Composition Dependence of Microstructures formed by Phase Separation in Multi-component Silicate Glass

Suzuki, Masanori; Tanaka, Toshihiro

ISIJ International, 2008, 48(4), 405-411

Number of Access:469（2025-08-13 23:02 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/26391

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Title
Composition Dependence of Microstructures formed by Phase Separation in Multi-component Silicate Glass
Creator
NRID
1000020610728 1000020610728
ORCID
0000-0003-1601-2842 0000-0003-1601-2842
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Scopus Author ID
56297002300 56297002300
CreatorName
Suzuki, Masanori
NRID
1000010179773 1000010179773
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read0013978 read0013978
CreatorName
Tanaka, Toshihiro
Subject
spinodal decomposition
binodal decomposition
SiO_2–CaO–MgO–Na_2O system
Gibbs energy
decomposed microstructure
Abstract
It has been investigated that the correlation between the phase separation and glass compositions in the SiO_2–CaO–MgO–Na_2O quaternary oxide glasses. The metastable miscibility gap and the spinodal region in the quaternary system have been evaluated from Gibbs energies in the metastable liquid phase, on the assumption that the glass in slag systems could be regarded as a super-cooled liquid. The microstructures corresponding to the phase separation in the glasses have been observed using transmission electron microscopy (TEM). Thermodynamic analyses and the experimental studies revealed the existence of a metastable phase separation including spinodal decomposition in the SiO_2–CaO–MgO–Na_2O system. Furthermore, it was found that the size of the decomposed microstructure depended on molar ratio of CaO to MgO in the initial glass composition.
Publisher
日本鉄鋼協会
The Iron and Steel Institute of Japan
ニホン　テッコウ　キョウカイ
Source Title
ISIJ International
Volume (Issue)
48(4)
Page
405-411
Date of Issued
2008
Language
English
Handle URL
https://hdl.handle.net/11094/26391
PISSN
09151559
NCID
AA10680712
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.2355/isijinternational.48.405
Access Rights
open access
CopyRight
© 2008 ISIJ
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article