Atomic diffusion in liquid Ni, NiP, PdNiP, and PdNiCuP alloys

被引：81

作者：

Chathoth, SM

Meyer, A ^{[1
]}

Koza, MM

Juranyi, F

机构：

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

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

[3] Univ Saarland, D-66123 Saarbrucken, Germany

[4] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 21期

关键词：

D O I：

10.1063/1.1825617

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the self-diffusion of Ni in liquid Ni, Ni80P20, Pd40Ni40P20, and Pd43Ni10Cu27P20 at temperatures up to 1795 K with incoherent, quasielastic neutron scattering. Values of measured self-diffusion coefficients vary over the accessible temperature ranges as a function of composition only within 10%. Although mixing has a drastic effect on the liquidus temperature and the undercooling capabilities, a relation between these properties and the atomic diffusion in the liquid is not observed. Apparently, diffusive motion is governed by the packing fraction of the atoms, that is very similar in these dense liquids. (C) 2004 American Institute of Physics.

引用

页码：4881 / 4883

页数：3