IMPURITY SEGREGATION STUDY AT THE SURFACE OF YTTRIA-ZIRCONIA ELECTROLYTES BY XPS

被引：36

作者：

HUGHES, AE

BADWAL, SPS

机构：

[1] CSIRO, Division of Materials Science and Technology, Clayton, 3168 Vic., Normanby Road

来源：

SOLID STATE IONICS | 1990年 / 40-1卷

关键词：

D O I：

10.1016/0167-2738(90)90348-U

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：

The segregation of yttrium as a function of the heat treatment has been studied on the external surface of polycrystalline yttria-zirconia electrolytes with X-ray photoelectron spectroscopy (XPS). Yttrium segregates at the external surface along with a number of impurities dominated by silicon. Generally, silicon segregates in a small region near the surface, whereas the enrichment region for yttrium is considerably deeper. Grain boundary migration appears to be the predominant mechanism for impurity segregation at the external surface. © 1990.

引用

页码：312 / 315

页数：4

共 6 条

[1] RELATIONSHIP BETWEEN PHASE-STABILITY AND CONDUCTIVITY OF YTTRIA TETRAGONAL ZIRCONIA [J].