A comparative study of the magnetic and microwave properties of Al3+ and In3+ substituted Mg-Mn ferrites

Chien Yie Tsay; Shan Chien Liang; Chien Ming Lei; Chung Chieh Chang

doi:10.1016/j.ceramint.2015.11.154

A comparative study of the magnetic and microwave properties of Al³⁺ and In³⁺ substituted Mg-Mn ferrites

Chien Yie Tsay, Shan Chien Liang, Chien Ming Lei, Chung Chieh Chang

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The effect of substitution of diamagnetic Al³⁺ and In³⁺ ions for partial Fe³⁺ ions in a spinel lattice on the magnetic and microwave properties of magnesium-manganese (Mg-Mn) ferrites has been studied. Three kinds of Mg-Mn based ferrites with compositions of Mg_0.9Mn_0.1Fe₂O₄, Mg_0.9Mn_0.1Al_0.1Fe_1.9O₄, and Mg_0.9Mn_0.1In_0.1Fe_1.9O₄ were prepared by the solid-state reaction route. Each mixture of high-purity starting materials (oxide powders) in stoichiometric amounts was calcined at 1100 °C for 4 h, and the debinded green compacts were sintered at 1350 °C for 4 h. XRD examination confirmed that the sintered ferrite samples had a single-phase cubic spinel structure. The incorporation of Al³⁺ or In³⁺ ions in place of Fe³⁺ ions in Mg-Mn ferrites increased the average particle size, decreased the Curie temperature, and resulted in a broader resonance linewidth as compared to un-substituted Mg-Mn ferrites in the X-band. In this study, the In³⁺ substituted Mg-Mn ferrites exhibited the highest saturation magnetization of 35.7 emu/g, the lowest coercivity of 4.1 Oe, and the highest Q×f value of 1050 GHz at a frequency of 6.5 GHz.

Original language	English
Pages (from-to)	4748-4753
Number of pages	6
Journal	Ceramics International
Volume	42
Issue number	4
DOIs	https://doi.org/10.1016/j.ceramint.2015.11.154
Publication status	Published - Mar 1 2016
Externally published	Yes

Keywords

A. Powders: solid state reaction
C. Magnetic properties
D. Ferrites
D. Spinels
E. Functional applications

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2015.11.154

Cite this

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title = "A comparative study of the magnetic and microwave properties of Al3+ and In3+ substituted Mg-Mn ferrites",

abstract = "The effect of substitution of diamagnetic Al3+ and In3+ ions for partial Fe3+ ions in a spinel lattice on the magnetic and microwave properties of magnesium-manganese (Mg-Mn) ferrites has been studied. Three kinds of Mg-Mn based ferrites with compositions of Mg0.9Mn0.1Fe2O4, Mg0.9Mn0.1Al0.1Fe1.9O4, and Mg0.9Mn0.1In0.1Fe1.9O4 were prepared by the solid-state reaction route. Each mixture of high-purity starting materials (oxide powders) in stoichiometric amounts was calcined at 1100 °C for 4 h, and the debinded green compacts were sintered at 1350 °C for 4 h. XRD examination confirmed that the sintered ferrite samples had a single-phase cubic spinel structure. The incorporation of Al3+ or In3+ ions in place of Fe3+ ions in Mg-Mn ferrites increased the average particle size, decreased the Curie temperature, and resulted in a broader resonance linewidth as compared to un-substituted Mg-Mn ferrites in the X-band. In this study, the In3+ substituted Mg-Mn ferrites exhibited the highest saturation magnetization of 35.7 emu/g, the lowest coercivity of 4.1 Oe, and the highest Q×f value of 1050 GHz at a frequency of 6.5 GHz.",

keywords = "A. Powders: solid state reaction, C. Magnetic properties, D. Ferrites, D. Spinels, E. Functional applications",

author = "Tsay, {Chien Yie} and Liang, {Shan Chien} and Lei, {Chien Ming} and Chang, {Chung Chieh}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd and Techna Group S.r.l.",

year = "2016",

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doi = "10.1016/j.ceramint.2015.11.154",

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T1 - A comparative study of the magnetic and microwave properties of Al3+ and In3+ substituted Mg-Mn ferrites

AU - Tsay, Chien Yie

AU - Liang, Shan Chien

AU - Lei, Chien Ming

AU - Chang, Chung Chieh

PY - 2016/3/1

Y1 - 2016/3/1

N2 - The effect of substitution of diamagnetic Al3+ and In3+ ions for partial Fe3+ ions in a spinel lattice on the magnetic and microwave properties of magnesium-manganese (Mg-Mn) ferrites has been studied. Three kinds of Mg-Mn based ferrites with compositions of Mg0.9Mn0.1Fe2O4, Mg0.9Mn0.1Al0.1Fe1.9O4, and Mg0.9Mn0.1In0.1Fe1.9O4 were prepared by the solid-state reaction route. Each mixture of high-purity starting materials (oxide powders) in stoichiometric amounts was calcined at 1100 °C for 4 h, and the debinded green compacts were sintered at 1350 °C for 4 h. XRD examination confirmed that the sintered ferrite samples had a single-phase cubic spinel structure. The incorporation of Al3+ or In3+ ions in place of Fe3+ ions in Mg-Mn ferrites increased the average particle size, decreased the Curie temperature, and resulted in a broader resonance linewidth as compared to un-substituted Mg-Mn ferrites in the X-band. In this study, the In3+ substituted Mg-Mn ferrites exhibited the highest saturation magnetization of 35.7 emu/g, the lowest coercivity of 4.1 Oe, and the highest Q×f value of 1050 GHz at a frequency of 6.5 GHz.

AB - The effect of substitution of diamagnetic Al3+ and In3+ ions for partial Fe3+ ions in a spinel lattice on the magnetic and microwave properties of magnesium-manganese (Mg-Mn) ferrites has been studied. Three kinds of Mg-Mn based ferrites with compositions of Mg0.9Mn0.1Fe2O4, Mg0.9Mn0.1Al0.1Fe1.9O4, and Mg0.9Mn0.1In0.1Fe1.9O4 were prepared by the solid-state reaction route. Each mixture of high-purity starting materials (oxide powders) in stoichiometric amounts was calcined at 1100 °C for 4 h, and the debinded green compacts were sintered at 1350 °C for 4 h. XRD examination confirmed that the sintered ferrite samples had a single-phase cubic spinel structure. The incorporation of Al3+ or In3+ ions in place of Fe3+ ions in Mg-Mn ferrites increased the average particle size, decreased the Curie temperature, and resulted in a broader resonance linewidth as compared to un-substituted Mg-Mn ferrites in the X-band. In this study, the In3+ substituted Mg-Mn ferrites exhibited the highest saturation magnetization of 35.7 emu/g, the lowest coercivity of 4.1 Oe, and the highest Q×f value of 1050 GHz at a frequency of 6.5 GHz.

KW - A. Powders: solid state reaction

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KW - D. Ferrites

KW - D. Spinels

KW - E. Functional applications

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