IMPEDANCE STUDIES OF THE OXIDE LAYER ON ZIRCALOY AFTER PREVIOUS OXIDATION IN WATER-VAPOR AT 400-DEGREES-C

被引:57
|
作者
GOHR, H
SCHALLER, J
SCHILLER, CA
机构
[1] Institut für Physikalische und Theoretische Chemie, Universität Erlangen-Nürnberg
关键词
ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS); HIGH TEMPERATURE; OXIDE LAYER; ZIRCONIUM (ZIRCALOY);
D O I
10.1016/0013-4686(93)80323-R
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Zircaloy samples were oxidized in water vapour at 400-degrees-C and 105 bar for up to 90 days. The samples were then studied by EIS in 0.5M K2SO4 at 20-200-degrees-C (1-15 bar). Evaluation yields data about layer thickness, irreversible penetration of electrolyte into pores aided by increasing pressure, activation energies of transport processes from the temperature dependence of kinetic parameters.
引用
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页码:1961 / 1964
页数:4
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