Amorphization of graphite induced by mechanical milling and subsequent crystallization of the amorphous carbon upon heat treating
- 1 March 1996
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 11 (3) , 733-738
- https://doi.org/10.1557/jmr.1996.0088
Abstract
The effects of mechanical milling (MM) on the phase transformation of graphite carbon were investigated using high resolution electron microscopy (HREM), x-ray diffraction, and differential thermal analysis (DTA). Amorphization of graphite as a result of prolonged high-energy ball milling was directly observed with HREM. The exothermic peak in the DTA trace of the ∼200 h ball-milled sample indicated a crystallization onset temperature of about 670 °C and crystallization activation energy of 234 kJ/mole.Keywords
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