High-Coercivity Fe-Co Nanoparticles Prepared by Pulsed Arc Plasma Deposition

Daiki Horiyama; Masashi Matsuura; Tetsuro Yamamoto; Nobuki Tezuka; Satoshi Sugimoto

doi:10.2320/matertrans.MAW201510

High-Coercivity Fe-Co Nanoparticles Prepared by Pulsed Arc Plasma Deposition

Daiki Horiyama, Masashi Matsuura, Tetsuro Yamamoto, Nobuki Tezuka, Satoshi Sugimoto

ENG - Materials Science

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

2 Citations (Scopus)

Abstract

Fe-Co nanoparticles were prepared on SiO₂ nanoparticles by a pulsed arc plasma deposition (APD) method and the influence of discharge count during APD on the microstructure and magnetic properties of the nanoparticles was investigated. When the discharge count was 300 shots, the average particle size (d₅₀) of Fe-Co was 3.7nm and an unusually high coercivity (H_c) of 300 kA•m^-1 was obtained. The average particle size increased and the coercivity decreased with increasing discharge count. Fe-Co nanoparticles deposited on C nanoparticles using a discharge count of 300 shots exhibited a lower coercivity than that of Fe-Co nanoparticles deposited on SiO₂ nanoparticles.

Original language	English
Pages (from-to)	207-211
Number of pages	5
Journal	Materials Transactions
Volume	57
Issue number	2
DOIs	https://doi.org/10.2320/matertrans.MAW201510
Publication status	Published - 2016

Keywords

Coercivity
Iron-cobalt nanoparticles
Pulsed arc plasma deposition

ASJC Scopus subject areas

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

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title = "High-Coercivity Fe-Co Nanoparticles Prepared by Pulsed Arc Plasma Deposition",

abstract = "Fe-Co nanoparticles were prepared on SiO2 nanoparticles by a pulsed arc plasma deposition (APD) method and the influence of discharge count during APD on the microstructure and magnetic properties of the nanoparticles was investigated. When the discharge count was 300 shots, the average particle size (d50) of Fe-Co was 3.7nm and an unusually high coercivity (Hc) of 300 kA•m-1 was obtained. The average particle size increased and the coercivity decreased with increasing discharge count. Fe-Co nanoparticles deposited on C nanoparticles using a discharge count of 300 shots exhibited a lower coercivity than that of Fe-Co nanoparticles deposited on SiO2 nanoparticles.",

keywords = "Coercivity, Iron-cobalt nanoparticles, Pulsed arc plasma deposition",

author = "Daiki Horiyama and Masashi Matsuura and Tetsuro Yamamoto and Nobuki Tezuka and Satoshi Sugimoto",

note = "Publisher Copyright: {\textcopyright} 2016 The Japan Institute of Metals and Materials.",

year = "2016",

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language = "English",

volume = "57",

pages = "207--211",

journal = "Materials Transactions",

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T1 - High-Coercivity Fe-Co Nanoparticles Prepared by Pulsed Arc Plasma Deposition

AU - Horiyama, Daiki

AU - Matsuura, Masashi

AU - Yamamoto, Tetsuro

AU - Tezuka, Nobuki

AU - Sugimoto, Satoshi

PY - 2016

Y1 - 2016

N2 - Fe-Co nanoparticles were prepared on SiO2 nanoparticles by a pulsed arc plasma deposition (APD) method and the influence of discharge count during APD on the microstructure and magnetic properties of the nanoparticles was investigated. When the discharge count was 300 shots, the average particle size (d50) of Fe-Co was 3.7nm and an unusually high coercivity (Hc) of 300 kA•m-1 was obtained. The average particle size increased and the coercivity decreased with increasing discharge count. Fe-Co nanoparticles deposited on C nanoparticles using a discharge count of 300 shots exhibited a lower coercivity than that of Fe-Co nanoparticles deposited on SiO2 nanoparticles.

AB - Fe-Co nanoparticles were prepared on SiO2 nanoparticles by a pulsed arc plasma deposition (APD) method and the influence of discharge count during APD on the microstructure and magnetic properties of the nanoparticles was investigated. When the discharge count was 300 shots, the average particle size (d50) of Fe-Co was 3.7nm and an unusually high coercivity (Hc) of 300 kA•m-1 was obtained. The average particle size increased and the coercivity decreased with increasing discharge count. Fe-Co nanoparticles deposited on C nanoparticles using a discharge count of 300 shots exhibited a lower coercivity than that of Fe-Co nanoparticles deposited on SiO2 nanoparticles.

KW - Coercivity

KW - Iron-cobalt nanoparticles

KW - Pulsed arc plasma deposition

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High-Coercivity Fe-Co Nanoparticles Prepared by Pulsed Arc Plasma Deposition

Abstract

Keywords

ASJC Scopus subject areas

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