about 0.01 to about 0.1 mm.

Title
Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance
Application Number
11/140615
Publication Number
7493973 (B2)
Application Date
May 26, 2005
Publication Date
February 24, 2009
Inventor
Michael Janssen
Spring
TX, US
Anthony Griffo
The Woodlands
TX, US
Yuelin Shen
Houston
TX, US
Youhe Zhang
Tomball
TX, US
Madapusi K Keshavan
The Woodlands
TX, US
Agent
Connolly Bove Lodge & Hutz
Assignee
Smith International
TX, US
IPC
E21B 10/46
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