Characteristics of a Fe-Co Alloy-Dispersed Al2O3 Nanocomposite powder synthesized by a solution chemistry route

Doh Hyung Riu; Young Keun Jeong; Myung Jin Suk; Sung Tag Oh

doi:10.3365/KJMM.2013.51.2.101

Characteristics of a Fe-Co Alloy-Dispersed Al₂O₃ Nanocomposite powder synthesized by a solution chemistry route

Doh Hyung Riu, Young Keun Jeong, Myung Jin Suk, Sung Tag Oh

Dept. of Materials Science & Engineering

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

1 Scopus citations

Abstract

An optimum route to synthesize a Fe-Co alloy-dispersed Al₂O ₃ nanocomposite powders and their magnetic properties were investigated. Nanocomposite powders of Al₂O₃ and Fe-Co alloys were prepared by the solution chemistry method using Al₂O ₃ and metal nitrates powders. Al₂O₃/ZFe-Co alloy powders were sythesized by calcination at 350°C and hydrogen reduction at 700°C of Al₂O₃, Fe- and Ninitrate powders. Microstructural analysis for the nanocomposite powders synthesized by ball milling and a hydrogen reduction process showed that the Fe-Co alloy particles with an average size of 20 nm were well distributed on the surface of the Al₂O₃ powders. The ferromagnetism of the nano-sized Fe-Co alloy contributed to the magnetic properties of the nanocomposite powders. The increase in coercive force was explained as being due to nano-sized particles of the Fe-Co alloy.

Original language	English
Pages (from-to)	101-104
Number of pages	4
Journal	Journal of Korean Institute of Metals and Materials
Volume	51
Issue number	2
DOIs	https://doi.org/10.3365/KJMM.2013.51.2.101
State	Published - Feb 2013

Keywords

Magnetic properties
Microstructure
Nanostructured materials
Powder processing
X-ray diffraction

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10.3365/KJMM.2013.51.2.101

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title = "Characteristics of a Fe-Co Alloy-Dispersed Al2O3 Nanocomposite powder synthesized by a solution chemistry route",

abstract = "An optimum route to synthesize a Fe-Co alloy-dispersed Al2O 3 nanocomposite powders and their magnetic properties were investigated. Nanocomposite powders of Al2O3 and Fe-Co alloys were prepared by the solution chemistry method using Al2O 3 and metal nitrates powders. Al2O3/ZFe-Co alloy powders were sythesized by calcination at 350°C and hydrogen reduction at 700°C of Al2O3, Fe- and Ninitrate powders. Microstructural analysis for the nanocomposite powders synthesized by ball milling and a hydrogen reduction process showed that the Fe-Co alloy particles with an average size of 20 nm were well distributed on the surface of the Al2O3 powders. The ferromagnetism of the nano-sized Fe-Co alloy contributed to the magnetic properties of the nanocomposite powders. The increase in coercive force was explained as being due to nano-sized particles of the Fe-Co alloy.",

keywords = "Magnetic properties, Microstructure, Nanostructured materials, Powder processing, X-ray diffraction",

author = "Riu, \{Doh Hyung\} and Jeong, \{Young Keun\} and Suk, \{Myung Jin\} and Oh, \{Sung Tag\}",

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volume = "51",

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AU - Riu, Doh Hyung

AU - Jeong, Young Keun

AU - Suk, Myung Jin

AU - Oh, Sung Tag

PY - 2013/2

Y1 - 2013/2

N2 - An optimum route to synthesize a Fe-Co alloy-dispersed Al2O 3 nanocomposite powders and their magnetic properties were investigated. Nanocomposite powders of Al2O3 and Fe-Co alloys were prepared by the solution chemistry method using Al2O 3 and metal nitrates powders. Al2O3/ZFe-Co alloy powders were sythesized by calcination at 350°C and hydrogen reduction at 700°C of Al2O3, Fe- and Ninitrate powders. Microstructural analysis for the nanocomposite powders synthesized by ball milling and a hydrogen reduction process showed that the Fe-Co alloy particles with an average size of 20 nm were well distributed on the surface of the Al2O3 powders. The ferromagnetism of the nano-sized Fe-Co alloy contributed to the magnetic properties of the nanocomposite powders. The increase in coercive force was explained as being due to nano-sized particles of the Fe-Co alloy.

AB - An optimum route to synthesize a Fe-Co alloy-dispersed Al2O 3 nanocomposite powders and their magnetic properties were investigated. Nanocomposite powders of Al2O3 and Fe-Co alloys were prepared by the solution chemistry method using Al2O 3 and metal nitrates powders. Al2O3/ZFe-Co alloy powders were sythesized by calcination at 350°C and hydrogen reduction at 700°C of Al2O3, Fe- and Ninitrate powders. Microstructural analysis for the nanocomposite powders synthesized by ball milling and a hydrogen reduction process showed that the Fe-Co alloy particles with an average size of 20 nm were well distributed on the surface of the Al2O3 powders. The ferromagnetism of the nano-sized Fe-Co alloy contributed to the magnetic properties of the nanocomposite powders. The increase in coercive force was explained as being due to nano-sized particles of the Fe-Co alloy.

KW - Magnetic properties

KW - Microstructure

KW - Nanostructured materials

KW - Powder processing

KW - X-ray diffraction

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Characteristics of a Fe-Co Alloy-Dispersed Al₂O₃ Nanocomposite powder synthesized by a solution chemistry route

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Keywords

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