INFLUENCE OF IONIC CHARGE ON DIFFUSION IN THE SURFACE-LAYER OF MAGNESIA

被引：0

作者：

LIN, CM

STUBICAN, VS

机构：

[1] Pennsylvania State Univ, University, Park, PA, USA, Pennsylvania State Univ, University Park, PA, USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1987年 / 70卷 / 04期

关键词：

MAGNESIA; -; Diffusion;

D O I：

暂无

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：

The diffusion of **5**7Co isotope on the MgO (100) surface was investigated by the edge-source method. The surface diffusion parameter was determined over the temperature region 750 degree to 1250 degree C. An Arrhenius plot shows a break at ca. 1100 degree C. Below this temperature ionic or localized transport predominates and above it nonlocalized transport seems to predominate. The divalent Co ion diffuses faster than the trivalent Cr ion in the surface layer.

引用

页码：C73 / C74

页数：2

共 11 条

[1]

AUKRUST E, 1964, T METALL SOC AIME, V230, P378

[2]

Bonzel H. P., 1983, Surface Mobilities on Solid Materials: Fundamental Concepts and Applications. Proceedings of a NATO Advanced Study Institute, P195

[3] GRAIN BOUNDARY IMPURITY DIFFUSION [J].