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Superheating of small solid-argon bubbles in aluminum

Rossouw, C. and Donnelly, S. E. (1985) Superheating of small solid-argon bubbles in aluminum. Physical Review Letters, 55 (27). pp. 2960-2963. ISSN 0031-9007

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Abstract

Small solid-Ar bubbles, formed by the implantation of 50-keV Ar+ ions into Al, are observed to melt at 730 K, compared with an equilibrium bulk melting temperature of 250 K. A model based on the suppression of Ar thermal vibrations at the Al interface is used to account for the superheating of 480 K. Measurements on the temperature dependence of diffracted electron intensities from these bubbles yield Debye-Waller factors consistent with an effective Debye temperature of about 140 K, compared with a bulk value of 110 K.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Computing and Engineering > Electron Microscopy and Materials Analysis
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Depositing User: Graeme Greaves
Date Deposited: 02 Oct 2013 10:53
Last Modified: 02 Oct 2013 10:53
URI: http://eprints.hud.ac.uk/id/eprint/18637

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