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Surface structures of iron-phosphate glasses with high chemical durability

高い化学的安定性を有する鉄リン酸塩ガラスの表面構造

矢野 哲司*; 赤木 直人*; 柴田 修一*; 沖田 壮史*; 松山 加苗*; 宮本 真哉*; 天本 一平; 小藤 博英  

Yano, Tetsuji*; Akagi, Naoto*; Shibata, Shuichi*; Okita, Takeshi*; Matsuyama, Kanae*; Miyamoto, Shinya*; Amamoto, Ippei; Kofuji, Hirohide

鉄リン酸塩ガラスの化学的安定性が増大する原理を検討するため、蛍光X線分析を用いたガラス表面構造の解析を行った。本研究では数種類の鉄リン酸塩ガラス試料について一部の酸化鉄を他の遷移金属酸化物で置換し、化学的安定性の評価を行っており、元素浸出試験の前後の表面構造の変化に関して得られた知見を報告する。

Surface structures of iron phosphate glasses (IPG) are investigated in order to know the origin of the high chemical durability using X-ray photoelectron spectroscopy. In this study, several IPG samples in which a part of iron oxide are replaced by other transition metal oxides are prepared and subjected to the chemical durability test. Surface structures are investigated before and after the durability test and the information on the structural changes are obtained.

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