Pinhole formation and weight loss during oxidation of industrial graphite and carbon

Else Breval, Maria Klimkiewicz, Dinesh K. Agrawal, Frank Rusinko

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The performance of graphite or carbon above 400°C depends to a large degree on its resistance to oxidation. In this work oxidation data of graphite and carbon was analyzed using the number of created pinholes for short-term oxidation and weight loss for long-term oxidation. The effect of grain size, purification, and the amount of inorganic impurities was investigated. The migration of vanadium, the formation and morphology of pinholes, and the weight loss were followed in different samples. Short-term oxidation is diminished by the presence of calcium salts and enhanced by the presence of V2O5, but the latter effect is diminished by the presence of Ca3V2O8. Both calcium salts and V2O5 enhance the long-term oxidation.

Original languageEnglish (US)
Pages (from-to)1017-1027
Number of pages11
JournalCarbon
Volume40
Issue number7
DOIs
StatePublished - Jun 2002

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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