W, La 添加 Sm2Fe17N3 粉末の磁気特性と微細組織

Masashi Matsuura; Shiho Suzuki; Kuniko Yamamoto; Nobuki Tezuka; Satoshi Sugimoto

doi:10.2497/jjspm.67.682

W, La 添加 Sm₂Fe₁₇N₃ 粉末の磁気特性と微細組織

Translated title of the contribution: Magnetic properties and microstructure of w, la added Sm₂Fe₁₇N₃ powders

Masashi Matsuura, Shiho Suzuki, Kuniko Yamamoto, Nobuki Tezuka, Satoshi Sugimoto

ENG - Materials Science

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

2 Citations (Scopus)

Abstract

The magnetic properties and microstructure of the W and/or La added Sm-Fe-N magnetic powders were investigated. The W and La+W added Sm-Fe-N powders exhibited higher coercivity of 2.1 and 2.0 MAm^-1 than that of the powder without La and W addition (1.5 MAm^-1), respectively, while the La added powder had lower coercivity of 1.0 MAm^-1. Initial recoil curves of each powders indicated that volume fraction of single domain particles was higher in the W and La+W added powders than in the La added powder, and the coercivity of these powders strongly depended on particles size. The lattice constant slightly changed with La and W addition. Microstructural observation revealed that W tended to condense in the small particle, and the W was detected from Sm₂Fe₁₇N₃(0I1) plane.

Translated title of the contribution	Magnetic properties and microstructure of w, la added Sm₂Fe₁₇N₃ powders
Original language	Japanese
Pages (from-to)	682-687
Number of pages	6
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	67
Issue number	12
DOIs	https://doi.org/10.2497/jjspm.67.682
Publication status	Published - 2020

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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title = "W, La 添加 Sm2Fe17N3 粉末の磁気特性と微細組織",

abstract = "The magnetic properties and microstructure of the W and/or La added Sm-Fe-N magnetic powders were investigated. The W and La+W added Sm-Fe-N powders exhibited higher coercivity of 2.1 and 2.0 MAm-1 than that of the powder without La and W addition (1.5 MAm-1), respectively, while the La added powder had lower coercivity of 1.0 MAm-1. Initial recoil curves of each powders indicated that volume fraction of single domain particles was higher in the W and La+W added powders than in the La added powder, and the coercivity of these powders strongly depended on particles size. The lattice constant slightly changed with La and W addition. Microstructural observation revealed that W tended to condense in the small particle, and the W was detected from Sm2Fe17N3(0I1) plane.",

keywords = "La and/or W added Sm-Fe-N powder, Magnetic properties, Microstructure",

author = "Masashi Matsuura and Shiho Suzuki and Kuniko Yamamoto and Nobuki Tezuka and Satoshi Sugimoto",

note = "Publisher Copyright: {\textcopyright} 2020 Japan Society of Powder and Powder Metallurgy",

year = "2020",

doi = "10.2497/jjspm.67.682",

language = "Japanese",

volume = "67",

pages = "682--687",

journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

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T1 - W, La 添加 Sm2Fe17N3 粉末の磁気特性と微細組織

AU - Matsuura, Masashi

AU - Suzuki, Shiho

AU - Yamamoto, Kuniko

AU - Tezuka, Nobuki

AU - Sugimoto, Satoshi

PY - 2020

Y1 - 2020

N2 - The magnetic properties and microstructure of the W and/or La added Sm-Fe-N magnetic powders were investigated. The W and La+W added Sm-Fe-N powders exhibited higher coercivity of 2.1 and 2.0 MAm-1 than that of the powder without La and W addition (1.5 MAm-1), respectively, while the La added powder had lower coercivity of 1.0 MAm-1. Initial recoil curves of each powders indicated that volume fraction of single domain particles was higher in the W and La+W added powders than in the La added powder, and the coercivity of these powders strongly depended on particles size. The lattice constant slightly changed with La and W addition. Microstructural observation revealed that W tended to condense in the small particle, and the W was detected from Sm2Fe17N3(0I1) plane.

AB - The magnetic properties and microstructure of the W and/or La added Sm-Fe-N magnetic powders were investigated. The W and La+W added Sm-Fe-N powders exhibited higher coercivity of 2.1 and 2.0 MAm-1 than that of the powder without La and W addition (1.5 MAm-1), respectively, while the La added powder had lower coercivity of 1.0 MAm-1. Initial recoil curves of each powders indicated that volume fraction of single domain particles was higher in the W and La+W added powders than in the La added powder, and the coercivity of these powders strongly depended on particles size. The lattice constant slightly changed with La and W addition. Microstructural observation revealed that W tended to condense in the small particle, and the W was detected from Sm2Fe17N3(0I1) plane.

KW - La and/or W added Sm-Fe-N powder

KW - Magnetic properties

KW - Microstructure

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JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

SN - 0532-8799

IS - 12

ER -

W, La 添加 Sm₂Fe₁₇N₃ 粉末の磁気特性と微細組織

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