Preparation and evaluation of iron phosphate glass systems with high chemical durability

Amamoto, Ippei; Myochin, Munetaka; Akai, Naoto*; Yano, Tetsuji*; Shibata, Shuichi*

The chemical durability of iron phosphate glasses was investigated by substituting MnO $_{2}$ or CoO for a part of Fe $_{2}$ O $_{3}$ and by addition of pseudo nuclear waste (NW). The glass structure was also analyzed by X-ray photoelectron spectroscopy (XPS). The substitution of MnO $_{2}$ and CoO decreased chemical durability of the glass without NW, while NW remarkably increased the chemical durability of glasses substituted by MnO $_{2}$ and CoO. According to XPS measurement, the substitution of MnO $_{2}$ and CoO increased bridging oxygen ratio and NW decreased it. The fraction of bridging oxygen is suggested to be one of the factors to affect the improvement of chemical durability.

Language	:	Japanese
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Meeting title	:	第50回ガラス及びフォトニクス材料討論会/5回ガラス技術シンポジウム
Held date	:	2009/10
Location (city)	:	京都
Location (country)	:	日本
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Keywords	:	no keyword
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Cooperating Institute	:	東京工業大学

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Registration No. : BB20092435
JAEA Abstracts No. :
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