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

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

doi:10.1016/S0008-6223(01)00231-7

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

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

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

13 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 language	English (US)
Pages (from-to)	1017-1027
Number of pages	11
Journal	Carbon
Volume	40
Issue number	7
DOIs	https://doi.org/10.1016/S0008-6223(01)00231-7
State	Published - Jun 2002

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science

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10.1016/S0008-6223(01)00231-7

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title = "Pinhole formation and weight loss during oxidation of industrial graphite and carbon",

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.",

author = "Else Breval and Maria Klimkiewicz and Agrawal, {Dinesh K.} and Frank Rusinko",

note = "Funding Information: The work was supported by The Carbon Research Center, The Pennsylvania State University and Carbone of America, Groupe Carbone Lorraine, St. Marys, PA",

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T1 - Pinhole formation and weight loss during oxidation of industrial graphite and carbon

AU - Breval, Else

AU - Klimkiewicz, Maria

AU - Agrawal, Dinesh K.

AU - Rusinko, Frank

N1 - Funding Information: The work was supported by The Carbon Research Center, The Pennsylvania State University and Carbone of America, Groupe Carbone Lorraine, St. Marys, PA

PY - 2002/6

Y1 - 2002/6

N2 - 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.

AB - 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.

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

Abstract

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