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Article
Mn Self-Diffusion in Single Grain Icosahedral Al70Pd21.5Mn8.5 Quasicrystals
Physical Review Letters
  • Wolfgang Sprengel, Iwate University
  • Thomas A. Lograsso, Iowa State University
  • Hideo Nakajima, Iwate University
Document Type
Article
Publication Date
12-23-1996
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
Date Available
2013-09-20
File Format
application/pdf
Citation Information
Wolfgang Sprengel, Thomas A. Lograsso and Hideo Nakajima. "Mn Self-Diffusion in Single Grain Icosahedral Al70Pd21.5Mn8.5 Quasicrystals" Physical Review Letters Vol. 77 Iss. 26 (1996) p. 5233 - 5236
Available at: http://works.bepress.com/thomas_lograsso/17/