Surface dynamics measurement on a gold based metallic glass

被引：6

作者：

Cao, C. P. ^{[1
]}

Yu, L. ^{[2
,3
]}

Perepezko, J. H. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Mat Sci & Engn Madison, Madison, WI 53706 USA

[2] Univ Wisconsin, Sch Pharm, Madison, WI 53705 USA

[3] Univ Wisconsin, Dept Chem Madison, Madison, WI 53705 USA

来源：

APPLIED PHYSICS LETTERS | 2020年 / 116卷 / 23期

关键词：

DIFFUSION; CRYSTALLIZATION; FORCE; FILMS; FLOW;

D O I：

10.1063/5.0007838

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The surface diffusion kinetics has been measured on an Au60Cu15.5Ag7.5Si17 metallic glass using the method of surface grating decay from room temperature up to 20K below the glass transition temperature (T-g). In the early stage of grating decay, the surface diffusion coefficients were estimated as varying in the range of 10(-20) to 10(-18) m(2)/s and the corresponding average activation energy is about 0.67 eV. During longer annealing, times the surface grating decay rate slowed down significantly. The slowing of the initial decay was a result of the surface dynamics and influenced by the surface segregation of silicon at a long time, which induced a surface crystallization of a silicon-rich phase.

引用

页数：4

共 48 条

[1] Carbon contamination and oxidation of Au surfaces under extreme ultraviolet radiation: An x-ray photoelectron spectroscopy study [J].

Al-Ajlony, Al-Montaser Bellah ;

Kanjilal, Aloke ;

Harilal, Sivanandan S. ;

Hassanein, Ahmed .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2012, 30 (04)

[2] High-resolution detection of Au catalyst atoms in Si nanowires [J].

Allen, Jonathan E. ;

Hemesath, Eric R. ;

Perea, Daniel E. ;

Lensch-Falk, Jessica L. ;

Li, Z. Y. ;

Yin, Feng ;

Gass, Mhairi H. ;

Wang, Peng ;

Bleloch, Andrew L. ;

Palmer, Richard E. ;

Lauhon, Lincoln J. .

NATURE NANOTECHNOLOGY, 2008, 3 (03) :168-173

[3]

[Anonymous], 2011, AM J GASTROENTEROL, V106, pS76, DOI DOI 10.1103/PHYSREVLETT.106.256103

[4] Dynamic Arrest in Multicomponent Glass-Forming Alloys [J].

Bartsch, Alexander ;

Raetzke, Klaus ;

Meyer, Andreas ;

Faupel, Franz .

PHYSICAL REVIEW LETTERS, 2010, 104 (19)

[5] Multiscale Relaxation Dynamics in Ultrathin Metallic Glass-Forming Films [J].

Bi, Q. L. ;

Lu, Y. J. ;

Wang, W. H. .

PHYSICAL REVIEW LETTERS, 2018, 120 (15)

[6]

Bonzel H. P, 1975, SURFACE PHYSICS MATE, VII, P280

[7] Surface Self-Diffusion of Organic Glasses [J].

Brian, Caleb W. ;

Yu, Lian .

JOURNAL OF PHYSICAL CHEMISTRY A, 2013, 117 (50) :13303-13309

[8] Liquid-like behaviours of metallic glassy nanoparticles at room temperature [J].

Cao, C. R. ;

Huang, K. Q. ;

Shi, J. A. ;

Zheng, D. N. ;

Wang, W. H. ;

Gu, L. ;

Bai, H. Y. .

NATURE COMMUNICATIONS, 2019, 10 (1)

[9] High surface mobility and fast surface enhanced crystallization of metallic glass [J].

Cao, C. R. ;

Lu, Y. M. ;

Bai, H. Y. ;

Wang, W. H. .

APPLIED PHYSICS LETTERS, 2015, 107 (14)

[10] Scratching the surface: Fundamental investigations of tribology with atomic force microscopy [J].

Carpick, RW ;

Salmeron, M .

CHEMICAL REVIEWS, 1997, 97 (04) :1163-1194

← 1 2 3 4 5 →