A review of oxidation kinetics of carbon fibre-carbon matrix composites at high temperature

Gotō, Kunio; Han, Kyusung; Pierre, Guillaume

doi:10.1016/0025-5416(87)90104-2

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the chemical regime, the thermodynamically favored reaction between carbon and oxygen is the formation of CO 2 (first order reaction) [63,64]. The rate at which the reaction progresses depends directly on the changes in concentration of the reactants according to: is the reaction rate constant, t is the time, and n is a numerical index that characterizes the order of the reaction (n = 1 for first order reactions) [65].…”

Section: Oxidation Kineticsmentioning

confidence: 99%

“…In the chemical regime, the oxidation process is well described by a first order reaction and F(α) = (1 -α) [62,68]. The kinetic parameters can be determined by plotting ln The critical temperature that separates both steps depends on several factors, including surface area and pore structure of the material [69], and has been neither well defined nor exactly determined, particularly for carbon nanomaterials [64]. Other critical factors are the concentration of the oxidizing agents, the flow and/or agitation rates used during the experiments, and mechanical stress applied to the material [64].…”

Section: Oxidation Kineticsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of structure and composition of nanodiamond powders on thermal stability and oxidation kinetics

Bradac

Osswald

2018

Carbon

View full text Add to dashboard Cite

Oxidation has been suggested as an effective and scalable means for industrial purification of nanodiamond (ND) powders. However, conflicting accounts were reported with respect to oxidation behavior of commercial powders and the temperature range in which non-diamond phases can be removed efficiently. In this study, we investigate the effects of composition and structural characteristics of ND on the oxidation kinetics. The effect of crystal size was analyzed by directly measure the oxidation behavior of individual ND crystal in the size range 2-20 nm, probing the size-dependence of the oxidation kinetics at the lower end of the nanoscale. This study also leads to the first experimental data on the minimum size at which ND crystals become thermodynamically unstable and cease to exist as well as the minimum size of a luminescent ND still hosting an optically active nitrogen-vacancy (NV) center.

show abstract

Section: Oxidation Kineticsmentioning

confidence: 99%