Transparent Platelets Consisting o Amorphous Diamond and Nanocrystalline Diamond Synthesized from C_<60> Fullerence by Shock Compression
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Transparent platelets of nanocrystalline diamond and amorphous diamond were fabricated successfully from C<SUB>60</SUB> fullerene using a shock compression and rapid quenching technique . The former nanocrystalline diamond platelets consist of a few nanometer-sized crystallites that are unstable in themselves because of higher surface energy . The platelets were transparent and very hard, nearly comparable to type ha diamond. Transmission electron microscopy and electron energy loss spectroscopy revealed that individual crystallites were combined directly or through a very thin and modified sp<SUP>3</SUP> carbon layer, which possibly stabilized the nanometer-sized crystallites. Such nanotexure caused the transparency and hardness of the present material.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 7, 966-968, 1998
The Japan Society of High Pressure Science and Technology