Crystalline approximant of amorphous Fe-Si-B structures

Akihiko Hirata

doi:10.2320/matertrans.MD201711

Crystalline approximant of amorphous Fe-Si-B structures

Akihiko Hirata^*

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

We have examined the local atomic configurations of amorphous Fe-Si-B alloys by means of electron diffraction pair-distribution-function analysis and compared them with those of a metastable sigma phase formed during the crystallization process. We found a great structural similarity, not only at short range but also at medium range up to 1.0 nm, between amorphous Fe-Si-B and sigma phase structures. The results imply that the sigma phase structure can be regarded as a good crystalline approximant for the glass structures in this alloy system. The connections of coordination polyhedra in the sigma phase structure were also discussed.

Original language	English
Pages (from-to)	1047-1050
Number of pages	4
Journal	Materials Transactions
Volume	59
Issue number	7
DOIs	https://doi.org/10.2320/matertrans.MD201711
Publication status	Published - 2018
Externally published	Yes

Keywords

Amorphous alloys
Electron diffraction
Local structures

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.2320/matertrans.MD201711

Cite this

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title = "Crystalline approximant of amorphous Fe-Si-B structures",

abstract = "We have examined the local atomic configurations of amorphous Fe-Si-B alloys by means of electron diffraction pair-distribution-function analysis and compared them with those of a metastable sigma phase formed during the crystallization process. We found a great structural similarity, not only at short range but also at medium range up to 1.0 nm, between amorphous Fe-Si-B and sigma phase structures. The results imply that the sigma phase structure can be regarded as a good crystalline approximant for the glass structures in this alloy system. The connections of coordination polyhedra in the sigma phase structure were also discussed.",

keywords = "Amorphous alloys, Electron diffraction, Local structures",

author = "Akihiko Hirata",

note = "Funding Information: This work was partially sponsored by Fusion Research Funds from the “World Premier International Research Center Initiative for Atoms, Molecules, and Materials” program of the MEXT of Japan, JSPS KAKENHI (grant numbers JP17H01325 and JP26310205). The author gratefully acknowledges Prof. Yoshihiko Hirotsu at Osaka University for the development of electron diffraction intensity analysis techniques and the provision of TEM equipments. Publisher Copyright: {\textcopyright} 2018 The Japan Institute of Metals and Materials.",

year = "2018",

doi = "10.2320/matertrans.MD201711",

language = "English",

volume = "59",

pages = "1047--1050",

journal = "Materials Transactions",

issn = "1345-9678",

publisher = "Japan Institute of Metals (JIM)",

number = "7",

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TY - JOUR

T1 - Crystalline approximant of amorphous Fe-Si-B structures

AU - Hirata, Akihiko

N1 - Funding Information: This work was partially sponsored by Fusion Research Funds from the “World Premier International Research Center Initiative for Atoms, Molecules, and Materials” program of the MEXT of Japan, JSPS KAKENHI (grant numbers JP17H01325 and JP26310205). The author gratefully acknowledges Prof. Yoshihiko Hirotsu at Osaka University for the development of electron diffraction intensity analysis techniques and the provision of TEM equipments. Publisher Copyright: © 2018 The Japan Institute of Metals and Materials.

PY - 2018

Y1 - 2018

N2 - We have examined the local atomic configurations of amorphous Fe-Si-B alloys by means of electron diffraction pair-distribution-function analysis and compared them with those of a metastable sigma phase formed during the crystallization process. We found a great structural similarity, not only at short range but also at medium range up to 1.0 nm, between amorphous Fe-Si-B and sigma phase structures. The results imply that the sigma phase structure can be regarded as a good crystalline approximant for the glass structures in this alloy system. The connections of coordination polyhedra in the sigma phase structure were also discussed.

AB - We have examined the local atomic configurations of amorphous Fe-Si-B alloys by means of electron diffraction pair-distribution-function analysis and compared them with those of a metastable sigma phase formed during the crystallization process. We found a great structural similarity, not only at short range but also at medium range up to 1.0 nm, between amorphous Fe-Si-B and sigma phase structures. The results imply that the sigma phase structure can be regarded as a good crystalline approximant for the glass structures in this alloy system. The connections of coordination polyhedra in the sigma phase structure were also discussed.

KW - Amorphous alloys

KW - Electron diffraction

KW - Local structures

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DO - 10.2320/matertrans.MD201711

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VL - 59

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EP - 1050

JO - Materials Transactions

JF - Materials Transactions

IS - 7

ER -

Crystalline approximant of amorphous Fe-Si-B structures

Abstract

Keywords

ASJC Scopus subject areas

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