Processing and magnetic properties of Ni-Fe alloy dispersed alumina nanocomposites

Jai Sung Lee; Sung Tag Oh; Seok Namkung

doi:10.1557/proc-676-y8.40

Processing and magnetic properties of Ni-Fe alloy dispersed alumina nanocomposites

Jai Sung Lee, Sung Tag Oh, Seok Namkung

Dept. of Materials Science & Engineering

Hanyang University

Research output: Contribution to journal › Conference article › peer-review

Abstract

An optimum route to fabricate the Al₂O₃/Ni-Fe alloy nanocomposites with sound microstructure and magnetic properties was investigated. The composites were fabricated by the hot pressing of powder mixtures of Al₂O₃ and nano-sized Ni-Fe alloy, in which the alloy was prepared by solution-chemistry routes using Ni- and Fe-nitrate powders and a subsequent hydrogen reduction process. Microstructural observation of reduced powder mixture revealed that the Ni-Fe alloy particles of about 20 nm in size were homogeneously surrounded Al₂O₃, forming nanocomposite powder. The hot-pressed composite showed improved mechanical properties and magnetic response. The properties are discussed in terms of microstructural characteristics such as the distribution and size of Ni-Fe dispersion.

Original language	English
Pages (from-to)	Y8.40.1-Y8.40.5
Journal	Materials Research Society Symposium - Proceedings
Volume	676
DOIs	https://doi.org/10.1557/proc-676-y8.40
State	Published - 2001
Event	Synthesis, Functional Properties and Applications of Nanostructures - San Francisco, CA, United States Duration: 17 Apr 2001 → 20 Apr 2001

Access to Document

10.1557/proc-676-y8.40

Cite this

@article{abcc195a65f24b33810066ee0e479046,

title = "Processing and magnetic properties of Ni-Fe alloy dispersed alumina nanocomposites",

abstract = "An optimum route to fabricate the Al2O3/Ni-Fe alloy nanocomposites with sound microstructure and magnetic properties was investigated. The composites were fabricated by the hot pressing of powder mixtures of Al2O3 and nano-sized Ni-Fe alloy, in which the alloy was prepared by solution-chemistry routes using Ni- and Fe-nitrate powders and a subsequent hydrogen reduction process. Microstructural observation of reduced powder mixture revealed that the Ni-Fe alloy particles of about 20 nm in size were homogeneously surrounded Al2O3, forming nanocomposite powder. The hot-pressed composite showed improved mechanical properties and magnetic response. The properties are discussed in terms of microstructural characteristics such as the distribution and size of Ni-Fe dispersion.",

author = "Lee, \{Jai Sung\} and Oh, \{Sung Tag\} and Seok Namkung",

year = "2001",

doi = "10.1557/proc-676-y8.40",

language = "English",

volume = "676",

pages = "Y8.40.1--Y8.40.5",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

note = "Synthesis, Functional Properties and Applications of Nanostructures ; Conference date: 17-04-2001 Through 20-04-2001",

}

TY - JOUR

T1 - Processing and magnetic properties of Ni-Fe alloy dispersed alumina nanocomposites

AU - Lee, Jai Sung

AU - Oh, Sung Tag

AU - Namkung, Seok

PY - 2001

Y1 - 2001

N2 - An optimum route to fabricate the Al2O3/Ni-Fe alloy nanocomposites with sound microstructure and magnetic properties was investigated. The composites were fabricated by the hot pressing of powder mixtures of Al2O3 and nano-sized Ni-Fe alloy, in which the alloy was prepared by solution-chemistry routes using Ni- and Fe-nitrate powders and a subsequent hydrogen reduction process. Microstructural observation of reduced powder mixture revealed that the Ni-Fe alloy particles of about 20 nm in size were homogeneously surrounded Al2O3, forming nanocomposite powder. The hot-pressed composite showed improved mechanical properties and magnetic response. The properties are discussed in terms of microstructural characteristics such as the distribution and size of Ni-Fe dispersion.

AB - An optimum route to fabricate the Al2O3/Ni-Fe alloy nanocomposites with sound microstructure and magnetic properties was investigated. The composites were fabricated by the hot pressing of powder mixtures of Al2O3 and nano-sized Ni-Fe alloy, in which the alloy was prepared by solution-chemistry routes using Ni- and Fe-nitrate powders and a subsequent hydrogen reduction process. Microstructural observation of reduced powder mixture revealed that the Ni-Fe alloy particles of about 20 nm in size were homogeneously surrounded Al2O3, forming nanocomposite powder. The hot-pressed composite showed improved mechanical properties and magnetic response. The properties are discussed in terms of microstructural characteristics such as the distribution and size of Ni-Fe dispersion.

UR - http://www.scopus.com/inward/record.url?scp=0035559511&partnerID=8YFLogxK

U2 - 10.1557/proc-676-y8.40

DO - 10.1557/proc-676-y8.40

M3 - Conference article

AN - SCOPUS:0035559511

SN - 0272-9172

VL - 676

SP - Y8.40.1-Y8.40.5

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Synthesis, Functional Properties and Applications of Nanostructures

Y2 - 17 April 2001 through 20 April 2001

ER -

Processing and magnetic properties of Ni-Fe alloy dispersed alumina nanocomposites

Abstract

Access to Document

Other files and links

Fingerprint

Cite this