SUPER HARD CONSTRUCTIONS & METHODS OF MAKING SAME
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Jul 6, 2015
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Jul 7, 2014
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A super hard polycrystalline construction comprises a body of polycrystalline super hard material comprising a first fraction of super hard grains and a second fraction of super hard grains, the first fraction having a greater average grain size than the super hard grains in the second fraction, the super hard grains in the first and second fraction having a peripheral surface. The super hard grains in the first fraction are bonded along at least a portion of the peripheral surface to at least a portion of a plurality of super hard grains in the second fraction, the super hard grains in the first fraction being spaced from adjacent grains in the first fraction by a distance of between around 50 to around 500 nm.
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