Synthesis and characterization of nanoparticles of Alnico alloys

Xingguo Li; Akihiko Chiba; Masayosi Sato; Seiki Takahashi

doi:10.1016/S1359-6454(03)00423-3

Synthesis and characterization of nanoparticles of Alnico alloys

Xingguo Li, Akihiko Chiba, Masayosi Sato, Seiki Takahashi

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

16 Citations (Scopus)

Abstract

Nanoparticles of Alnico 4 (Fe-12% Al-28% Ni-5% Co) and Alnico 5 (Fe-8% Al-14% Ni-24% Co-3%-Cu) alloys with the mean particle diameter from 12 to 34 nm were successfully produced by hydrogen plasma metal reaction. The particle features, oxidization behavior and magnetic properties were studied. The nanoparticles have the same crystalline structure and lattice parameter as the master alloys, and a new phase or non-equilibrium phase has not been observed. With an increase in the mean particle, the oxidization temperature and the saturation magnetization are decreased, but the coercive force is enhanced.

Original language	English
Pages (from-to)	5593-5600
Number of pages	8
Journal	Acta Materialia
Volume	51
Issue number	18
DOIs	https://doi.org/10.1016/S1359-6454(03)00423-3
Publication status	Published - 2003 Oct 20
Externally published	Yes

Keywords

Alnico alloy
Magnetic properties
Morphology
Nanoparticles
Oxidation
Plasma

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

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10.1016/S1359-6454(03)00423-3

Cite this

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title = "Synthesis and characterization of nanoparticles of Alnico alloys",

abstract = "Nanoparticles of Alnico 4 (Fe-12% Al-28% Ni-5% Co) and Alnico 5 (Fe-8% Al-14% Ni-24% Co-3%-Cu) alloys with the mean particle diameter from 12 to 34 nm were successfully produced by hydrogen plasma metal reaction. The particle features, oxidization behavior and magnetic properties were studied. The nanoparticles have the same crystalline structure and lattice parameter as the master alloys, and a new phase or non-equilibrium phase has not been observed. With an increase in the mean particle, the oxidization temperature and the saturation magnetization are decreased, but the coercive force is enhanced.",

keywords = "Alnico alloy, Magnetic properties, Morphology, Nanoparticles, Oxidation, Plasma",

author = "Xingguo Li and Akihiko Chiba and Masayosi Sato and Seiki Takahashi",

note = "Funding Information: This work was supported by NSFC (nos. 20025103 and 50274002) and MOST of China (no. 2001CB610503).",

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TY - JOUR

T1 - Synthesis and characterization of nanoparticles of Alnico alloys

AU - Li, Xingguo

AU - Chiba, Akihiko

AU - Sato, Masayosi

AU - Takahashi, Seiki

N1 - Funding Information: This work was supported by NSFC (nos. 20025103 and 50274002) and MOST of China (no. 2001CB610503).

PY - 2003/10/20

Y1 - 2003/10/20

N2 - Nanoparticles of Alnico 4 (Fe-12% Al-28% Ni-5% Co) and Alnico 5 (Fe-8% Al-14% Ni-24% Co-3%-Cu) alloys with the mean particle diameter from 12 to 34 nm were successfully produced by hydrogen plasma metal reaction. The particle features, oxidization behavior and magnetic properties were studied. The nanoparticles have the same crystalline structure and lattice parameter as the master alloys, and a new phase or non-equilibrium phase has not been observed. With an increase in the mean particle, the oxidization temperature and the saturation magnetization are decreased, but the coercive force is enhanced.

AB - Nanoparticles of Alnico 4 (Fe-12% Al-28% Ni-5% Co) and Alnico 5 (Fe-8% Al-14% Ni-24% Co-3%-Cu) alloys with the mean particle diameter from 12 to 34 nm were successfully produced by hydrogen plasma metal reaction. The particle features, oxidization behavior and magnetic properties were studied. The nanoparticles have the same crystalline structure and lattice parameter as the master alloys, and a new phase or non-equilibrium phase has not been observed. With an increase in the mean particle, the oxidization temperature and the saturation magnetization are decreased, but the coercive force is enhanced.

KW - Alnico alloy

KW - Magnetic properties

KW - Morphology

KW - Nanoparticles

KW - Oxidation

KW - Plasma

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EP - 5600

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 18

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Synthesis and characterization of nanoparticles of Alnico alloys

Abstract

Keywords

ASJC Scopus subject areas

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