Investigation of water diffusion into quartz using ion beam analysis techniques

被引：15

作者：

Dersch, O ^{[1
]}

Zouine, A ^{[1
]}

Rauch, F ^{[1
]}

Ericson, JE ^{[1
]}

机构：

[1] UNIV CALIF IRVINE,DEPT ENVIRONM ANAL & DESIGN,IRVINE,CA 92717

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1997年 / 358卷 / 1-2期

关键词：

D O I：

10.1007/s002160050388

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Diffusion of water into quartz was studied by measuring H and O-18 concentration profiles in surface layers of quartz samples treated hydrothermally in the range of 125 degrees C to 200 degrees C. Sample surfaces were orientated normal to the c-axis. The measurements were performed using the nuclear reactions H-1(N-15,alpha gamma)C-12 and O-18(p,alpha)N-15. The diffusion profiles have widths of up to 500 nm. Diffusion rate constants derived from the profiles are in the range of 10(-15) cm(2)/s to 10(-18) cm(2)/s and show a distinct temperature dependence, yielding a rough estimate of about 60 kJ/mole for the activation energy.

引用

页码：217 / 219

页数：3

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