Effects of Fe-Ni alloy nanoparticles on the mechanical properties and microstructures of Al 2O 3/Fe-Ni nanocomposites prepared by rapid sintering

Young In Lee; Jun Tae Lee; Yong Ho Choa

doi:10.1016/j.ceramint.2012.02.011

Effects of Fe-Ni alloy nanoparticles on the mechanical properties and microstructures of Al ₂O ₃/Fe-Ni nanocomposites prepared by rapid sintering

Young In Lee, Jun Tae Lee, Yong Ho Choa

Dept. of Materials Science & Engineering

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

11 Scopus citations

Abstract

A high frequency induction heated sintering (HFIHS) process was applied to fabricate dense Al ₂O ₃ reinforced with Fe-Ni magnetic metal dispersion particles. The process is based on the reduction of metal oxide particles immediately prior to sintering. The synthesized Al ₂O ₃/Fe-Ni nanocomposite powders are formed directly from the selective reduction of metal oxide powders, including NiO and Fe ₂O ₃. A dense Al ₂O ₃/Fe-Ni nanocomposite was fabricated using the HFIHS method with an extremely high heating rate of 2000°C/min. The phase identification of nanocomposite powders and sintered specimens was determined by X-ray diffraction. Three-point bending tests and Vickers hardness experiments were performed to investigate the mechanical properties of the Al ₂O ₃/Fe-Ni nanocomposites and the relationship between microstructure and mechanical properties was investigated using TEM and SEM supported with EDX.

Original language	English
Pages (from-to)	4305-4312
Number of pages	8
Journal	Ceramics International
Volume	38
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2012.02.011
State	Published - Jul 2012

Keywords

B. Nanocomposite
C. Mechanical properties
Fe-Ni dispersion particle
FeAl O spinel
High frequency induction heated sintering (HFIHS)
Microstructure

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10.1016/j.ceramint.2012.02.011

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title = "Effects of Fe-Ni alloy nanoparticles on the mechanical properties and microstructures of Al 2O 3/Fe-Ni nanocomposites prepared by rapid sintering",

abstract = "A high frequency induction heated sintering (HFIHS) process was applied to fabricate dense Al 2O 3 reinforced with Fe-Ni magnetic metal dispersion particles. The process is based on the reduction of metal oxide particles immediately prior to sintering. The synthesized Al 2O 3/Fe-Ni nanocomposite powders are formed directly from the selective reduction of metal oxide powders, including NiO and Fe 2O 3. A dense Al 2O 3/Fe-Ni nanocomposite was fabricated using the HFIHS method with an extremely high heating rate of 2000°C/min. The phase identification of nanocomposite powders and sintered specimens was determined by X-ray diffraction. Three-point bending tests and Vickers hardness experiments were performed to investigate the mechanical properties of the Al 2O 3/Fe-Ni nanocomposites and the relationship between microstructure and mechanical properties was investigated using TEM and SEM supported with EDX.",

keywords = "B. Nanocomposite, C. Mechanical properties, Fe-Ni dispersion particle, FeAl O spinel, High frequency induction heated sintering (HFIHS), Microstructure",

author = "Lee, \{Young In\} and Lee, \{Jun Tae\} and Choa, \{Yong Ho\}",

year = "2012",

month = jul,

doi = "10.1016/j.ceramint.2012.02.011",

language = "English",

volume = "38",

pages = "4305--4312",

journal = "Ceramics International",

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T1 - Effects of Fe-Ni alloy nanoparticles on the mechanical properties and microstructures of Al 2O 3/Fe-Ni nanocomposites prepared by rapid sintering

AU - Lee, Young In

AU - Lee, Jun Tae

AU - Choa, Yong Ho

PY - 2012/7

Y1 - 2012/7

N2 - A high frequency induction heated sintering (HFIHS) process was applied to fabricate dense Al 2O 3 reinforced with Fe-Ni magnetic metal dispersion particles. The process is based on the reduction of metal oxide particles immediately prior to sintering. The synthesized Al 2O 3/Fe-Ni nanocomposite powders are formed directly from the selective reduction of metal oxide powders, including NiO and Fe 2O 3. A dense Al 2O 3/Fe-Ni nanocomposite was fabricated using the HFIHS method with an extremely high heating rate of 2000°C/min. The phase identification of nanocomposite powders and sintered specimens was determined by X-ray diffraction. Three-point bending tests and Vickers hardness experiments were performed to investigate the mechanical properties of the Al 2O 3/Fe-Ni nanocomposites and the relationship between microstructure and mechanical properties was investigated using TEM and SEM supported with EDX.

AB - A high frequency induction heated sintering (HFIHS) process was applied to fabricate dense Al 2O 3 reinforced with Fe-Ni magnetic metal dispersion particles. The process is based on the reduction of metal oxide particles immediately prior to sintering. The synthesized Al 2O 3/Fe-Ni nanocomposite powders are formed directly from the selective reduction of metal oxide powders, including NiO and Fe 2O 3. A dense Al 2O 3/Fe-Ni nanocomposite was fabricated using the HFIHS method with an extremely high heating rate of 2000°C/min. The phase identification of nanocomposite powders and sintered specimens was determined by X-ray diffraction. Three-point bending tests and Vickers hardness experiments were performed to investigate the mechanical properties of the Al 2O 3/Fe-Ni nanocomposites and the relationship between microstructure and mechanical properties was investigated using TEM and SEM supported with EDX.

KW - B. Nanocomposite

KW - C. Mechanical properties

KW - Fe-Ni dispersion particle

KW - FeAl O spinel

KW - High frequency induction heated sintering (HFIHS)

KW - Microstructure

UR - http://www.scopus.com/inward/record.url?scp=84862811665&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2012.02.011

DO - 10.1016/j.ceramint.2012.02.011

M3 - Article

AN - SCOPUS:84862811665

SN - 0272-8842

VL - 38

SP - 4305

EP - 4312

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Effects of Fe-Ni alloy nanoparticles on the mechanical properties and microstructures of Al ₂O ₃/Fe-Ni nanocomposites prepared by rapid sintering

Abstract

Keywords

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