検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年
検索結果: 1 件中 1件目~1件目を表示
  • 1

発表形式

Initialising ...

選択項目を絞り込む

掲載資料名

Initialising ...

発表会議名

Initialising ...

筆頭著者名

Initialising ...

キーワード

Initialising ...

使用言語

Initialising ...

発行年

Initialising ...

開催年

Initialising ...

選択した検索結果をダウンロード

論文

Structural significance of nickel sites in aluminosilicate glasses

門 力也*; 岸 哲生*; Lelong, G.*; Galoisy, L.*; 松村 大樹; Calas, G.*; 矢野 哲司*

Journal of Non-Crystalline Solids, 539, p.120070_1 - 120070_8, 2020/07

 被引用回数:1 パーセンタイル:0.01(Materials Science, Ceramics)

We use Ni ions as a structural probe to investigate the influence of modifier cations on the structure of aluminosilicate glasses. The color of these glasses varies with the nature of the cations present in glass. Structural origin of this change is investigated by optical absorption and X-ray absorption spectroscopies. Our results reveal pronounced changes in Ni coordination. Tetrahedra Ni$$^{2+}$$ ins present in all these glasses and Ni$$^{2+}$$ in 5-fold coordination site also appears. There is a weak contribution from octahedral Ni$$^{2+}$$. The concentration of tetrahedral Ni$$^{2+}$$ deduced from the optical absorption spectroscopy increases with decreasing cation field strength, explaining the variation of color from yellow and brown to purple. This is in line with X-ray absorption spectroscopy data. Cation-oxygen distances and site symmetry indicate a similar structural behavior of Mg$$^{2+}$$ and Ni$$^{2+}$$, being a good structural probe to Mg.

1 件中 1件目~1件目を表示
  • 1