A direct optical method for the study of grain boundary melting

Details A direct optical method for the study of grain boundary melting A direct optical method for the study of grain boundary melting

2009-08-03

arxiv.org/abs/0908.0335v2

E. S. Thomson, J. S. Wettlaufer, and L. A. Wilen. Review of Scientific Instruments, 80(10):103903, 2009

Physics

Condensed Matter

Materials Science

8 pages, 8 figures, updated with minor changes made to published version

Scientific paper

10.1063/1.3249562

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.

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