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POLYCRYSTALLINE DIAMOND COMPACTS INCLUDING DIAMOND NANOPARTICLES, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SAME
POLYCRYSTALLINE DIAMOND COMPACTS INCLUDING DIAMOND NANOPARTICLES, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SAME
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机译:包括金刚石纳米粒子的多晶金刚石压块,包括这种压块的切削元素和土钻工具及其形成方法
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摘要
A polycrystalline compact includes a plurality of diamond grains of micron size, submicron size, or both, and a plurality of diamond nanoparticles disposed in interstitial spaces between the plurality of diamond grains. A method of forming a polycrystalline compact includes combining a plurality of micron and/or submicron-sized diamond grains and a plurality of diamond nanoparticles to form a mixture and sintering the mixture in a presence of a carburized binder to form a polycrystalline hard material having a plurality of inter-bonded diamond grains and diamond nanoparticles. Cutting elements including a polycrystalline compact and earth-boring tools bearing such compacts are also disclosed.
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