The current graphical method for obtaining activation energy(ies) from Accelerating Rate Calorimeter data is inadequate. There appear to be no established guidelines for determining the appropriate regions on the self-heating rate curve to draw the Arrhenius straight lines.
An interpretation framework needs to be (theoretically) developed that accounts for both the low temperature oxidation (LTO) and high temperature oxidation (HTO) regions of the data. Until this has been accomplished, the only acceptable way of inferring Arrhenius parameters would be history matching of the ARC data with nonlinear regression on formulated differential equations describing energy and mass conservation.
Post updated at Sunday 5th of May 2013 5:33:07 PM.