Crystallization and morphology of glassy sanbornite

Yoshihiro Takahashi; Rie Ihara; Takumi Fujiwara; Minoru Osada

doi:10.4028/www.scientific.net/KEM.485.301

Crystallization and morphology of glassy sanbornite

Yoshihiro Takahashi^*, Rie Ihara, Takumi Fujiwara, Minoru Osada

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Citations (Scopus)

Abstract

We investigated the crystallization and resulting morphology of a stoichiometric barium-silicate glass 1BaO-2SiO₂ (glassy sanbornite) by using transmission electron microscope and Raman spectroscopy. A crystalline aggregate structure consisting of a Ba₅Si₈O₂₁ phase (trunk) and a β-BaSi₂O₅ phase (branch) was observed in the heat-treated glassy sanbornite. The Ba-richer phase of Ba ₅Si₈O₂₁ precipitated prior to the formation of the stoichiometric β-BaSi₂O₅ phase, suggesting the presence of the region in which the Ba ions are enriched or cohesively distributed. A considerable structural similarity between the glassy sanbornite and the Ba₅Si₈O₂₁ phase was also suggested in this study.

Original language	English
Title of host publication	Key Engineering Materials
Pages	301-304
Number of pages	4
Volume	485
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.485.301
Publication status	Published - 2011
Externally published	Yes
Event	30th Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, Japan Duration: 2010 Oct 29 → 2010 Oct 30

Publication series

Name	Key Engineering Materials
Volume	485
ISSN (Print)	10139826

Other

Other	30th Electronics Division Meeting of the Ceramic Society of Japan
Country/Territory	Japan
City	Tokyo
Period	10/10/29 → 10/10/30

Keywords

Crystallization
Raman spectroscopy
Sanbornite
Silicate glass
TEM observation

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.4028/www.scientific.net/KEM.485.301

Cite this

@inproceedings{cb158740f25549daa5c90ba616326cb9,

title = "Crystallization and morphology of glassy sanbornite",

abstract = "We investigated the crystallization and resulting morphology of a stoichiometric barium-silicate glass 1BaO-2SiO2 (glassy sanbornite) by using transmission electron microscope and Raman spectroscopy. A crystalline aggregate structure consisting of a Ba5Si8O21 phase (trunk) and a β-BaSi2O5 phase (branch) was observed in the heat-treated glassy sanbornite. The Ba-richer phase of Ba 5Si8O21 precipitated prior to the formation of the stoichiometric β-BaSi2O5 phase, suggesting the presence of the region in which the Ba ions are enriched or cohesively distributed. A considerable structural similarity between the glassy sanbornite and the Ba5Si8O21 phase was also suggested in this study.",

keywords = "Crystallization, Raman spectroscopy, Sanbornite, Silicate glass, TEM observation",

author = "Yoshihiro Takahashi and Rie Ihara and Takumi Fujiwara and Minoru Osada",

year = "2011",

doi = "10.4028/www.scientific.net/KEM.485.301",

language = "English",

isbn = "9783037851821",

volume = "485",

series = "Key Engineering Materials",

pages = "301--304",

booktitle = "Key Engineering Materials",

note = "30th Electronics Division Meeting of the Ceramic Society of Japan ; Conference date: 29-10-2010 Through 30-10-2010",

}

TY - GEN

T1 - Crystallization and morphology of glassy sanbornite

AU - Takahashi, Yoshihiro

AU - Ihara, Rie

AU - Fujiwara, Takumi

AU - Osada, Minoru

PY - 2011

Y1 - 2011

N2 - We investigated the crystallization and resulting morphology of a stoichiometric barium-silicate glass 1BaO-2SiO2 (glassy sanbornite) by using transmission electron microscope and Raman spectroscopy. A crystalline aggregate structure consisting of a Ba5Si8O21 phase (trunk) and a β-BaSi2O5 phase (branch) was observed in the heat-treated glassy sanbornite. The Ba-richer phase of Ba 5Si8O21 precipitated prior to the formation of the stoichiometric β-BaSi2O5 phase, suggesting the presence of the region in which the Ba ions are enriched or cohesively distributed. A considerable structural similarity between the glassy sanbornite and the Ba5Si8O21 phase was also suggested in this study.

AB - We investigated the crystallization and resulting morphology of a stoichiometric barium-silicate glass 1BaO-2SiO2 (glassy sanbornite) by using transmission electron microscope and Raman spectroscopy. A crystalline aggregate structure consisting of a Ba5Si8O21 phase (trunk) and a β-BaSi2O5 phase (branch) was observed in the heat-treated glassy sanbornite. The Ba-richer phase of Ba 5Si8O21 precipitated prior to the formation of the stoichiometric β-BaSi2O5 phase, suggesting the presence of the region in which the Ba ions are enriched or cohesively distributed. A considerable structural similarity between the glassy sanbornite and the Ba5Si8O21 phase was also suggested in this study.

KW - Crystallization

KW - Raman spectroscopy

KW - Sanbornite

KW - Silicate glass

KW - TEM observation

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U2 - 10.4028/www.scientific.net/KEM.485.301

DO - 10.4028/www.scientific.net/KEM.485.301

M3 - Conference contribution

AN - SCOPUS:79960573888

SN - 9783037851821

VL - 485

T3 - Key Engineering Materials

SP - 301

EP - 304

BT - Key Engineering Materials

T2 - 30th Electronics Division Meeting of the Ceramic Society of Japan

Y2 - 29 October 2010 through 30 October 2010

ER -

Crystallization and morphology of glassy sanbornite

Abstract

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Other

Keywords

ASJC Scopus subject areas

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