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:	Mössbauer spectroscopy MgO Fe ions crystal structure
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
recordtype	oai_dc
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
_version_	1612636495139569664

Position of Fe ions in MgO crystalline structure

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