MASS-TRANSPORT IN THE PRESENCE OF INTERNAL DEFECT REACTIONS - CONCEPT OF CONSERVATIVE ENSEMBLES .3. TRAPPING EFFECT OF DOPANTS ON CHEMICAL DIFFUSION

被引：74

作者：

MAIER, J

机构：

[1] Max-Planck-Institut fur Fcstkörperforschung, Stuttgart

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1993年 / 76卷 / 05期

关键词：

D O I：

10.1111/j.1151-2916.1993.tb03745.x

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：

Trapping effects of dopant ions on the chemical diffusion due to valence changes of the impurity ions (association with electronic charge carriers) and/or due to association with ionic defects are considered. It is shown that the chemical or ambipolar diffusion coefficient may be substantially changed and may even be lower than both the diffusivity of the ionic and the electronic defects under consideration. Data reinterpretation is exemplified for SrTiO3 and ZrO2 (Y2O3).

引用

页码：1223 / 1227

页数：5

共 8 条

[1] OPTICAL INVESTIGATION OF OXYGEN INCORPORATION IN SRTIO3 [J].