Relationship between microstructures and soft magnetic properties of simultaneously P and Cu-added Fe-Nb-B ribbon alloys

Kunio Yubuta; Enrico Mund; Akihiro Makino; Akihisa Inoue

doi:10.2320/matertrans.MRA2008134

Relationship between microstructures and soft magnetic properties of simultaneously P and Cu-added Fe-Nb-B ribbon alloys

Kunio Yubuta, Enrico Mund, Akihiro Makino, Akihisa Inoue

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

5 Citations (Scopus)

Abstract

The additional effect of P and Cu on the magnetic properties of Fe-Nb-B nanocrystalline soft magnetic alloys was investigated from the viewpoint of microstructures. Mean size of α-Fe grain for both Fe_83.8Nb _6.6B_9.6, and Fe_83.7Nb_6.6B _8.6P₁Cu_0.1 ribbon alloys are measured to be about 8.5 nm, and size distribution of those are measured to be 0.391 and 0.236. respectively, using an oval approximation for shape of α-Fe grains. Values of coercivity for Fe_83.8Nb_6.6B_9.6 and Fe_83.7Nb_6.6B_8.6P₁Cu_0.1 alloys calculated using a two-phase random anisotropy model are 6.73 and 4.93 A·m^-1. and measured ones are 8.64 and 3.74 A·m ^-1. respectively. The improvement probably originates from the decrease in the distribution of the α-Fe grain size in the crystallized structure by the simultaneous addition.

Original language	English
Pages (from-to)	1780-1784
Number of pages	5
Journal	Materials Transactions
Volume	49
Issue number	8
DOIs	https://doi.org/10.2320/matertrans.MRA2008134
Publication status	Published - 2008 Aug

Keywords

Coercivity
Grain size distribution
Nanocrystalline soft magnetic alloy
Random anisotmpy model

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Relationship between microstructures and soft magnetic properties of simultaneously P and Cu-added Fe-Nb-B ribbon alloys",

abstract = "The additional effect of P and Cu on the magnetic properties of Fe-Nb-B nanocrystalline soft magnetic alloys was investigated from the viewpoint of microstructures. Mean size of α-Fe grain for both Fe83.8Nb 6.6B9.6, and Fe83.7Nb6.6B 8.6P1Cu0.1 ribbon alloys are measured to be about 8.5 nm, and size distribution of those are measured to be 0.391 and 0.236. respectively, using an oval approximation for shape of α-Fe grains. Values of coercivity for Fe83.8Nb6.6B9.6 and Fe83.7Nb6.6B8.6P1Cu0.1 alloys calculated using a two-phase random anisotropy model are 6.73 and 4.93 A·m-1. and measured ones are 8.64 and 3.74 A·m -1. respectively. The improvement probably originates from the decrease in the distribution of the α-Fe grain size in the crystallized structure by the simultaneous addition.",

keywords = "Coercivity, Grain size distribution, Nanocrystalline soft magnetic alloy, Random anisotmpy model",

author = "Kunio Yubuta and Enrico Mund and Akihiro Makino and Akihisa Inoue",

year = "2008",

month = aug,

doi = "10.2320/matertrans.MRA2008134",

language = "English",

volume = "49",

pages = "1780--1784",

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AU - Yubuta, Kunio

AU - Mund, Enrico

AU - Makino, Akihiro

AU - Inoue, Akihisa

PY - 2008/8

Y1 - 2008/8

N2 - The additional effect of P and Cu on the magnetic properties of Fe-Nb-B nanocrystalline soft magnetic alloys was investigated from the viewpoint of microstructures. Mean size of α-Fe grain for both Fe83.8Nb 6.6B9.6, and Fe83.7Nb6.6B 8.6P1Cu0.1 ribbon alloys are measured to be about 8.5 nm, and size distribution of those are measured to be 0.391 and 0.236. respectively, using an oval approximation for shape of α-Fe grains. Values of coercivity for Fe83.8Nb6.6B9.6 and Fe83.7Nb6.6B8.6P1Cu0.1 alloys calculated using a two-phase random anisotropy model are 6.73 and 4.93 A·m-1. and measured ones are 8.64 and 3.74 A·m -1. respectively. The improvement probably originates from the decrease in the distribution of the α-Fe grain size in the crystallized structure by the simultaneous addition.

AB - The additional effect of P and Cu on the magnetic properties of Fe-Nb-B nanocrystalline soft magnetic alloys was investigated from the viewpoint of microstructures. Mean size of α-Fe grain for both Fe83.8Nb 6.6B9.6, and Fe83.7Nb6.6B 8.6P1Cu0.1 ribbon alloys are measured to be about 8.5 nm, and size distribution of those are measured to be 0.391 and 0.236. respectively, using an oval approximation for shape of α-Fe grains. Values of coercivity for Fe83.8Nb6.6B9.6 and Fe83.7Nb6.6B8.6P1Cu0.1 alloys calculated using a two-phase random anisotropy model are 6.73 and 4.93 A·m-1. and measured ones are 8.64 and 3.74 A·m -1. respectively. The improvement probably originates from the decrease in the distribution of the α-Fe grain size in the crystallized structure by the simultaneous addition.

KW - Coercivity

KW - Grain size distribution

KW - Nanocrystalline soft magnetic alloy

KW - Random anisotmpy model

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Relationship between microstructures and soft magnetic properties of simultaneously P and Cu-added Fe-Nb-B ribbon alloys

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