Tuning the Curie temperature of Fe90Sc10 nanoglasses by varying the volume fraction and the composition of the interfaces

Chaomin Wang; Xiaoke Mu; Mohammed Reda Chellali; Askar Kilmametov; Yulia Ivanisenko; Herbert Gleiter; Horst Hahn

doi:10.1016/j.scriptamat.2018.09.025

Tuning the Curie temperature of Fe₉₀Sc₁₀ nanoglasses by varying the volume fraction and the composition of the interfaces

Chaomin Wang
, Xiaoke Mu
, Mohammed Reda Chellali
, Askar Kilmametov
, Yulia Ivanisenko
, Herbert Gleiter
, Horst Hahn

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

17 Scopus citations

Abstract

Fe₉₀Sc₁₀ nanoglass was produced by consolidating Fe₉₀Sc₁₀ glassy nanoparticles (GNp) into bulk solid material. The average diameters of the GNp, which were produced by inert gas condensation, decreased as He pressure decreased. The volume fraction of the interfaces within the nanoglass increased as the diameters of the primary GNp decreased. The segregation of the Fe atoms at the surfaces of the GNp varied, so the composition of the interfaces was different. As the Curie temperature of Fe₉₀Sc₁₀ nanoglass is primarily dependent on the volume fraction and the composition of the interfaces, the Curie temperature increased as He pressure decreased.

Original language	English (US)
Pages (from-to)	109-112
Number of pages	4
Journal	Scripta Materialia
Volume	159
DOIs	https://doi.org/10.1016/j.scriptamat.2018.09.025
State	Published - Jan 15 2019
Externally published	Yes

Keywords

Curie temperature
Glassy nanoparticles
Interfaces
Nanoglass
Surface segregation

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2018.09.025

Cite this

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title = "Tuning the Curie temperature of Fe90Sc10 nanoglasses by varying the volume fraction and the composition of the interfaces",

abstract = "Fe90Sc10 nanoglass was produced by consolidating Fe90Sc10 glassy nanoparticles (GNp) into bulk solid material. The average diameters of the GNp, which were produced by inert gas condensation, decreased as He pressure decreased. The volume fraction of the interfaces within the nanoglass increased as the diameters of the primary GNp decreased. The segregation of the Fe atoms at the surfaces of the GNp varied, so the composition of the interfaces was different. As the Curie temperature of Fe90Sc10 nanoglass is primarily dependent on the volume fraction and the composition of the interfaces, the Curie temperature increased as He pressure decreased.",

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author = "Chaomin Wang and Xiaoke Mu and Chellali, \{Mohammed Reda\} and Askar Kilmametov and Yulia Ivanisenko and Herbert Gleiter and Horst Hahn",

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AU - Wang, Chaomin

AU - Mu, Xiaoke

AU - Chellali, Mohammed Reda

AU - Kilmametov, Askar

AU - Ivanisenko, Yulia

AU - Gleiter, Herbert

AU - Hahn, Horst

PY - 2019/1/15

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AB - Fe90Sc10 nanoglass was produced by consolidating Fe90Sc10 glassy nanoparticles (GNp) into bulk solid material. The average diameters of the GNp, which were produced by inert gas condensation, decreased as He pressure decreased. The volume fraction of the interfaces within the nanoglass increased as the diameters of the primary GNp decreased. The segregation of the Fe atoms at the surfaces of the GNp varied, so the composition of the interfaces was different. As the Curie temperature of Fe90Sc10 nanoglass is primarily dependent on the volume fraction and the composition of the interfaces, the Curie temperature increased as He pressure decreased.

KW - Curie temperature

KW - Glassy nanoparticles

KW - Interfaces

KW - Nanoglass

KW - Surface segregation

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