Phase change in CoTi₂ induced by MeV electron irradiation

Zensho, Akihiro; Sato, Kazuhisa; Yasuda, Hidehiro et al.

Philosophical Magazine, 2018, 98(21), 1961-1974

Number of Access:228（2025-08-14 12:35 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/97377

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Title
Phase change in CoTi₂ induced by MeV electron irradiation
Creator
CreatorName
Zensho, Akihiro
NRID
1000070314424 1000070314424
ORCID
0000-0001-9078-2541 0000-0001-9078-2541
researchmap permalink
read0158304 read0158304
Scopus Author ID
55552977400 55552977400
CreatorName
Sato, Kazuhisa
NRID
1000060210259 1000060210259
CreatorName
Yasuda, Hidehiro
NRID
1000010024366 1000010024366
researchmap permalink
read0014257 read0014257
CreatorName
Mori, Hirotaro
Subject
Electron irradiation
high-voltage electron microscopy
in situ electron microscopy
intermetallic compounds
partial crystallisation
Description
This is an Accepted Manuscript of an article published by Taylor & Francis in Philosophical Magazine on 23 July 2018, available at https://doi.org/10.1080/14786435.2018.1468941.
Abstract
The phase change induced by MeV electron irradiation in the intermetallic compound E9₃–CoTi₂ was investigated using high-voltage electron microscopy. Under MeV electron irradiation, CoTi₂ was first transformed into an amorphous phase and, with continued irradiation, crystallite formation in the amorphous phase (i.e. formation of crystallites of a solid-solution phase within the amorphous phase) was induced. The critical temperature for amorphisation was around 250 K. The total dose (dpa) required for crystallite formation (i.e. that required for partial crystallisation) was high (i.e. 27–80 dpa) and, even after prolonged irradiation, the amorphous phase was retained in the irradiated sample. Such partial crystallisation behaviour of amorphous Co₃₃Ti₆₇ was clearly different from the crystallisation behaviour (i.e. amorphous-to-solid solution, polymorphous transformation) of amorphous Cr₆₇Ti₃₃ reported in the literature. A possible cause of the difference is discussed.
Publisher
Taylor and Francis Ltd
Source Title
Philosophical Magazine
Volume (Issue)
98(21)
Page
1961-1974
Date of Issued
2018-07-23
Language
English
Handle URL
https://hdl.handle.net/11094/97377
PISSN
14786435
eISSN
14786443
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1080/14786435.2018.1468941
Access Rights
open access
CopyRight
© 2018 Informa UK Limited, trading as Taylor & Francis Group.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article