SELF-DIFFUSION AND IONIC TRANSPORT OF SODIUM AND CESIUM IONS IN PARTICLES OF HYDROUS ZIRCONIA

被引：9

作者：

ELNAGGAR, IM

ELDESSOUKY, MI

ALY, HF

机构：

[1] ATOM ENERGY AUTHOR,HOT LAB,CAIRO,EGYPT

[2] ATOM ENERGY AUTHOR,CTR WASTE MANAGEMENT,CAIRO,EGYPT

来源：

SOLID STATE IONICS | 1992年 / 57卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(92)90167-N

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Self-diffusion of Na+ and Cs+ in hydrous zirconia heated at 50, 200 and 400-degrees-C was studied as a function of ion exchange capacity. The mobility of Na+ and Cs+ decrease with increase of heating temperature and ion exchange capacity. At the same capacity, DBAR of Na+ is higher than that of Cs+ at all heating temperatures. The diffusion constants, activation energies and entropies of activation were determined. In light of these parameters, the mechanism of isotopic exchange is elucidated.

引用

页码：339 / 343

页数：5

共 17 条

[1] ION EXCHANGE IN POROUS CRYSTALS .1. SELF- AND EXCHANGE-DIFFUSION OF IONS IN CHABAZITES [J].