Effect of additives on the distribution of phosphorus associated with phase separation of borosilicate glasses
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- BENINO Yasuhiko
- Graduate School of Environmental Science, Okayama University
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- OHTSUKI Yuki
- Graduate School of Environmental Science, Okayama University
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- SAKIDA Shinichi
- Environmental Management Center, Okayama University
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- NANBA Tokuro
- Graduate School of Environmental Science, Okayama University
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Sodium borosilicate glasses containing phosphorus were prepared, and the effect of Al2O3 and TiO2 addition on the distribution behavior of phosphorus atoms associated with the phase separation was investigated. After heat treatment, a phase separation by the spinodal decomposition was commonly confirmed by SEM observation. In the additive-free sample, phosphorus was preferentially distributed into B2O3-rich phase after the phase separation, and after adding Al2O3 or TiO2, the amount of phosphorus distributed into SiO2-rich phase increased. It was also suggested that TiO2 had a stronger influence on the phosphorus distribution into SiO2-rich phase than Al2O3. 31P MAS-NMR revealed that most of phosphorus atoms in the additive-free glass were present in PO4 units consisting of two terminal oxide ions, and the terminal oxide ions decreased and increased after the additions of Al2O3 and TiO2, respectively. It was suggested that this structural change brought about a change in the distribution of phosphorus.
収録刊行物
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 120 (1407), 490-493, 2012
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390001205287996160
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- NII論文ID
- 130004480122
- 40019488313
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- NII書誌ID
- AA12229489
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- ISSN
- 13486535
- 18820743
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- NDL書誌ID
- 024090323
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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