Journal
SCRIPTA MATERIALIA
Volume 69, Issue 5, Pages 413-416Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.05.046
Keywords
Grain boundaries; Nanocrystalline; Tungsten; Precession electron diffraction
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Funding
- SRC [1292.008, 2121.001, 2323.001]
- MRSEC program of the NSF [DMR-0520425]
- ONR-MURI [N00014-11-1-0678]
- Australian Research Council
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Transmission electron microscopy has been used to collect high-resolution orientation maps from a tungsten thin film with a 100 nm average grain size. The orientation distribution of grain boundary planes at specific lattice misorientations is non-uniform and has characteristics similar to materials with larger grain sizes. A comparison of the populations of grain boundaries in tungsten with the same boundaries in a ferritic steel suggests that polycrystals with a body-centered cubic crystal structure have similar grain boundary character distributions. (c) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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