Structural properties of Mn-substituted hercynite

Jastrzębska, I.; Bodnar, W.; Witte, K.; Burkel, E.; Stoch, P.; Szczerba, J.

doi:10.1515/nuka-2017-0013

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Tytuł artykułu

Structural properties of Mn-substituted hercynite

Autorzy

Jastrzębska I. , Bodnar W. , Witte K. , Burkel E. , Stoch P. , Szczerba J.

Treść / Zawartość

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Identyfikatory

DOI

10.1515/nuka-2017-0013

Warianty tytułu

Konferencja

All-Polish Seminar on Mössbauer Spectroscopy OSSM 2016 (11th ; 19-22 June 2016 ; Radom-Turno, Poland)

Języki publikacji

Abstrakty

In this work spinel series with the general formula Fe1–xMnxAl2O4 (where x = 0, 0.3, 0.5 and 0.7) were synthesized and characterized with respect to their structure and microstructure. X-ray diffractometry (XRD) was used to identify the phase composition that revealed a single phase spinel material. Rietveld refinements of the XRD patterns were carried out in order to determine the lattice and oxygen positional parameters of the spinel compounds. Mössbauer effect measurements were performed at room temperature to determine the local chemical environment of the Fe ions, their valences, and degrees of spinels inversion. It was shown that an increase in the Mn content led to a decrease in the ratio of Fe2+ to Fe3+. The results obtained from Mössbauer spectroscopy (MS) were used to establish the chemical formulas of the synthesized spinels. Finally, the microstructure that was observed using scanning electron microscopy (SEM) showed a compact microstructure with an octahedral crystal habit.

Słowa kluczowe

FeAl2O4 MnAl2O4 hercynite spinel galaxite Mössbauer spectroscopy

Wydawca

Institute of Nuclear Chemistry and Technology

Czasopismo

Nukleonika

Rocznik

2017

Tom

Vol. 62, No. 2

Strony

95--100

Opis fizyczny

Bibliogr. 34 poz., rys.

Twórcy

autor

Jastrzębska I.

ijastrz@agh.edu.pl

Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland

autor

Bodnar W.

Physics of New Materials, Institute of Physics, Faculty of Mathematics and Natural Sciences, University of Rostock, 23 Albert-Einstein-Str., 18059 Rostock, Germany

autor

Witte K.

Physics of New Materials, Institute of Physics, Faculty of Mathematics and Natural Sciences, University of Rostock, 23 Albert-Einstein-Str., 18059 Rostock, Germany

autor

Burkel E.

Physics of New Materials, Institute of Physics, Faculty of Mathematics and Natural Sciences, University of Rostock, 23 Albert-Einstein-Str., 18059 Rostock, Germany

autor

Stoch P.

Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland

autor

Szczerba J.

Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-8a0f210c-6f3f-46cb-a46c-b4dbb2175795