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Title: The kinetics of internal structural relaxation of metallic glasses probed with ion beams and resistivity measurements

Abstract

The kinetics of structural relaxations in glassy metal Zr{sub 65}Al{sub 7.5}Cu{sub 27.5} films are monitored using resistivity measurements. As-prepared samples irreversibly relax towards their metastable equilibrium or steady-state in close relation to co-occurring surface smoothing, when exposed to annealing and ion treatment. Vice versa, ion beams are used as a tool to probe the response to small structural disturbances which are found to relax thermally following a stretched exponential time dependence. A strongly decreasing Kohlrausch exponent with temperature indicates increasing dynamic heterogeneities during successive freezing out of relaxational modes.

Authors:
 [1]
  1. I. Physikalisches Institut Georg-August-Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany)
Publication Date:
OSTI Identifier:
20713937
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 97; Journal Issue: 9; Other Information: DOI: 10.1063/1.1884753; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; ANNEALING; COPPER ALLOYS; DISTURBANCES; ELECTRIC CONDUCTIVITY; FREEZING OUT; ION BEAMS; METALLIC GLASSES; RELAXATION; ROUGHNESS; STEADY-STATE CONDITIONS; TERNARY ALLOY SYSTEMS; THIN FILMS; TIME DEPENDENCE; ZIRCONIUM ALLOYS

Citation Formats

Mayr, S.G. The kinetics of internal structural relaxation of metallic glasses probed with ion beams and resistivity measurements. United States: N. p., 2005. Web. doi:10.1063/1.1884753.
Mayr, S.G. The kinetics of internal structural relaxation of metallic glasses probed with ion beams and resistivity measurements. United States. doi:10.1063/1.1884753.
Mayr, S.G. Sun . "The kinetics of internal structural relaxation of metallic glasses probed with ion beams and resistivity measurements". United States. doi:10.1063/1.1884753.
@article{osti_20713937,
title = {The kinetics of internal structural relaxation of metallic glasses probed with ion beams and resistivity measurements},
author = {Mayr, S.G.},
abstractNote = {The kinetics of structural relaxations in glassy metal Zr{sub 65}Al{sub 7.5}Cu{sub 27.5} films are monitored using resistivity measurements. As-prepared samples irreversibly relax towards their metastable equilibrium or steady-state in close relation to co-occurring surface smoothing, when exposed to annealing and ion treatment. Vice versa, ion beams are used as a tool to probe the response to small structural disturbances which are found to relax thermally following a stretched exponential time dependence. A strongly decreasing Kohlrausch exponent with temperature indicates increasing dynamic heterogeneities during successive freezing out of relaxational modes.},
doi = {10.1063/1.1884753},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 9,
volume = 97,
place = {United States},
year = {2005},
month = {5}
}