| CPC B24D 18/0009 (2013.01) [B24D 3/06 (2013.01); C04B 35/52 (2013.01); C04B 35/528 (2013.01); C04B 35/62685 (2013.01); C04B 35/62802 (2013.01); C04B 35/62884 (2013.01); C04B 35/6303 (2013.01); C04B 35/645 (2013.01); E21B 10/46 (2013.01); B82Y 30/00 (2013.01); C04B 2235/40 (2013.01); C04B 2235/401 (2013.01); C04B 2235/402 (2013.01); C04B 2235/407 (2013.01); C04B 2235/408 (2013.01); C04B 2235/427 (2013.01); C04B 2235/445 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/5472 (2013.01); C04B 2235/66 (2013.01); C04B 2235/80 (2013.01); Y10S 977/773 (2013.01)] | 16 Claims |

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1. A cutting element for an earth-boring tool, comprising:
a substrate; and
a polycrystalline diamond material directly attached to the substrate, the polycrystalline diamond material comprising:
grains of diamond material;
diamond nanoparticles bonded to the grains of diamond material; and
a material disposed within and approximately filling all interstitial spaces between the grains of diamond material and the diamond nanoparticles, the material consisting of aluminum fluoride;
wherein the polycrystalline diamond material is substantially free of a metal-solvent catalyst.
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