STRAIN GRADIENT INFLUENCES ON APPARENT DEPENDENCES OF HYDROGEN DIFFUSION-COEFFICIENTS ON HYDROGEN CONTENT IN THE PD81PT19HN SYSTEM

被引：29

作者：

KANDASAMY, K

TONG, XQ

LEWIS, FA

机构：

[1] UNIV JAFFNA,DEPT PHYS,JAFFNA,SRI LANKA

[2] TSING HUA UNIV,DEPT MAT SCI,BEIJING,PEOPLES R CHINA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 34期

关键词：

D O I：

10.1088/0953-8984/4/34/001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Consolidating studies are reported of 'uphill hydrogen diffusion' effects produced by lattice strain gradients during hydrogen permeation through tubular membranes of a Pt81Pt19 alloy at 25-degrees-C. Hydrogen permeation has been initiated by outer surface introductions and removals of hydrogen both from and into the gas phase and also by means of electrolysis. Results demonstrate further effects of strain gradients in producing misleading trends of dependence of hydrogen diffusion coefficients on hydrogen content.

引用

页码：L439 / L446

页数：8

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