Journal
NUKLEONIKA
Volume 60, Issue 1, Pages 47-49Publisher
INST NUCLEAR CHEMISTRY TECHNOLOGY
DOI: 10.1515/nuka-2015-0012
Keywords
FeAl2O4; hercynite; Mossbauer spectroscopy; spinel
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Funding
- Polish Ministry of Science and Higher Education [N N507 457 637]
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In this work the synthesis of hercynite from Fe2O3 and Al2O3 powders was carried out by arc-melting method under the protective argon atmosphere. The obtained material was characterized with the use of powder X-ray diffractometry (XRD) and Mossbauer spectroscopy (MS). A Mossbauer effect in hercynite obtained by the arc-melting method indicated the cations distribution in the spinel structure among the tetrahedral and octahedral interstices. The presence of Fe2+ ions was detected in both tetrahedral and octahedral sites while Fe3+ ions occupied only the octahedral interstices. The approximate formula of the obtained iron-aluminate spinel was as follows (Fe0.772+Al0.233+)(Fe0.073+Fe0.052+Al0.88)(2)O-4.
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