In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 2B ( 1999-02-01), p. L189-
Kurzfassung:
Oxidation of wüstite (Fe 1-δ O) in air and
disproportionation into α-Fe and Fe 3 O 4 in a vacuum-sealed tube at
temperatures below the transition temperature (843 K) were studied by Mössbauer spectroscopy. The observed discontinuity of weight
increase during oxidation in air indicates a two-step process, i.e., the first is the oxidation of Fe 1-δ O to Fe 3 O 4 and the
second, that of Fe 3 O 4 to α-Fe 2 O 3 . The change in the
fraction of components by annealing in a vacuum-sealed tube depends linearly on the logarithm of the annealing time. The process is interpreted as
having a wide distribution of effective thermal activation energy.
Materialart:
Online-Ressource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.38.L189
Sprache:
Unbekannt
Verlag:
IOP Publishing
Publikationsdatum:
1999
ZDB Id:
218223-3
ZDB Id:
797294-5
ZDB Id:
2006801-3
ZDB Id:
797295-7
