ID | 46892 |
FullText URL | |
Author |
Saiki, Keiji
Sakida, Shinichi
Kaken ID
researchmap
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Abstract | A 10Na(2)S·30B(2)O(3)·60SiO(2) (mol %) glass was prepared, and the changes in glass structure and chemical state of sulfur caused by phase separation were investigated. In the as-prepared and heat-treated glasses, sulfur was present as S(2)− anion and polysulfide S(2)− and S(3)− anions, and Si–S and B–S bonds were not confirmed. A phase separation by spinodal decomposition was observed after heat-treatment, where sulfur was preferentially distributed to borate-rich phase. Even after the phase separation, formation of non-bridging oxygen was not recognized. The preferential distribution of sulfur anions in the present glass was explainable on the basis of the change in population of sodium ions, which compensated the negatively-charged sulfur anions.
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Keywords | Phase separation
Borosilicate glass
Chemical state of sulfur
Glass structure
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Published Date | 2010-07
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Publication Title |
Journal of the Ceramic Society of Japan
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Volume | volume118
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Issue | issue1379
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Publisher | The Ceramic Society of Japan
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Publisher Alternative | 公益社団法人日本セラミックス協会
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Start Page | 603
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End Page | 607
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ISSN | 1882-0743
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NCID | AA12229489
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Content Type |
Journal Article
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language |
English
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Copyright Holders | ©2010 The Ceramic Society of Japan. All rights reserved.
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File Version | publisher
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Refereed |
True
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DOI |