Liquid Al80Cu20:: Atomic diffusion and viscosity

被引：46

作者：

Brillo, J. ^{[1
]}

Chathoth, S. M. ^{[2
]}

Koza, M. M. ^{[3
]}

Meyer, A. ^{[1
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Mat Phys Weltraum, D-51170 Cologne, Germany

[2] Tech Univ Munich, Phys Dept E13, D-85747 Garching, Germany

[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 12期

关键词：

D O I：

10.1063/1.2977863

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Properties of mass transport in liquid Al80Cu20 were measured over a broad temperature range of more than 500 K by means of oscillating cup viscometry and quasielastic neutron scattering. The shear viscosity and the coefficient of the Cu self-diffusion exhibit an Arrhenius-type temperature dependence. The activation energy for the viscous flow is 2.4 times smaller than that of the Cu self-diffusion. Below 1400 K, the Cu self-diffusion becomes increasingly smaller than expected from the viscosity data rescaled via the Stokes-Einstein relation. (C) 2008 American Institute of Physics.

引用

页数：3

共 27 条

[1] Reference data for the density and viscosity of liquid aluminum and liquid iron [J].

Assael, MJ ;

Kakosimos, K ;

Banish, RM ;

Brillo, J ;

Egry, I ;

Brooks, R ;

Quested, PN ;

Mills, KC ;

Nagashima, A ;

Sato, Y ;

Wakeham, WA .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 2006, 35 (01) :285-300

[2]

BINDER K, 2005, GLASSY MATS INTRO TH

[3]

Boon JP., 1980, MOL HYDRODYNAMICS

[4] The breakdown of the Stokes-Einstein relation in supercooled binary liquids [J].

Bordat, P ;

Affouard, F ;

Descamps, M ;

Müller-Plathe, F .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2003, 15 (32) :5397-5407

[5] Density and thermal expansion of liquid binary Al-Ag and Al-Cu alloys [J].

Brillo, Jürgen ;

Egry, Ivan ;

Westphal, Jenny .

Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, 2008, 99 (02) :162-167

[6] Measurement of viscosities of metals and alloys with an oscillating viscometer [J].

Brooks, RF ;

Day, AP ;

Andon, RJL ;

Chapman, LA ;

Mills, KC ;

Quested, PN .

HIGH TEMPERATURES-HIGH PRESSURES, 2001, 33 (01) :73-82

[7] Heterogeneity at the glass transition: Translational and rotational self-diffusion [J].

Chang, I ;

Sillescu, H .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (43) :8794-8801

[8] Atomic diffusion in liquid Ni, NiP, PdNiP, and PdNiCuP alloys [J].

Chathoth, SM ;

Meyer, A ;

Koza, MM ;

Juranyi, F .

APPLIED PHYSICS LETTERS, 2004, 85 (21) :4881-4883

[9]

CHATHOTH SM, 2005, THESIS TU MUNCHEN

[10] Diffusion of Cu in AlCu alloys of different composition by quasielastic neutron scattering [J].

Dahlborg, U. ;

Besser, M. ;

Calvo-Dahlborg, M. ;

Janssen, S. ;

Juranyi, F. ;

Kramer, M. J. ;

Morris, J. R. ;

Sordelet, D. J. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2007, 353 (32-40) :3295-3299

← 1 2 3 →