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Observation of impurities in ice
Author(s) -
Cullen D.,
Baker I.
Publication year - 2001
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.10000
Subject(s) - crystallite , impurity , grain boundary , microanalysis , scanning electron microscope , materials science , sulfur , mineralogy , analytical chemistry (journal) , crystallography , chemistry , metallurgy , microstructure , composite material , chromatography , organic chemistry
This paper presents a new method for determining the microstructural location of impurities in polycrystalline ice, which involves allowing the ice to sublimate under vacuum and then identifying the concentrated impurities using energy dispersive X‐ray microanalysis in a low‐vacuum scanning electron microscope. The method allows the presence of impurities in both the grain boundaries and the lattice of natural polycrystalline ice to be observed. Using this technique on natural ice, filaments consisting chiefly of NaCl were observed in some grain boundaries, small amounts of sulfur and chlorine were found in the grain interiors of the ice, and large concentrations of sulfur were observed in inclusions. Microsc. Res. Tech. 55:198–207, 2001. © 2001 Wiley‐Liss, Inc.