Amorphization of graphite induced by mechanical milling and subsequent crystallization of the amorphous carbon upon heat treating
Source abstract
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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Research context
OpenAlex topics: Ion-surface interactions and analysis · Metallic Glasses and Amorphous Alloys · Diamond and Carbon-based Materials Research
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