ISSN:
1572-9540
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract The reaction kinetics of the hydrothermal transformation α-FeOOH→α-Fe2O3 was studied by means of Mössbauer spectroscopy. From the reaction isotherms, a monomolecular, first order reaction was found to characterise the hydrothermal transformation of alpha oxihydroxide to the alpha iron oxide. The rate constant as well as the activation energy of this process were determined. No intermediate phases were identified in the hydrothermal samples. The thermodynamic properties of the hydrothermal system α-FeOOH→α-Fe2O3 in correlation with Mössbauer spectroscopy data are discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02101054