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.
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Tang, J., Zhao, W., Li, L. et al. Amorphization of graphite induced by mechanical milling and subsequent crystallization of the amorphous carbon upon heat treating. Journal of Materials Research 11, 733–738 (1996). https://doi.org/10.1557/JMR.1996.0088
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DOI: https://doi.org/10.1557/JMR.1996.0088