| 摘要 |
Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to an HPHT process, PCD materials so-formed, and PDCs including a polycrystalline diamond table comprising such PCD materials. In an embodiment, a PCD material includes a plurality of bonded diamond grains that exhibit a substantially unimodal diamond grain size distribution characterized, at least in part, by a parameter &thetas; that is less than about 1.0. &thetas; = x 6 · &sgr; , where x is the average grain size of the substantially unimodal diamond grain size distribution, and &sgr; is the standard deviation of the substantially unimodal diamond grain size distribution.
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