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Determining the orientations of ice crystals using electron backscatter patterns
Author(s) -
Iliescu Daniel,
Baker Ian,
Chang Hui
Publication year - 2004
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.20029
Subject(s) - crystallite , electron backscatter diffraction , orientation (vector space) , ice crystals , scanning electron microscope , materials science , environmental scanning electron microscope , electron microscope , backscatter (email) , optics , image resolution , clathrate hydrate , mineralogy , geology , crystallography , chemistry , physics , composite material , geometry , microstructure , hydrate , computer science , telecommunications , mathematics , organic chemistry , metallurgy , wireless
Knowing the orientations of the ice crystals in a polycrystalline aggregate is essential for understanding and modeling the flow of naturally occurring ice. Here we show, for the first time, that the orientation of crystals in polycrystalline ice can be determined with a higher angular and spatial resolution and more rapidly than any currently used method by using electron backscatter patterns (EBSPs) in a cold‐stage equipped scanning electron microscope. We also present an orientation image map constructed from EBSPs, and discuss possible applications of the technique for ice. The results indicate that obtaining EBSPs and orientation images from other frozen water‐containing materials, such as clathrate hydrates, may also be possible. Microsc. Res. Tech. 63:183–187, 2004. © 2004 Wiley‐Liss, Inc.