Amorphization of graphite induced by mechanical milling and subsequent crystallization of the amorphous carbon upon heat treating

J. Tang, W. Zhao, L. Li, A. U. Falster, W. B. Simmons, W. L. Zhou, Y. Ikuhara, J. H. Zhang

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)733-738
Number of pages6
JournalJournal of Materials Research
Volume11
Issue number3
DOIs
Publication statusPublished - 1996 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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