EXAFS studies on undercooled liquid Co80Pd20 alloy

被引：33

作者：

Jacobs, G ^{[1
]}

Egry, I ^{[1
]}

机构：

[1] Deutsch Luft & Raumfahrt eV, Inst Raumsimulat, D-51170 Cologne, Germany

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.59.3961

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By combining electromagnetic levitation with the EXAFS method it is possible to investigate the short-range order of metallic melts in a wide temperature range. Due to the containerless environment it is even possible to obtain insight into the metastable state of a deeply undercooled melt not amenable by other methods. This allows us to study the solid and the liquid state in the same temperature range. Here we report on the first quantitative EXAFS measurements on a liquid Co80Pd20 alloy undercooled by more than 300 degrees C, and on solid Co80Pd20. From the spectra, we have obtained the temperature dependence of the neighbor distances as well as of the Debye-Waller factors.

引用

页码：3961 / 3968

页数：8

共 24 条

[21] STRUCTURE AND FLUIDITY OF METALS IN LIQUID-STATE [J].

TAKEUCHI, S .

MATERIALS TRANSACTIONS JIM, 1989, 30 (09) :647-659

[22]

TEO BK, 1981, EXAFS SPECTRA

[23] FULL CORRECTION OF THE SELF-ABSORPTION IN SOFT-FLUORESCENCE EXTENDED X-RAY-ABSORPTION FINE-STRUCTURE [J].

TROGER, L ;

ARVANITIS, D ;

BABERSCHKE, K ;

MICHAELIS, H ;

GRIMM, U ;

ZSCHECH, E .

PHYSICAL REVIEW B, 1992, 46 (06) :3283-3289

[24] Nonequilibrium solidification of hypercooled Co-Pd melts [J].

Volkmann, T ;

Wilde, G ;

Willnecker, R ;

Herlach, DM .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (06) :3028-3034

← 1 2 3 →