Initial corrosion stages of a heavy metal fluoride glass in water

被引：6
|
作者：
Hueber, B
Frischat, GH
Maldener, A
Dersch, O
Rauch, F
机构：
[1] Tech Univ Clausthal, Inst Nichtmetall Werkstoffe, D-38678 Clausthal Zellerfeld, Germany
[2] Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1999年 / 256卷
关键词：
D O I：
10.1016/S0022-3093(99)00323-3
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A 50ZrF(4)-33BaF(2)-10YF(3)-7AlF(3) (mol%) pre-sputtered glass was corroded in H2O for durations between 1 and 50 min at 20 degrees C, 40 degrees C, 60 degrees C and 80 degrees C. The profiles of Zr, Ba, Y and Al were measured by secondary neutral mass spectrometry, H was measured by nuclear reaction analysis, whereas O was monitored using Rutherford backscattering spectrometry. On the basis of these results it is shown that the corrosion zone approaches a composition near that of the BaZrF6 phase. Further, a modified corrosion model for the initial stages of the glass attack is proposed, where H2O is the initiating species. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：130 / 134
页数：5
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