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Solving the puzzle of eutectic compositions with 'Miracle glasses'

Solving the puzzle of eutectic compositions with 'Miracle glasses' CORRESPONDENCE From our readers SOLVING THE PUZZLE OF EUTECTIC temperature, Hume-Rothery and Anderson COMPOSITIONS WITH ‘MIRACLE GLASSES’ suggested that the eutectic liquid structure must consist of icosahedral 1–5–1–5–1 atomic chains, To the editor — The structural model for which can be decorated in such a way that they metallic glasses published in the October issue of do not have B–B nearest neighbours. However, Nature Materials may account for the observed liquid structures cannot be modelled by non- compositions of binary A B eutectics, which atom-sharing atomic clusters, which necessarily x y occur most frequently at integer values of x result in overall alloy compositions that are and y. In 1935, D. Stockdale suggested that, in different from that of individual clusters. binary alloy phase diagrams, the compositions Hume-Rothery and Anderson themselves of eutectic points should correspond with simple characterized their formulations as “admittedly whole-number ratios of the two kinds of atoms speculative and incomplete” and to my A (solvent > 50 at.%) and B (solute < 50 at.%). knowledge the puzzle regarding frequently There was insuffi cient data to confi rm this occurring eutectic compositions has remained prediction at the time, but in 1960, W. Hume- unresolved. Although not http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nature Materials Springer Journals

Solving the puzzle of eutectic compositions with 'Miracle glasses'

Nature Materials , Volume 4 (1) – Jan 1, 2005

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References (6)

Publisher
Springer Journals
Copyright
Copyright © 2005 by Nature Publishing Group
Subject
Materials Science; Materials Science, general; Optical and Electronic Materials; Biomaterials; Nanotechnology; Condensed Matter Physics
ISSN
1476-1122
eISSN
1476-4660
DOI
10.1038/nmat1289
Publisher site
See Article on Publisher Site

Abstract

CORRESPONDENCE From our readers SOLVING THE PUZZLE OF EUTECTIC temperature, Hume-Rothery and Anderson COMPOSITIONS WITH ‘MIRACLE GLASSES’ suggested that the eutectic liquid structure must consist of icosahedral 1–5–1–5–1 atomic chains, To the editor — The structural model for which can be decorated in such a way that they metallic glasses published in the October issue of do not have B–B nearest neighbours. However, Nature Materials may account for the observed liquid structures cannot be modelled by non- compositions of binary A B eutectics, which atom-sharing atomic clusters, which necessarily x y occur most frequently at integer values of x result in overall alloy compositions that are and y. In 1935, D. Stockdale suggested that, in different from that of individual clusters. binary alloy phase diagrams, the compositions Hume-Rothery and Anderson themselves of eutectic points should correspond with simple characterized their formulations as “admittedly whole-number ratios of the two kinds of atoms speculative and incomplete” and to my A (solvent > 50 at.%) and B (solute < 50 at.%). knowledge the puzzle regarding frequently There was insuffi cient data to confi rm this occurring eutectic compositions has remained prediction at the time, but in 1960, W. Hume- unresolved. Although not

Journal

Nature MaterialsSpringer Journals

Published: Jan 1, 2005

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