Transformation of diamond nanoparticles into onion-like carbon by electron irradiation studied directly inside an ultrahigh-vacuum transmission electron microscope
- Division of Mechanical Engineering, Graduate School of Science and Technology, Kobe University, Rokkodai, Nada, Kobe 657-8501 (Japan)
In situ observation of the transformation of diamond nanoparticles (DNP) into onion-like carbon (OLC) was made during electron-beam irradiation inside an ultrahigh-vacuum transmission electron microscope at 300 kV with 8.5x10{sup 23} e/m{sup 2}. 5 nm DNP changed into OLC within about 10 min of irradiation, while 20 nm DNP did not change to OLC but to graphite. Therefore, the size effect is critical to the formation of OLC. The mechanism of formation of OLC from DNP is discussed.
- OSTI ID:
- 20702420
- Journal Information:
- Applied Physics Letters, Vol. 86, Issue 22; Other Information: DOI: 10.1063/1.1935047; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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