Regular Article

Observation of impurities in ice

  1. D. Cullen,
  2. I. Baker*

Article first published online: 17 OCT 2001

DOI: 10.1002/jemt.10000

Issue

Microscopy Research and Technique

Microscopy Research and Technique

Special Issue: Functional Cytology of Nitric Acid in Striated Muscle—Part I

Volume 55, Issue 3, pages 198–207, 1 November 2001

Additional Information

How to Cite

Cullen, D. and Baker, I. (2001), Observation of impurities in ice. Microsc. Res. Tech., 55: 198–207. doi: 10.1002/jemt.10000

Author Information

  1. Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755-8000

*Thayer School of Engineering, 112 Cummings Hall, Dartmouth College, Hanover, New Hampshire 03755-8000

Publication History

  1. Issue published online: 17 OCT 2001
  2. Article first published online: 17 OCT 2001
  3. Manuscript Accepted: 15 JUL 2001
  4. Manuscript Received: 3 MAY 2001

Funded by

  • National Science Foundation. Grant Number: OPP-9980379
  • Army Research Office (ARO). Grant Numbers: DAAD 19-00-1-0444, DAAH 04-96-1-0292, DAAD 19-99-10068

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Abstract

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.

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