Fracture processes in graphite and the effects of oxidation

Practical aspects for characterizing air oxidation of graphite

“…However, the extent of selective oxidation at the surface of the coarse grained graphite appears to be much higher. These results support similar conclusions reported by other authors [37].…”

Failure analysis of the effects of porosity in thermally oxidised nuclear graphite using finite element modelling

“…But the changes in strength and elastic modulus are more severe in thermal oxidation than in radiolytic oxidation. Due to the greater reactivity of carbon atoms located on the edges of the basal plane than those at mid-span, fine narrow slit-shaped pores develop in the binder phase during thermal oxidation [10].…”

Characterization of Porosity Development in Oxidized Graphite using Automated Image Analysis Techniques

“…It is known that the mechanical properties of graphite are severely reduced by oxidation in a variety of environments [1,2,3]. Graphite may suffer structural degradation via long term oxidation by impurity gases during normal operation conditions, or during uncontrolled oxidation in an air ingress accident leading to loss of coolant.…”