SEQUENTIAL SURFACE SEGREGATION KINETICS OF THE TERNARY-SYSTEM FE-SI-S

被引：7

作者：

DUPLESSIS, J

机构：

[1] Department of Physics, UOFS

来源：

SURFACE SCIENCE | 1993年 / 287卷 / pt B期

关键词：

D O I：

10.1016/0039-6028(93)91087-6

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 sequential segregation of silicon and sulphur to the surface of a polycrystalline Fe-Si(0.4 at%)-S(200 ppm) was measured in the temperature range 873-1023 K by Auger electron spectroscopy. It was found that silicon segregates to the surface to be later replaced by the slower segregating sulphur. These results are interpreted and fitted by a kinetic ternary segregation model (MODAR) yielding segregation energies and diffusion coefficients for both species.

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页码：857 / 861

页数：5

相关论文

共 19 条

[1] SIMPLIFIED STATISTICAL-MODEL FOR COMPETITIVE SEGREGATION KINETICS - APPLICATION TO THE FE-6AT-PERCENT-SI ALLOY SURFACE [J].

BOUDJEMAA, MF ;

MOSSER, A .

JOURNAL OF THE LESS-COMMON METALS, 1988, 145 (1-2) :55-61

[2]

Crank J., 1979, MATH DIFFUSION, V2nd

[3]

DARKEN LS, 1949, T AM I MIN MET ENG, V180, P430

[4] THE KINETICS OF WEAK SURFACE SEGREGATION [J].

DUPLESSIS, J ;

TAGLAUER, E .

SURFACE SCIENCE, 1992, 260 (1-3) :355-360

[5] A MODEL FOR SURFACE SEGREGATION IN MULTICOMPONENT ALLOYS .3. THE KINETICS OF SURFACE SEGREGATION IN A BINARY ALLOY [J].

DUPLESSIS, J ;

VANWYK, GN .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1989, 50 (03) :237-245

[6] A MODEL FOR SURFACE SEGREGATION IN MULTICOMPONENT ALLOYS .2. COMMENT ON OTHER SEGREGATION ANALYSES [J].

DUPLESSIS, J ;

VANWYK, GN .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1988, 49 (12) :1451-1458

[7] THE EFFECT OF HIGH-TEMPERATURE SPUTTERING ON THE T1/2 DEPENDENCE OF SEGREGATION KINETICS IN AN AL-ALLOY [J].

DUPLESSIS, J ;

VILJOEN, PE ;

VANWYK, GN .

SURFACE SCIENCE, 1991, 244 (03) :277-284

[8] A MODEL FOR SURFACE SEGREGATION IN MULTICOMPONENT ALLOYS .4. THE KINETICS OF DESEGREGATION IN A BINARY ALLOY [J].

DUPLESSIS, J ;

VANWYK, GN .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1989, 50 (03) :247-250

[9] A MODEL FOR SURFACE SEGREGATION IN MULTICOMPONENT ALLOYS .1. EQUILIBRIUM SEGREGATION [J].

DUPLESSIS, J ;

VANWYK, GN .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1988, 49 (12) :1441-1450

[10] A MODEL FOR SURFACE SEGREGATION IN MULTICOMPONENT ALLOYS .5. THE KINETICS OF SURFACE SEGREGATION IN MULTICOMPONENT ALLOYS [J].

DUPLESSIS, J ;

VANWYK, GN .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1989, 50 (03) :251-257