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A direct optical method for the study of grain boundary melting

Rev. Sci. Instrum. 80, 103903 (2009); doi:10.1063/1.3249562

Published 26 October 2009

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E. S. Thomson,1 J. S. Wettlaufer,1,2,3 and L. A. Wilen1,4
1Department of Geology and Geophysics, Yale University, New Haven, Connecticut 06520, USA
2Department of Physics, Yale University, New Haven, Connecticut 06520, USA
3Program in Applied Mathematics, Yale University, New Haven, Connecticut 06520, USA
4Unilever Research Corporation, Trumbull, Connecticut 06611, USA
The structure and evolution of grain boundaries underlies the nature of polycrystalline materials. Here we describe an experimental apparatus and light reflection technique for measuring disorder at grain boundaries in optically clear material, in thermodynamic equilibrium. The approach is demonstrated on ice bicrystals. Crystallographic orientation is measured for each ice sample. The type and concentration of impurity in the liquid can be controlled and the temperature can be continuously recorded and controlled over a range near the melting point. The general methodology is appropriate for a wide variety of materials. ©2009 American Institute of Physics
History: Received 7 July 2009; accepted 24 September 2009; published 26 October 2009
Permalink: http://link.aip.org/link/?RSINAK/80/103903/1
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KEYWORDS and PACS

Keywords
PACS
  • 61.72.Mm
    Grain and twin boundaries
  • 64.70.dj
    Melting of specific substances
  • 61.50.-f
    Structure of bulk crystals
  • 64.30.-t
    Equations of state of specific substances
  • 61.72.sh
    Impurity distribution in crystals
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0034-6748 (print)   1089-7623 (online)
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REFERENCES (27)
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