Ni self-diffusion in refractory Al-Ni melts

被引：51

作者：

Stueber, S. ^{[1
]}

Holland-Moritz, D. ^{[2
]}

Unruh, T. ^{[3
]}

Meyer, A. ^{[2
]}

机构：

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

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

[3] Tech Univ Munich, Forschungsneutronenquelle Heinz Maier Leibnitz FR, D-85747 Garching, Germany

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 02期

关键词：

CRYSTAL-GROWTH; SOLIDIFICATION; DENSITY; SIMULATION; NICKEL; VOLUME; CU;

D O I：

10.1103/PhysRevB.81.024204

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work presents investigations on the Ni self-diffusion coefficient in Al-Ni melts forming the technological relevant intermetallic phases Al50Ni50 and Al25Ni75 by quasielastic neutron scattering. We found that the Ni self-diffusivity at constant temperature is nearly independent of the composition within the composition range between 0 and 50 at. % Al. This may be a result of the small composition dependence of the atomic volume observed in the same range of composition.

引用

页数：5

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