The “quiete Goldschmidt” - a mechanochemical, thermoanalytical, and spectroscopic study of selected steps of the aluminothermic reaction


The “quiete Goldschmidt” - a mechanochemical, thermoanalytical, and spectroscopic study of selected steps of the aluminothermic reaction

Stößer, R.; Feist, M.; Willgeroth, C.; Emmerling, F.; Menzel, M.; Reuther, H.

The Goldschmidt reaction (2 Al + α-Fe2O3) was investigated both under mechanical and thermal activation by employing a combination of analytical methods such as ESR and Mössbauer spectroscopies, magnetic susceptibility, X-ray powder diffraction (XRD), and thermal analysis (TA). Both the mechanical treatment and the TA runs under air caused the reaction conditions of “quiete redox reactions” due to a retarding effect and enabled a reaction study in a “slow motion mode”. This allowed to establish distinct partial steps of the integral reaction process depending on the intensity of the mechanical impact, the educt composition, the gas phase composition, and, finally, the thermal excitation in the TA runs.

Permalink: https://www.hzdr.de/publications/Publ-18764
Publ.-Id: 18764