Skip to Main content Skip to Navigation
Journal articles

Experimental test to validate the rate equation "dα/dt = kf(α)" used in the kinetic analysis of solid state reactions

Abstract : In order to improve the soundness of the kinetic analysis of solid-state reactions, we present an experimental test based on a sudden change (jump), during an experiment, of the temperature, or of the partial pressure of gases, which have an influence on the kinetic rate. This test, denoted "f(α) test" allows to discriminate if the kinetic modelling may or may not involve the rate equation dα/dt = kf(α) for any kind of reaction: thermal decomposition, solids reacting with gases, ... Numerous examples are given and discussed according to the answer of the test, mainly based on the consideration of nucleation and growth processes.
Document type :
Journal articles
Complete list of metadatas

https://hal-emse.ccsd.cnrs.fr/emse-00608170
Contributor : Andrée-Aimée Toucas <>
Submitted on : Tuesday, July 12, 2011 - 12:35:25 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:29 PM

Identifiers

Citation

Michèle Pijolat, Françoise Valdivieso, Michel Soustelle. Experimental test to validate the rate equation "dα/dt = kf(α)" used in the kinetic analysis of solid state reactions. Thermochimica Acta, Elsevier, 2005, 439 (1-2), pp.86-93. ⟨10.1016/j.tca.2005.08.038⟩. ⟨emse-00608170⟩

Share

Metrics

Record views

169