Development of Optimum Preparation Conditions of Fe-Deficient M-Type Ca-Sr-La System Hexagonal Ferrite Magnet

Ching Chien Huang; Shih Hao Lin; Chin Chieh Mo; Tsung Han Hsiao; Yen Hua Tai; Yung Hsiung Hung; Chun Hao Chiu; H. H. Hsu; C. H. Cheng

doi:10.1109/TMAG.2020.3042095

Development of Optimum Preparation Conditions of Fe-Deficient M-Type Ca-Sr-La System Hexagonal Ferrite Magnet

Ching Chien Huang^*, Shih Hao Lin, Chin Chieh Mo, Tsung Han Hsiao, Yen Hua Tai, Yung Hsiung Hung, Chun Hao Chiu, H. H. Hsu^*, C. H. Cheng^*

^*Corresponding author for this work

Department of Mechatronic Engineering

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

8 Citations (Scopus)

Abstract

In this work, an experiment was carried out to investigate the preparation condition of anisotropic Fe-deficient M-type Ca-Sr-La system ferrite with optimum magnetic and physical properties using the raw material Fe2O3 from steel industrial iron oxide waste. The compositions of the calcined ferrites were chosen according to the stoichiometry Ca1-x-y LaxSryFe10.9CozO19, where M-type single-phase calcined powder was synthesized with a composition of x = 0.45 , y = 0.18 , and z= 0. The effect of CaO, SiO2, and Co3O4 inter-additives on the Ca-Sr-La system ferrite was also discussed in order to obtain lowerature sintered magnets. The magnetic properties of Br = 4570 Gauss, bHc = 4320 Oe, iHc = 5260 Oe, and ( BH )max= 5.16 MGOe were obtained for Ca-Sr-La system hard magnets with low cobalt content at 1.85 wt%. The magnetic properties of the prepared magnets really good compared to that of the traditional Sr-La-cobalt (Co) M-type ferrite, which has been the highest grade M-type hard ferrite. The remarkable steel industrial iron oxide waste Fe2O3 is recycled to produce high-end permanent magnets under an output power of < 1 kW, which will eventually be used in high-efficiency motors.

Original language	English
Article number	9277610
Journal	IEEE Transactions on Magnetics
Volume	57
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.2020.3042095
Publication status	Published - 2021 Feb

Keywords

By-product
circular economy
hard ferrite
iron oxide powder
magnet
motor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TMAG.2020.3042095

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title = "Development of Optimum Preparation Conditions of Fe-Deficient M-Type Ca-Sr-La System Hexagonal Ferrite Magnet",

abstract = "In this work, an experiment was carried out to investigate the preparation condition of anisotropic Fe-deficient M-type Ca-Sr-La system ferrite with optimum magnetic and physical properties using the raw material Fe2O3 from steel industrial iron oxide waste. The compositions of the calcined ferrites were chosen according to the stoichiometry Ca1-x-y LaxSryFe10.9CozO19, where M-type single-phase calcined powder was synthesized with a composition of x = 0.45 , y = 0.18 , and z= 0. The effect of CaO, SiO2, and Co3O4 inter-additives on the Ca-Sr-La system ferrite was also discussed in order to obtain lowerature sintered magnets. The magnetic properties of Br = 4570 Gauss, bHc = 4320 Oe, iHc = 5260 Oe, and ( BH )max= 5.16 MGOe were obtained for Ca-Sr-La system hard magnets with low cobalt content at 1.85 wt%. The magnetic properties of the prepared magnets really good compared to that of the traditional Sr-La-cobalt (Co) M-type ferrite, which has been the highest grade M-type hard ferrite. The remarkable steel industrial iron oxide waste Fe2O3 is recycled to produce high-end permanent magnets under an output power of < 1 kW, which will eventually be used in high-efficiency motors.",

keywords = "By-product, circular economy, hard ferrite, iron oxide powder, magnet, motor",

author = "Huang, {Ching Chien} and Lin, {Shih Hao} and Mo, {Chin Chieh} and Hsiao, {Tsung Han} and Tai, {Yen Hua} and Hung, {Yung Hsiung} and Chiu, {Chun Hao} and Hsu, {H. H.} and Cheng, {C. H.}",

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AU - Huang, Ching Chien

AU - Lin, Shih Hao

AU - Mo, Chin Chieh

AU - Hsiao, Tsung Han

AU - Tai, Yen Hua

AU - Hung, Yung Hsiung

AU - Chiu, Chun Hao

AU - Hsu, H. H.

AU - Cheng, C. H.

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N2 - In this work, an experiment was carried out to investigate the preparation condition of anisotropic Fe-deficient M-type Ca-Sr-La system ferrite with optimum magnetic and physical properties using the raw material Fe2O3 from steel industrial iron oxide waste. The compositions of the calcined ferrites were chosen according to the stoichiometry Ca1-x-y LaxSryFe10.9CozO19, where M-type single-phase calcined powder was synthesized with a composition of x = 0.45 , y = 0.18 , and z= 0. The effect of CaO, SiO2, and Co3O4 inter-additives on the Ca-Sr-La system ferrite was also discussed in order to obtain lowerature sintered magnets. The magnetic properties of Br = 4570 Gauss, bHc = 4320 Oe, iHc = 5260 Oe, and ( BH )max= 5.16 MGOe were obtained for Ca-Sr-La system hard magnets with low cobalt content at 1.85 wt%. The magnetic properties of the prepared magnets really good compared to that of the traditional Sr-La-cobalt (Co) M-type ferrite, which has been the highest grade M-type hard ferrite. The remarkable steel industrial iron oxide waste Fe2O3 is recycled to produce high-end permanent magnets under an output power of < 1 kW, which will eventually be used in high-efficiency motors.

AB - In this work, an experiment was carried out to investigate the preparation condition of anisotropic Fe-deficient M-type Ca-Sr-La system ferrite with optimum magnetic and physical properties using the raw material Fe2O3 from steel industrial iron oxide waste. The compositions of the calcined ferrites were chosen according to the stoichiometry Ca1-x-y LaxSryFe10.9CozO19, where M-type single-phase calcined powder was synthesized with a composition of x = 0.45 , y = 0.18 , and z= 0. The effect of CaO, SiO2, and Co3O4 inter-additives on the Ca-Sr-La system ferrite was also discussed in order to obtain lowerature sintered magnets. The magnetic properties of Br = 4570 Gauss, bHc = 4320 Oe, iHc = 5260 Oe, and ( BH )max= 5.16 MGOe were obtained for Ca-Sr-La system hard magnets with low cobalt content at 1.85 wt%. The magnetic properties of the prepared magnets really good compared to that of the traditional Sr-La-cobalt (Co) M-type ferrite, which has been the highest grade M-type hard ferrite. The remarkable steel industrial iron oxide waste Fe2O3 is recycled to produce high-end permanent magnets under an output power of < 1 kW, which will eventually be used in high-efficiency motors.

KW - By-product

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KW - hard ferrite

KW - iron oxide powder

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Development of Optimum Preparation Conditions of Fe-Deficient M-Type Ca-Sr-La System Hexagonal Ferrite Magnet

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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