Preparation and magnetic properties of high performance Ca–Sr based M-type hexagonal ferrites

Ching Chien Huang; Chin Chieh Mo; Tsung Han Hsiao; Guan Ming Chen; Sheng Han Lu; Yen Hua Tai; Hsiao Hsuan Hsu; Chun Hu Cheng

doi:10.1016/j.rinma.2020.100150

Preparation and magnetic properties of high performance Ca–Sr based M-type hexagonal ferrites

Ching Chien Huang^*, Chin Chieh Mo, Tsung Han Hsiao, Guan Ming Chen, Sheng Han Lu, Yen Hua Tai, Hsiao Hsuan Hsu^*, Chun Hu Cheng^*

^*Corresponding author for this work

Department of Mechatronic Engineering

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

7 Citations (Scopus)

Abstract

In this study, the preparation and magnetic properties of Ca–Sr M-type (Ca_1-x-yLa_xSr_yFe_10.9Co_zO₁₉) ferrire magnets were investigated. A M-type singlephase calcined powder was synthesized with a composition of x = 0.45, y = 0.18 and z = 0. And a very high magnetic properties of B_r = 5425Gauss and _iH_c = 4602Oe were obtained by the thermal annealing and secondary fine-milling method in the sintered magnets. The magnetic properties greats exceeds that of traditional Sr–La–Co M-type ferrite, which has been the highest grade M-type hard ferrite. By use of the innovative post-processing method, the improvement could be attributed to about 4% and 0.8% increase in motor torque and motor efficiency in comparison to that of conventional process, which will eventually be used in high-efficiency motors.

Original language	English
Article number	100150
Journal	Results in Materials
Volume	8
DOIs	https://doi.org/10.1016/j.rinma.2020.100150
Publication status	Published - 2020 Dec

Keywords

Ca–Sr based
Hard ferrite
Iron oxide powder (FeO)
Motor
Secondary fine-milling
Thermal annealing

ASJC Scopus subject areas

General Materials Science

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10.1016/j.rinma.2020.100150

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title = "Preparation and magnetic properties of high performance Ca–Sr based M-type hexagonal ferrites",

abstract = "In this study, the preparation and magnetic properties of Ca–Sr M-type (Ca1-x-yLaxSryFe10.9CozO19) ferrire magnets were investigated. A M-type singlephase calcined powder was synthesized with a composition of x = 0.45, y = 0.18 and z = 0. And a very high magnetic properties of Br = 5425Gauss and iHc = 4602Oe were obtained by the thermal annealing and secondary fine-milling method in the sintered magnets. The magnetic properties greats exceeds that of traditional Sr–La–Co M-type ferrite, which has been the highest grade M-type hard ferrite. By use of the innovative post-processing method, the improvement could be attributed to about 4% and 0.8% increase in motor torque and motor efficiency in comparison to that of conventional process, which will eventually be used in high-efficiency motors.",

keywords = "Ca–Sr based, Hard ferrite, Iron oxide powder (FeO), Motor, Secondary fine-milling, Thermal annealing",

author = "Huang, {Ching Chien} and Mo, {Chin Chieh} and Hsiao, {Tsung Han} and Chen, {Guan Ming} and Lu, {Sheng Han} and Tai, {Yen Hua} and Hsu, {Hsiao Hsuan} and Cheng, {Chun Hu}",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s)",

year = "2020",

month = dec,

doi = "10.1016/j.rinma.2020.100150",

language = "English",

volume = "8",

journal = "Results in Materials",

issn = "2590-048X",

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T1 - Preparation and magnetic properties of high performance Ca–Sr based M-type hexagonal ferrites

AU - Huang, Ching Chien

AU - Mo, Chin Chieh

AU - Hsiao, Tsung Han

AU - Chen, Guan Ming

AU - Lu, Sheng Han

AU - Tai, Yen Hua

AU - Hsu, Hsiao Hsuan

AU - Cheng, Chun Hu

PY - 2020/12

Y1 - 2020/12

N2 - In this study, the preparation and magnetic properties of Ca–Sr M-type (Ca1-x-yLaxSryFe10.9CozO19) ferrire magnets were investigated. A M-type singlephase calcined powder was synthesized with a composition of x = 0.45, y = 0.18 and z = 0. And a very high magnetic properties of Br = 5425Gauss and iHc = 4602Oe were obtained by the thermal annealing and secondary fine-milling method in the sintered magnets. The magnetic properties greats exceeds that of traditional Sr–La–Co M-type ferrite, which has been the highest grade M-type hard ferrite. By use of the innovative post-processing method, the improvement could be attributed to about 4% and 0.8% increase in motor torque and motor efficiency in comparison to that of conventional process, which will eventually be used in high-efficiency motors.

AB - In this study, the preparation and magnetic properties of Ca–Sr M-type (Ca1-x-yLaxSryFe10.9CozO19) ferrire magnets were investigated. A M-type singlephase calcined powder was synthesized with a composition of x = 0.45, y = 0.18 and z = 0. And a very high magnetic properties of Br = 5425Gauss and iHc = 4602Oe were obtained by the thermal annealing and secondary fine-milling method in the sintered magnets. The magnetic properties greats exceeds that of traditional Sr–La–Co M-type ferrite, which has been the highest grade M-type hard ferrite. By use of the innovative post-processing method, the improvement could be attributed to about 4% and 0.8% increase in motor torque and motor efficiency in comparison to that of conventional process, which will eventually be used in high-efficiency motors.

KW - Ca–Sr based

KW - Hard ferrite

KW - Iron oxide powder (FeO)

KW - Motor

KW - Secondary fine-milling

KW - Thermal annealing

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DO - 10.1016/j.rinma.2020.100150

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SN - 2590-048X

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JO - Results in Materials

JF - Results in Materials

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ER -

Preparation and magnetic properties of high performance Ca–Sr based M-type hexagonal ferrites

Abstract

Keywords

ASJC Scopus subject areas

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