Document Type

Article

Publication Date

12-23-1996

Journal or Book Title

Physical Review Letters

Volume

77

Issue

26

First Page

5233

Last Page

5236

DOI

10.1103/PhysRevLett.77.5233

Abstract

The self-diffusivity of 54Mn in single grain icosahedral Al70Pd21.5Mn8.5 quasicrystals has been determined by a precision grinding technique. In the range from 870 to 1093 K the temperature dependence of the Mn self-diffusivity D follows the Arrhenius equation with an activation energy Q = (180.8±4.6)kJmol-1 and a pre-exponential factor D0 = 3.4×10-4m2s-1. The experimental results are discussed together with diffusion mechanisms proposed for quasicrystals from theoretical considerations.

Comments

This article is from Physical Review Letters 77 (1996): 5233–5236, doi:10.1103/PhysRevLett.77.5233.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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