Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method
The effect of thulium ion substitution for iron on the structural and electromagnetic properties of Mg-Mn ferrites is reported. The Mg0.9Mn0.1TmxFe1.8-xO4 ferrite compositions with x=0.0, 0.025, 0.05, and 0.075 were synthesized by a nitrate-citrate solution combustion method. Tm substitution had tak...
Saved in:
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2015
|
Subjects: | |
Online Access: | http://eprints.um.edu.my/15781/1/Study_on_the_structural_and_electromagnetic_properties_of_Tm-substituted_Mg.pdf http://eprints.um.edu.my/15781/ http://www.sciencedirect.com/science/article/pii/S030488531500267X |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.um.eprints.15781 |
---|---|
record_format |
eprints |
spelling |
my.um.eprints.157812016-04-18T00:45:03Z http://eprints.um.edu.my/15781/ Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method Lwin, N. Othman, R. Sreekantan, S. Fauzi, M.N.A. T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery The effect of thulium ion substitution for iron on the structural and electromagnetic properties of Mg-Mn ferrites is reported. The Mg0.9Mn0.1TmxFe1.8-xO4 ferrite compositions with x=0.0, 0.025, 0.05, and 0.075 were synthesized by a nitrate-citrate solution combustion method. Tm substitution had taken place and this was found to produce a secondary phase TmFeO3. The crystallite size of the powder calcined at 500 degrees C was in the range of 9-13 nm. Subsequently, the calcined ferrite powders were compacted and sintered at 1250 degrees C. It was found that the physical and magnetic properties had changed with Tm contents. Bulk density was found to decrease from 4.26 to 3.82 g/cm(3) with increasing Tin contents. It was also found that the saturation magnetization (M-s=38.41-23.62 emu/g) had decreased with an increase of Tm. In this study, the highest resistivity (39.84 x 10(6) Omega cm) was observed for Mg0.9Mn0.1Fe1.725Tm0.075O4. The correlation between structural and electromagnetic properties of the Tm-substituted samples is interpreted based on phase composition as well as microstructure. (C) 2015 Elsevier B.V. All rights reserved Elsevier 2015-07-01 Article PeerReviewed application/pdf en http://eprints.um.edu.my/15781/1/Study_on_the_structural_and_electromagnetic_properties_of_Tm-substituted_Mg.pdf Lwin, N. and Othman, R. and Sreekantan, S. and Fauzi, M.N.A. (2015) Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method. Journal of Magnetism and Magnetic Materials, 385. pp. 433-440. ISSN 0304-8853 http://www.sciencedirect.com/science/article/pii/S030488531500267X 10.1016/j.jmmm.2015.03.046 |
institution |
Universiti Malaya |
building |
UM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Malaya |
content_source |
UM Research Repository |
url_provider |
http://eprints.um.edu.my/ |
language |
English |
topic |
T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery |
spellingShingle |
T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery Lwin, N. Othman, R. Sreekantan, S. Fauzi, M.N.A. Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method |
description |
The effect of thulium ion substitution for iron on the structural and electromagnetic properties of Mg-Mn ferrites is reported. The Mg0.9Mn0.1TmxFe1.8-xO4 ferrite compositions with x=0.0, 0.025, 0.05, and 0.075 were synthesized by a nitrate-citrate solution combustion method. Tm substitution had taken place and this was found to produce a secondary phase TmFeO3. The crystallite size of the powder calcined at 500 degrees C was in the range of 9-13 nm. Subsequently, the calcined ferrite powders were compacted and sintered at 1250 degrees C. It was found that the physical and magnetic properties had changed with Tm contents. Bulk density was found to decrease from 4.26 to 3.82 g/cm(3) with increasing Tin contents. It was also found that the saturation magnetization (M-s=38.41-23.62 emu/g) had decreased with an increase of Tm. In this study, the highest resistivity (39.84 x 10(6) Omega cm) was observed for Mg0.9Mn0.1Fe1.725Tm0.075O4. The correlation between structural and electromagnetic properties of the Tm-substituted samples is interpreted based on phase composition as well as microstructure. (C) 2015 Elsevier B.V. All rights reserved |
format |
Article |
author |
Lwin, N. Othman, R. Sreekantan, S. Fauzi, M.N.A. |
author_facet |
Lwin, N. Othman, R. Sreekantan, S. Fauzi, M.N.A. |
author_sort |
Lwin, N. |
title |
Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method |
title_short |
Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method |
title_full |
Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method |
title_fullStr |
Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method |
title_full_unstemmed |
Study on the structural and electromagnetic properties of Tm-substituted Mg-Mn ferrites by a solution combustion method |
title_sort |
study on the structural and electromagnetic properties of tm-substituted mg-mn ferrites by a solution combustion method |
publisher |
Elsevier |
publishDate |
2015 |
url |
http://eprints.um.edu.my/15781/1/Study_on_the_structural_and_electromagnetic_properties_of_Tm-substituted_Mg.pdf http://eprints.um.edu.my/15781/ http://www.sciencedirect.com/science/article/pii/S030488531500267X |
_version_ |
1643690134761111552 |
score |
13.18916 |