Transparent nanocrystalline diamond ceramics fabricated from C{sub 60} fullerene by shock compression
- Materials and Structure Laboratory, Tokyo Institute of Technology, Nagatsuta, 4259 Midori, Yokohama 226 (Japan)
- National Institute of Researches for Inorganic Materials, 1-1 Namiki, Tsukuba 305 (Japan)
Transparent nanocrystalline diamond ceramics, consisting of a few nanometer-sized diamond crystallites that are unstable in themselves because of higher surface energy, were fabricated successfully from C{sub 60} fullerene using a shock compression and rapid quenching technique. The platelets were transparent and very hard, nearly comparable to type IIa diamond. Transmission electron microscopy and electron energy loss spectroscopy revealed that individual crystallites had combined directly or through a very thin and modified sp{sup 3} carbon layer, which possibly stabilized the nanometer-sized crystallites. The size order and sp{sup 3} configuration of the nanotexture caused the transparency and hardness of the present material. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 552931
- Journal Information:
- Applied Physics Letters, Vol. 71, Issue 20; Other Information: PBD: Nov 1997
- Country of Publication:
- United States
- Language:
- English
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