Position of Fe ions in MgO crystalline structure

Magnesium oxide (MgO) is one of the most important raw materials in many branches of industry. Magnesium oxide is a popular refractory raw material because of its high refractoriness and high resistance to basic slags and environment. In many cases, use of MgO is limited by its properties, especiall...

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Main Authors: Szczerba Jacek, Prorok Ryszard, Stoch Paweł, Śnieżek Edyta, Jastrzębska Ilona
Format: Article
Language:English
Published: Sciendo 2015-03-01
Series:Nukleonika
Subjects:
MgO
Online Access:http://www.degruyter.com/view/j/nuka.2015.60.issue-1/nuka-2015-0024/nuka-2015-0024.xml?format=INT
id doaj-art-4c98767587f2472189712f29d7e108c0
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spelling doaj-art-4c98767587f2472189712f29d7e108c02018-09-02T15:42:30ZengSciendoNukleonika0029-59222015-03-0160114314510.1515/nuka-2015-0024nuka-2015-0024Position of Fe ions in MgO crystalline structureSzczerba Jacek0Prorok Ryszard1Stoch Paweł2Śnieżek Edyta3Jastrzębska Ilona4Department of Ceramics and Refractories, Faculty of Material Science and Ceramics, AGH – University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: +48 12 617 2462, Fax: +48 12 633 4630Department of Ceramics and Refractories, Faculty of Material Science and Ceramics, AGH – University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: +48 12 617 2462, Fax: +48 12 633 4630Department of Ceramics and Refractories, Faculty of Material Science and Ceramics, AGH – University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: +48 12 617 2462, Fax: +48 12 633 4630Department of Ceramics and Refractories, Faculty of Material Science and Ceramics, AGH – University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: +48 12 617 2462, Fax: +48 12 633 4630Department of Ceramics and Refractories, Faculty of Material Science and Ceramics, AGH – University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: +48 12 617 2462, Fax: +48 12 633 4630Magnesium oxide (MgO) is one of the most important raw materials in many branches of industry. Magnesium oxide is a popular refractory raw material because of its high refractoriness and high resistance to basic slags and environment. In many cases, use of MgO is limited by its properties, especially the presence of secondary phases like iron oxides. The amount and distribution of iron oxides can strongly influence the technological properties of MgO and depend on the manufacturing method, particularly the heat-treatment process. The aim of the study was to evaluate the influence of the heat-treatment process on amount and distribution of iron ions in a magnesium oxide lattice. The 57Fe Mössbauer effect measurements of fused and sintered magnesium oxide samples doped by the iron oxide were conducted. Investigation reveals in both cases the presence of Fe2+ as well as Fe3+ ions. Fe2+ ions occupy Mg2+ octahedral sites in the MgO lattice, whereas the Fe3+ ions are located in highly distorted octahedral coordination. The amount of Fe2+ varies from around 66% for fused samples to 30% for sintered samples.http://www.degruyter.com/view/j/nuka.2015.60.issue-1/nuka-2015-0024/nuka-2015-0024.xml?format=INTMössbauer spectroscopyMgOFe ionscrystal structure
institution Open Data Bank
collection Open Access Journals
building Directory of Open Access Journals
language English
format Article
author Szczerba Jacek
Prorok Ryszard
Stoch Paweł
Śnieżek Edyta
Jastrzębska Ilona
spellingShingle Szczerba Jacek
Prorok Ryszard
Stoch Paweł
Śnieżek Edyta
Jastrzębska Ilona
Position of Fe ions in MgO crystalline structure
Nukleonika
Mössbauer spectroscopy
MgO
Fe ions
crystal structure
author_facet Szczerba Jacek
Prorok Ryszard
Stoch Paweł
Śnieżek Edyta
Jastrzębska Ilona
author_sort Szczerba Jacek
title Position of Fe ions in MgO crystalline structure
title_short Position of Fe ions in MgO crystalline structure
title_full Position of Fe ions in MgO crystalline structure
title_fullStr Position of Fe ions in MgO crystalline structure
title_full_unstemmed Position of Fe ions in MgO crystalline structure
title_sort position of fe ions in mgo crystalline structure
publisher Sciendo
series Nukleonika
issn 0029-5922
publishDate 2015-03-01
description Magnesium oxide (MgO) is one of the most important raw materials in many branches of industry. Magnesium oxide is a popular refractory raw material because of its high refractoriness and high resistance to basic slags and environment. In many cases, use of MgO is limited by its properties, especially the presence of secondary phases like iron oxides. The amount and distribution of iron oxides can strongly influence the technological properties of MgO and depend on the manufacturing method, particularly the heat-treatment process. The aim of the study was to evaluate the influence of the heat-treatment process on amount and distribution of iron ions in a magnesium oxide lattice. The 57Fe Mössbauer effect measurements of fused and sintered magnesium oxide samples doped by the iron oxide were conducted. Investigation reveals in both cases the presence of Fe2+ as well as Fe3+ ions. Fe2+ ions occupy Mg2+ octahedral sites in the MgO lattice, whereas the Fe3+ ions are located in highly distorted octahedral coordination. The amount of Fe2+ varies from around 66% for fused samples to 30% for sintered samples.
topic Mössbauer spectroscopy
MgO
Fe ions
crystal structure
url http://www.degruyter.com/view/j/nuka.2015.60.issue-1/nuka-2015-0024/nuka-2015-0024.xml?format=INT
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